OE Match

Fuel Pump Top Cap.
Maintain the integrity of your Porsche's fuel delivery system with this OE Match Fuel Pump Top Cap, manufactured as a direct replacement. Produced to OE-style specifications, this top cap is designed to provide the correct fit and dependable sealing performance, helping to secure the fuel pump assembly while protecting the fuel system from contamination and ensuring reliable operation.

Fits:

• Porsche 356 1950-55
• Porsche 356A 1955-59
• Porsche 356B 1959-63  

Diagram Ref No 3

The fuel pump top cap is exposed to fuel vapours, engine vibration, heat, and environmental contaminants throughout its service life. Over time, the original cap can become worn, corroded, distorted, or damaged, affecting the secure installation of the fuel pump and associated sealing components. Replacing a deteriorated top cap helps restore the integrity of the fuel system and supports dependable fuel delivery. This OE Match component is ideal for routine maintenance, fuel system repairs, and Porsche restoration projects.  

What This Product Does:

• Secures the upper section of the fuel pump assembly.
• Helps maintain the integrity of the fuel delivery system.
• Supports correct sealing of the fuel pump installation.
• Protects the fuel system from dirt and contamination.
• Replaces worn, damaged, or corroded original components.
• Maintains reliable fuel pump installation and operation.
• Provides an OE-style fit and dependable quality.

Symptoms Of Wear Or Failure:

• Visible corrosion or damage to the top cap.
• Fuel seepage around the fuel pump assembly.
• Loose or insecure fuel pump installation.
• Distorted or damaged mounting surfaces.
• Difficulty securing the fuel pump correctly.
• Evidence of contamination around the fuel pump.
• Wear caused by age or repeated servicing.
• Age-related deterioration of the original component.

Why Replacement Matters:

• The fuel pump top cap is an important part of the fuel pump assembly, helping to secure the pump while maintaining a reliable seal within the fuel system. A worn or damaged top cap can compromise sealing, contribute to fuel leaks or contamination, and reduce the long-term reliability of the fuel delivery system.
• Replacing the fuel pump top cap restores secure installation and dependable sealing performance, helping to maintain safe and efficient fuel system operation. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match component provides the correct fit, dependable quality, and long-lasting durability, making it an excellent choice for Porsche maintenance, fuel system repairs, and restoration projects.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

61610841900

The product you are viewing cross references to these numbers

Performance Upgrade Chip 24-Pin – Euro Spec with SSI or Race/Performance Headers

Unlock the full potential of your 1987 Euro specification Porsche 911 Carrera 3.2 with this OE Match 24-pin Performance Upgrade Chip, specifically developed for cars fitted with SSI heat exchangers or race/performance headers.

 Fits:

• Porsche 911 1987 3.2L G50  

This dedicated calibration is designed for the Bosch Motronic DME used in 1987 Carrera 3.2 models equipped with a 24-pin EPROM. It is not a generic, one-size-fits-all programme. The software has been developed to suit the increased exhaust flow created by SSI systems, tubular manifolds and performance headers, allowing the engine to make better use of these upgrades through revised ignition and fuel mapping.

The result is stronger low and mid-range torque, sharper throttle response, smoother idle quality and more usable power throughout the rev range. The familiar hesitation below 4,000rpm is substantially reduced, with improved response available from as low as 1,500rpm.

For owners who have already upgraded the exhaust system, this chip is one of the most cost-effective ways to ensure those hardware modifications deliver their full performance benefit.

1987 Model Owners – How Do I Know Whether I Have a 24-Pin or 28-Pin Chip?
The 1987 model year was a transitional period during which Porsche changed from a 24-pin EPROM to a 28-pin EPROM.
The vehicle model year alone is therefore not enough to confirm compatibility.
The only reliable way to identify the correct version is to open the DME control unit and inspect the original chip.

The factory EPROM is typically:

• Black and rectangular
• Fitted with a matte foil sticker
• Marked with a number similar to 1267355xxx

Count the chip legs:

• 24 pins: this product is correct
• 28 pins: order the 28-pin version instead

Always confirm the pin count before ordering. Refer to the DME chip installation instructions for guidance on safely accessing and identifying the existing EPROM

Specifically Developed for the 1987 Euro 24-Pin DME

This Performance Upgrade Chip is intended for:

• 1987 Porsche 911 Carrera 3.2 Euro/ROW specification engines
• Bosch Motronic DME with 24-pin EPROM
• SSI heat exchangers
• Race headers
• Performance exhaust manifolds
• Standard or performance rear silencers
• Standard or mildly modified engines

The standard programme is calibrated for 95 RON premium unleaded fuel.

A dedicated 98 RON calibration is also available for customers who consistently use higher-octane fuel and want the ignition and fuel maps optimised accordingly.

What Does the Performance Upgrade Chip Do?

The chip replaces the original EPROM programme within the Bosch Motronic DME and revises the engine management calibration to suit the car’s exhaust configuration.

The software optimises:

• Ignition timing
• Full-load fuelling
• Part-throttle fuelling
• Throttle response
• Low-speed torque delivery
• Mid-range power
• High-rpm performance
• Idle stability
• Deceleration behaviour
• Compatibility with increased exhaust flow

The factory Motronic software was calibrated for the original exhaust system. When SSI heat exchangers or performance headers are installed, the engine can flow more air, but the standard DME programme cannot fully optimise that change.

This dedicated chip helps ensure the engine receives the correct fuelling and ignition strategy to support the freer-flowing exhaust.

Developed from the Ground Up

This calibration was not created by making a few basic changes to the original factory software.

The programme was re-engineered through hundreds of hours of code development, road testing and dynamometer evaluation across a wide range of Carrera 3.2 engines. This extensive testing has identified areas of performance, drivability and efficiency that are not addressed by generic aftermarket chips.

The wide range of available programmes allows the calibration to be matched to:

• Engine market specification
• Exhaust configuration
• Fuel octane
• Intake modifications
• Owner preference
• Overall engine specification

This ensures a more appropriate setup than a universal chip intended to work with every vehicle.

Stronger Low and Mid-Range Torque

One of the most noticeable improvements is the stronger torque delivery at low and medium engine speeds.

The revised calibration helps the engine respond from approximately 1,500rpm, reducing the need to constantly downshift and making the car feel more immediate in everyday driving.

Typical improvements include:

• Stronger acceleration from low rpm
• Increased mid-range pulling power
• Sharper response to small throttle inputs
• Reduced hesitation below 4,000rpm
• Improved overtaking performance
• Greater flexibility in higher gears
• More responsive corner-exit acceleration
• Improved throttle modulation during autocross and fast-road driving

The broader torque curve can make the vehicle feel considerably lighter and more energetic without changing the engine’s fundamental character.

Smoother Idle and Improved Drivability

The revised software also targets common Carrera 3.2 drivability concerns.

It can help reduce:

• Idle hunting
• Sub-idle rpm dipping during deceleration
• Hesitation when returning to idle
• Deceleration backfiring
• Uneven low-speed response
• Flat spots during part-throttle acceleration

This creates a smoother transition between idle, part throttle and full load, improving both urban drivability and performance use.

Expected Performance Gains

Typical claimed gains include:

• Approximately 6–8% increase in horsepower and torque across the powerband
• Around 12–16hp on otherwise standard engines
• Approximately 20 lb-ft of additional torque through areas of the rev range
• Around 10–20% improvement in part-throttle torque, horsepower and efficiency
• Stronger power delivery from 1,500rpm to the rev limit
• Potentially greater gains on engines with SSI systems, polished intake runners and other airflow improvements
• Up to approximately 20hp on suitably modified engines

In certain areas near the top of the rev range, gains may be substantially greater than the peak-to-peak figure because the revised software can reduce the power drop-off found with the standard calibration.

Actual results will vary according to engine condition, exhaust specification, induction setup, fuel quality, ambient conditions and dynamometer method.

Why SSI and Performance Headers Need Matching Software

SSI heat exchangers and race/performance headers improve exhaust gas flow by reducing restriction and improving scavenging.

However, the original DME remains programmed around the factory exhaust system. At full load, the Bosch Motronic system relies heavily on pre-programmed fuel and ignition maps. It cannot automatically make full use of major airflow changes.

A matched performance chip helps by:

• Supporting the increased exhaust flow
• Adding appropriate fuel under load
• Optimising ignition timing
• Improving engine response
• Strengthening high-rpm performance
• Reducing the limitations of the standard map
• Maximising the benefit of SSI or header installation

Without corresponding software changes, the full value of a performance exhaust system may not be realised.

Potential Fuel Economy Improvement

Although this chip is primarily a performance upgrade, the revised part-throttle and ignition mapping may also improve cruising efficiency.

Many customers report highway fuel economy improvements of approximately 10–15%, depending on vehicle condition, driving style, fuel quality and operating conditions.

These figures are customer-reported and should not be considered guaranteed.

Installation Recommendations

Professional installation is recommended.

Before ordering, confirm:

• The vehicle is a 1987 Euro/ROW Porsche 911 Carrera 3.2
• The DME contains a 24-pin EPROM
• The car is fitted with SSI or performance headers
• The preferred fuel programme is 95 RON or 98 RON
• All additional engine and exhaust modifications are declared

Before installation, inspect:

• Spark plugs
• Distributor cap and rotor arm
• Ignition leads
• Fuel injectors
• Fuel pressure
• Airflow meter
• Intake hoses and vacuum lines
• Valve clearances
• General engine service condition

A healthy engine and correctly functioning ignition and fuel systems are essential for achieving the intended results safely.y.

OE Match Performance Upgrade Chip ROW/Euro Spec with SSI or Race/Performance Headers

Unlock the full benefit of your upgraded exhaust system with this OE Match Performance Upgrade Chip, developed specifically for ROW and European specification Porsche 911 Carrera 3.2 models fitted with SSI heat exchangers or race/performance headers.

 Fits:

• Porsche 911 1984-1986 3.2L  

The factory Bosch Motronic DME calibration was designed around the airflow characteristics of the original exhaust system. When SSI heat exchangers, tubular manifolds or high-flow performance headers are installed, the engine can move more air, but the original software cannot fully optimise the revised exhaust flow. This purpose-developed chip recalibrates ignition timing, fuel delivery and throttle response to help the 3.2-litre flat-six make proper use of those modifications.

The result is a smoother idle, stronger low and mid-range torque, sharper throttle response and noticeably improved acceleration from as low as 1,500rpm. The familiar hesitation below 4,000rpm is significantly reduced, giving the engine a broader, more responsive and more usable powerband.

This is not a generic one-size-fits-all chip. The programme has been developed through extensive code revisions, road testing and dynamometer evaluation on a wide range of Carrera 3.2 engines. The calibration is tailored for ROW/Euro engines equipped with SSI or performance manifolds, helping to deliver dependable gains while preserving everyday drivability.

Specifically Developed for SSI and Performance Header Applications

This version is intended for Porsche 911 Carrera 3.2 models fitted with:

• SSI heat exchangers
• Race headers
• Performance exhaust manifolds
• Free-flow tubular headers
• Modified rear exhaust systems
• Standard or mildly uprated induction systems

The revised calibration takes account of the increased exhaust flow created by these components, helping the engine operate more efficiently across the rev range.

For ROW and Euro specification vehicles, the standard programme is calibrated for 95 RON premium unleaded fuel. A dedicated 98 RON version is also available for owners who consistently use higher-octane fuel and want the calibration optimised accordingly.

What Does the Performance Upgrade Chip Do?

The chip replaces the original EPROM programme inside the Bosch Motronic DME and revises key engine management parameters.

The calibration optimises:

• Ignition timing
• Full-load fuelling
• Part-throttle fuelling
• Throttle response
• Low-speed torque delivery
• Mid-range power
• Idle control
• Deceleration behaviour
• Rev-range performance
• Compatibility with increased exhaust flow

At full throttle, the Motronic system operates from its programmed fuel and ignition maps. Without revised software, performance exhaust modifications can be restricted by the original factory calibration. This chip provides the additional fuel and ignition optimisation required to make better use of SSI systems and high-flow headers.

Improved Low and Mid-Range Torque

One of the most noticeable benefits is the improvement in everyday performance.

The revised mapping delivers stronger torque from approximately 1,500rpm, making the car more responsive without requiring high engine speeds. Acceleration becomes more immediate, overtaking requires fewer downshifts and the engine pulls more strongly through the middle of the rev range.

Typical improvements include:

• Sharper throttle response
• Stronger low-rpm acceleration
• Improved mid-range torque
• Reduced hesitation below 4,000rpm
• More progressive power delivery
• Greater flexibility in higher gears
• Improved response during fast road and autocross driving

The car feels more eager and significantly lighter on its feet because the engine responds more quickly to small throttle inputs.

Smoother Idle and Improved Drivability

The proprietary calibration has also been developed to improve common Carrera 3.2 drivability characteristics.

It can help reduce:

• Idle hunting
• Sub-idle rpm dipping during deceleration
• Hesitation when returning to idle
• Deceleration backfiring
• Uneven part-throttle response
• Low-speed flat spots

The result is a more refined engine at idle and a smoother transition between closed throttle, part throttle and full acceleration.

Expected Performance Gains

Typical reported gains include:

• Approximately 6–8% increase in horsepower and torque across the powerband
• Around 12–16hp on otherwise standard engines
• Approximately 20 lb-ft of additional torque through portions of the rev range
• Around 10–20% improvement in part-throttle torque, horsepower and efficiency
• Stronger power delivery from 1,500rpm through to the rev limit
• Potentially greater gains on engines with SSI systems, polished intake runners and other airflow improvements

In selected areas of the rev range, particularly near 6,500rpm, gains may be substantially higher than the peak-to-peak figure because the revised calibration reduces the power drop-off found in the standard mapping.

Actual results vary depending on engine condition, fuel quality, exhaust specification, induction setup and dynamometer method.

Why Exhaust Modifications Need Matching Software

SSI heat exchangers and performance headers can substantially improve exhaust gas flow, but hardware changes alone do not automatically deliver their full potential.

The standard DME programme remains calibrated for the original exhaust system. Under full load, it follows pre-programmed fuelling and ignition values and cannot fully compensate for increased airflow.

A correctly matched chip helps by:

• Supplying appropriate fuel under load
• Optimising ignition timing
• Improving exhaust and induction compatibility
• Supporting stronger high-rpm performance
• Preventing the factory map from restricting upgraded hardware
• Maximising the performance value of SSI or header installation

This makes the chip one of the most cost-effective supporting modifications available for a Carrera 3.2 fitted with a freer-flowing exhaust system.

Potential Fuel Economy Improvement

Although developed primarily for performance, the revised part-throttle calibration can also improve cruising efficiency.

Many customers report a 10–15% improvement in highway fuel economy, depending on driving style, vehicle condition, fuel quality and operating conditions. These figures should be treated as user-reported results rather than guaranteed savings.

Benefits

Installing this OE Match Performance Upgrade Chip can provide:

• More usable horsepower
• Stronger acceleration
• Improved low-speed flexibility
• Greater mid-range performance
• Better response from SSI and performance headers
• Smoother idle quality
• Improved part-throttle operation
• A broader and more responsive powerband
• Potential motorway fuel economy improvements
• Excellent performance gain for the cost
• A more engaging and enjoyable driving experience

Installation and Ordering Recommendations

Professional installation is recommended.

Before ordering, confirm:

• The vehicle is a ROW or European specification Porsche 911 Carrera 3.2
• The car is fitted with SSI heat exchangers or race/performance headers
• The DME chip pin configuration is correct for the vehicle
• The preferred fuel calibration is 95 RON or 98 RON
• Any additional engine modifications are declared

Before installation, inspect:

• Spark plugs
• Distributor cap and rotor arm
• Ignition leads
• Fuel injectors
• Fuel pressure
• Airflow meter
• Intake hoses and vacuum lines
• Valve clearances
• Engine service condition

A healthy engine and correctly maintained fuel and ignition systems are essential for achieving the intended performance gains safely.

OE Match Performance Upgrade Chip 28-Pin - Euro Spec with Standard or Sport Rear Silencer

Unleash the full performance potential of your 1987-1989 Porsche 911 3.2 Carrera Euro Specification with this OE Match 28-pin Performance Upgrade Chip, developed specifically for Bosch Motronic DME systems equipped with the 28-pin EPROM. Suitable for vehicles fitted with either the standard rear silencer or a sport rear silencer, this bespoke ECU calibration transforms the way the legendary 3.2-litre air-cooled flat-six delivers its power.
 
Fits:

• Porsche 911 1987-1989 3.2L G50  

Unlike generic "one-size-fits-all" performance chips, this software has been developed entirely from the ground up. Following hundreds of hours of programming, extensive road testing and dyno development across more than one hundred Carrera 3.2 models, the result is a calibration that delivers significantly stronger torque, improved throttle response, smoother idle quality and proven horsepower gains throughout the entire rev range.

Whether your Porsche remains factory original or benefits from carefully selected performance modifications, this dedicated 28-pin chip delivers one of the highest horsepower-per-pound upgrades available while maintaining factory refinement and reliability.

Specifically Developed for 1987-1989 Euro Specification 28-Pin DME Cars

This calibration has been engineered exclusively for:

• 1987-1989 Porsche 911 Carrera 3.2 Euro/ROW Specification
• Bosch Motronic DME with 28-pin EPROM
• Standard rear silencer.
• Sport rear silencer.
• Standard engines.
• Mildly modified engines.

The standard calibration is optimised for 95 RON premium unleaded fuel.

For customers regularly using 98 RON premium fuel, an optional higher-octane calibration is available to safely maximise ignition advance and overall engine performance.

Developed from a Blank Slate

Rather than making minor alterations to the original Porsche software, this Performance Upgrade Chip has been completely re-engineered.

The revised calibration optimises:

• Ignition timing maps.
• Fuel delivery.
• Full-load enrichment.
• Part-throttle performance.
• Throttle response.
• Idle stability.
• Torque delivery.
• Deceleration characteristics.

Every aspect of the Motronic programme has been refined through extensive chassis dyno testing and real-world driving to extract previously untapped performance from the Carrera 3.2 engine.

Noticeably Improved Performance

The improvements extend far beyond peak horsepower.

Typical performance gains include:

• 6-8% increase in horsepower and torque throughout the powerband.
• Approximately 12-16 bhp increase on standard engines.
• Around 20 lb-ft increase in torque across much of the rev range.
• 10-20% improvement in part-throttle torque and engine efficiency.
• Significant gains approaching the top of the rev range, with improvements of up to 25-35 bhp around 6,500rpm under certain operating conditions. Stronger pulling power from as little as 1,500rpm.
• Elimination of the familiar flat spot below 4,000rpm.
• Improved acceleration all the way to the rev limiter.

Vehicles fitted with polished intake runners, induction upgrades or sports exhaust systems may achieve even greater gains as the revised software fully supports the increased airflow available from these modifications.

Improved Everyday Drivability

Peak power figures tell only part of the story.

Owners consistently report:

• Smoother idle quality.
• Virtually eliminated idle hunting.
• Reduced RPM dip during deceleration.
• Reduced overrun popping and backfiring.
• Sharper throttle response.
• Stronger low-speed torque.
• Improved overtaking performance.
• More responsive acceleration in every gear.
• Greater flexibility during everyday driving.

The improved torque delivery gives the impression that the vehicle has become significantly lighter, making the Carrera feel far more responsive throughout the rev range.

Optimised for Standard or Sport Rear Silencers

Many Porsche 911 owners install sports rear silencers expecting additional power, but the original Motronic software continues to use conservative ignition and fuelling strategies.

This calibration has been specifically developed to complement:

• Standard Porsche rear silencers.
• Performance rear silencers.
• Improved exhaust flow. 

By optimising ignition timing and fuelling to suit these upgrades, the engine is able to realise significantly greater performance than exhaust modifications alone.

Improved Fuel Efficiency

Performance gains do not necessarily come at the expense of economy.

With optimised ignition timing and more efficient part-throttle calibration, many owners report motorway fuel economy improvements of approximately 10-15%, depending on vehicle condition, fuel quality and driving style.

1987 Model Owners – 24-Pin or 28-Pin?
1987 was a transitional production year, during which Porsche changed from a 24-pin EPROM to a 28-pin version.
If you own a 1987 model, the only reliable way to determine which chip your vehicle requires is to inspect the DME control unit.
The original EPROM is a black rectangular chip fitted with a factory foil label carrying a part number similar to: 1267355xxx

Simply count the number of legs (pins):
24 pins – Order the 24-pin version.
28 pins – This product is correct.

Please refer to the chip installation guide before ordering if you are unsure which version your vehicle uses.

Benefits

Installing this OE Match Performance Upgrade Chip provides:

• Increased horsepower and torque.
• Sharper throttle response.
• Stronger acceleration.
• Improved low-speed flexibility.
• Smoother idle.
• Reduced hesitation and flat spots.
• Better compatibility with sports exhaust systems.
• Improved motorway fuel economy potential.
• Enhanced everyday drivability.
• Outstanding performance per pound invested.

Installation Recommendations

Professional installation is recommended.

Before fitting the Performance Upgrade Chip, Design911 recommends checking:

• Correct 28-pin DME compatibility.
• Ignition components.
• Spark plugs.
• Distributor cap and rotor arm.
• Fuel injectors.
• Fuel pressure.
• Airflow meter operation.
• Vacuum hoses for leaks.
• Valve clearances.
• General engine service condition.

Selecting the appropriate calibration for your fuel grade and engine specification will ensure optimum performance and long-term reliability.

Jack Support.
Support safe and correct vehicle lifting with this OE Match Jack Support, manufactured as a direct replacement for. Produced to OE-style specifications, these jack supports are designed to provide the correct fit and structural integrity, ensuring the factory jacking points remain secure and capable of supporting the vehicle during maintenance and repairs.

Fits:

• Porsche 911 1965-1968 2.0L / 912 SWB (F)
• Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)  

Diagram Ref No 2

Jack supports are exposed to road debris, moisture, salt, and impacts from incorrect lifting equipment. Over time they can become corroded, bent, weakened, or damaged, compromising the strength of the factory jacking points. Replacing worn or damaged jack supports restores the structural integrity of the lifting points, helping to ensure the vehicle can be raised safely. This OE Match component is ideal for accident repairs, corrosion restoration, bodywork repairs, routine maintenance, and Porsche restoration projects.  

What This Product Does:

• Provides a secure factory jacking point for lifting the vehicle.
• Restores the structural integrity of the original lifting location.
• Supports safe vehicle maintenance and repair procedures.
  
• Replaces corroded, bent, or damaged original jack supports.
• Helps distribute lifting loads correctly.
• Maintains the original design of the vehicle's underbody.
• Provides an OE-style fit and dependable quality.

Symptoms Of Wear Or Failure:

• Corrosion around the factory jacking points.
• Bent or distorted jack supports.
• Cracked or weakened metal.
• Difficulty locating or supporting the vehicle correctly during lifting.
• Previous accident or impact damage.
• Structural deterioration caused by rust.
• Evidence of poor previous repairs.
• Age-related deterioration of the original component.

Why Replacement Matters:

• The jack support is a structural component that provides a designated lifting point for safely raising the vehicle during servicing, tyre changes, and repairs. A corroded or damaged support can compromise lifting safety, potentially causing instability, body damage, or further structural deterioration if left unrepaired.
• Replacing the jack support restores the strength and integrity of the factory lifting point, ensuring safe maintenance while preserving the vehicle's structural condition. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match jack support provides the correct fit, dependable quality, and long-lasting durability, making it an excellent choice for Porsche maintenance, body repairs, corrosion restoration, and restoration projects.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

96450129

The product you are viewing cross references to these numbers

Performance Upgrade Chip – 24-Pin Chip with Standard or Sport Rear Silencer

Transform the performance and drivability of your 1987 Porsche 911 3.2 Carrera Euro Specification with this OE Match 24-pin Performance Upgrade Chip, specifically engineered for Bosch Motronic DME systems fitted with the 24-pin EPROM. Designed for cars equipped with either the standard rear silencer or a sport rear silencer, this bespoke ECU calibration unlocks the full potential of the legendary 3.2-litre flat-six while maintaining the smooth refinement and reliability expected from a Porsche.
 
Fits:

• Porsche 911 1987 3.2L G50  

Unlike generic replacement chips that apply universal ignition and fuel maps, this software has been developed from a completely blank programme. Hundreds of hours of coding, road testing and chassis dynamometer development across more than one hundred Carrera 3.2 models have resulted in one of the most thoroughly refined Motronic calibrations available.

The result is a noticeably smoother idle, significantly stronger low and mid-range torque, sharper throttle response, elimination of the characteristic sub-4,000rpm flat spot and measurable horsepower gains throughout the rev range.

1987 24-Pin or 28-Pin DME – Which Chip Do I Need?

1987 was a transitional production year, with Porsche changing from a 24-pin EPROM to a 28-pin EPROM during production.
The only reliable way to determine which version your vehicle requires is to remove the DME control unit and inspect the existing chip
The original EPROM is a black rectangular integrated circuit fitted with a factory foil label displaying a sequence of numbers similar to:1267355xxx

Count the number of legs (pins) on the chip:

• 24 pins – This product is correct.
• 28 pins – You require the 28-pin version.

Please refer to the DME chip installation guide before ordering if you are unsure.

Specifically Developed for 1987 24-Pin Euro Specification Cars

This version has been developed exclusively for:

1987 Porsche 911 Carrera 3.2 Euro/ROW specification 24-pin Bosch Motronic DME Standard rear silencer Sport rear silencer Manual transmission vehicles Standard or mildly modified engines

The default calibration is designed for 95 RON premium unleaded fuel.

For owners using 98 RON premium fuel, an optional dedicated calibration is available to maximise ignition advance and overall engine performance.

Why This Chip Is Different

Rather than modifying the factory programme, this calibration has been completely re-engineered to optimise every aspect of engine operation.

The revised software enhances:

• Ignition timing.
• Fuel delivery.
• Full-load enrichment.
• Part-throttle performance.
• Torque development.
• Throttle response.
• Idle stability.
• Deceleration characteristics.

Every map has been refined through extensive dyno development and real-world road testing to deliver measurable improvements across the entire rev range.

Performance Gains You Can Feel

The improvements extend far beyond peak horsepower.

Typical gains include:

• 6–8% increase in horsepower and torque across the powerband.
• Approximately 12–16 bhp increase on standard engines.
• Around 20 lb-ft increase in torque through much of the rev range.
• 10–20% increase in part-throttle torque and engine efficiency.
• Up to 25–35 bhp improvement around 6,500rpm in certain operating conditions.
• Stronger acceleration from just 1,500rpm.
• Elimination of the familiar hesitation below 4,000rpm.
• More responsive acceleration to the rev limiter.

Cars fitted with polished intake runners, sports silencers or improved induction systems may achieve even greater gains, as the revised calibration allows the engine to make full use of the additional airflow.

Dramatically Improved Drivability

Owners immediately notice improvements in everyday driving, including:

• Smoother idle.
• Virtually eliminated idle hunting.
• Reduced RPM dip during deceleration.
• Reduced overrun popping and backfiring.
• Sharper throttle response.
• Increased low-speed flexibility.
• Stronger mid-range acceleration.
• Improved overtaking performance.
• More progressive engine response.

The revised torque curve gives the impression that the car has become substantially lighter, making it more responsive in every driving situation.

Optimised for Standard or Sport Rear Silencers

Many Carrera owners fit sports rear silencers expecting substantial power gains, but the factory Motronic software continues to use conservative ignition and fuelling strategies.

This calibration has been specifically optimised for:

• Standard factory silencers.
• Performance rear silencers.
• Improved exhaust flow.

By optimising ignition timing and fuel delivery, the engine is able to fully exploit these upgrades while maintaining excellent drivability.

Improved Fuel Efficiency

While performance is the primary objective, optimised part-throttle calibration also improves engine efficiency.

Many owners report highway fuel economy improvements of approximately 10–15%, depending on vehicle condition, fuel quality and driving style.

Benefits

Installing this OE Match Performance Upgrade Chip provides:

• Increased horsepower.
• Stronger torque throughout the rev range.
• Sharper throttle response.
• Smoother idle quality.
• Reduced hesitation.
• Improved flexibility in everyday driving.
• Better compatibility with sports silencers.
• Faster overtaking performance.
• Potential motorway fuel economy improvements.
• One of the highest performance gains available per pound spent.

Installation Recommendations

Professional installation is recommended.

Before fitting the Performance Upgrade Chip, ensure:

• The correct 24-pin DME is fitted.
• Spark plugs are in good condition.
• Distributor cap and rotor arm are serviceable.
• Fuel injectors are operating correctly.
• Airflow meter is functioning correctly.
• No intake vacuum leaks are present.
• Valve clearances are correctly adjusted.
• Fuel pressure is within specification.
• The engine is fully serviced.

Selecting the correct fuel calibration for your chosen octane rating will ensure optimum performance and long-term reliability.

Catch For Front Lid.
Maintain the secure operation of your Porsche's front luggage compartment with this OE Match Front Lid Catch, manufactured as a direct replacement. Produced to OE-style specifications, this front lid catch is designed to provide the correct fit and reliable locking performance, ensuring the front lid remains securely latched while allowing smooth opening and closing.

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• Porsche 911 1975-1977 3.0L Turbo (930)
• Porsche 911 1978-1989 3.3L Turbo (930)
• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93  

Diagram Ref No 19

The front lid catch is subjected to repeated use, vibration, and exposure to moisture, dirt, and road contaminants. Over time, the original catch can become worn, corroded, or damaged, leading to poor latch engagement, difficulty closing the front lid, or an insecure locking mechanism. Replacing a worn catch restores dependable operation and helps protect the contents of the luggage compartment. This OE Match component is ideal for routine maintenance, repairs, and Porsche restoration projects.  

What This Product Does:

• Secures the front luggage compartment lid when closed.
• Provides reliable engagement with the front lid locking mechanism.
• Allows smooth opening and closing of the front lid.
• Helps prevent unwanted movement of the front lid while driving.
• Replaces worn, damaged, or corroded original catches.
• Supports safe and dependable operation of the luggage compartment.
• Provides an OE-style fit and dependable quality.

Symptoms Of Wear Or Failure:

• Difficulty latching the front lid.
• Loose or insecure front lid when closed.
• Excessive wear on the latch mechanism.
• Corrosion affecting the catch assembly.
• Misalignment preventing proper engagement.
• Sticking or inconsistent latch operation.
• Visible damage to the catch.
• Age-related deterioration of the original component.

Why Replacement Matters:

• The front lid catch is a vital part of the luggage compartment locking system, ensuring the front lid remains securely closed while driving and opens correctly when required. A worn or damaged catch can lead to poor latch engagement, rattles, difficulty opening or closing the lid, or in severe cases, an insecurely fastened front lid.
• Replacing the front lid catch restores smooth and reliable operation, improves safety, and helps preserve the correct alignment of the luggage compartment lid. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match front lid catch provides the correct fit, dependable quality, and long-lasting durability, making it an excellent choice for Porsche maintenance, repairs, and restoration projects.

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OE Match Performance Upgrade Chip – ROW/Euro Spec with Standard or Sport Rear Silencer

Unlock the hidden performance within your ROW/European specification Porsche 911 Carrera 3.2 with this OE Match Performance Upgrade Chip, specifically developed for Bosch Motronic DME-equipped cars fitted with either the standard rear silencer or a sport rear silencer.
 
Fits:

• Porsche 911 1984-1986 3.2L  

Unlike generic ECU chips that simply alter a few fuel or ignition values, this calibration has been completely developed from the ground up. Hundreds of hours of software development, extensive road evaluation and chassis dyno testing across more than one hundred Porsche 3.2 Carrera models have resulted in a highly refined engine management programme that transforms the way the iconic air-cooled flat-six performs.

The result is a smoother, stronger and significantly more responsive engine, delivering increased torque from as little as 1,500rpm, improved throttle response throughout the rev range and measurable horsepower gains—all while maintaining factory reliability when used with the recommended fuel grade.

Whether your Carrera is completely standard or fitted with a sports rear silencer, this bespoke calibration is designed to maximise the engine's true potential.

Specifically Developed for ROW / European Specification Cars

This version has been calibrated exclusively for European and Rest of World (ROW) Porsche 911 Carrera 3.2 models.

Unlike universal chips, the calibration has been optimised for:

• ROW / European engine specifications.
• Standard rear silencer.
• Sport rear silencer.
• Bosch Motronic DME management.
• Factory engine components.
• Mildly modified engines.

The standard programming is designed for 95 RON premium unleaded fuel.

For customers regularly using 98 RON fuel, an optional dedicated calibration is available to extract even greater performance while maintaining safe engine operation.

Developed Specifically for the Porsche 3.2 Carrera

The factory Motronic calibration was engineered to satisfy worldwide emissions legislation, varying fuel quality and production tolerances. While extremely reliable, it leaves considerable performance untapped.

This OE Match Performance Upgrade Chip completely re-engineers the original software by optimising:

• Ignition timing maps.
• Fuel delivery.
• Part-throttle fuelling.
• Full-load enrichment.
• Torque delivery.
• Throttle response.
• Idle control strategy.
• Deceleration characteristics.

Every calibration has been extensively refined through road and dyno testing to produce performance improvements that are immediately noticeable from the moment you drive away.

Noticeable Improvements in Everyday Driving

This upgrade transforms far more than peak horsepower.

Owners typically notice:

• Smoother idle quality.
• Virtually eliminated idle hunting.
• Reduced sub-idle RPM dip during deceleration.
• Reduced exhaust popping and backfiring on overrun.
• Sharper throttle response.
• Stronger acceleration from low engine speeds.
• Improved flexibility in everyday driving.
• More immediate engine response from just 1,500rpm.
• Elimination of the familiar flat spot below 4,000rpm.

The improved torque delivery gives the impression that the car has shed significant weight, making the Carrera feel substantially more eager throughout the rev range.

Proven Performance Gains

Typical gains include:

• 6–8% increase in horsepower and torque across the powerband.
• Approximately 12–16 bhp increase on a standard engine.
• Around 20 lb-ft improvement in torque through much of the rev range.
• 10–20% improvement in part-throttle torque and engine efficiency.
• Significant gains approaching the top of the rev range, with improvements of up to 25–35 bhp around 6,500rpm under certain operating conditions. Stronger acceleration from 1,500rpm through to the rev limiter.

Cars fitted with additional modifications such as polished intake runners or a performance exhaust system may achieve even greater gains, as the revised ignition and fuel mapping allows the engine to make full use of the increased airflow.

Optimised for Performance Exhaust Systems

Many Carrera owners install sports silencers expecting significant performance improvements, but the factory DME continues to use conservative ignition and fuelling maps.

This Performance Upgrade Chip is specifically calibrated to complement:

• Standard rear silencers.
• Sports rear silencers.
• Improved exhaust flow.
• Freer-breathing intake systems.

By optimising both ignition timing and fuelling, the engine is able to fully exploit these modifications, resulting in greater performance than exhaust upgrades alone.

Improved Fuel Efficiency

Performance and efficiency do not have to be mutually exclusive.

Thanks to improved ignition timing and more efficient part-throttle calibration, many owners report highway fuel economy improvements of approximately 10–15%, depending on driving style, vehicle condition and operating conditions.

Benefits

Installing this OE Match Performance Upgrade Chip provides:

• Increased horsepower and torque.
• Improved low-speed flexibility.
• Faster throttle response. Smoother idle.
• Better drivability in everyday traffic.
• More responsive overtaking performance.
• Enhanced compatibility with sports exhaust systems.
• Improved engine efficiency. Potential improvement in motorway fuel economy.
• Greater enjoyment every time you drive.

Installation Recommendations

Professional installation is recommended.

Before installing the Performance Upgrade Chip, Design911 recommends ensuring:

• Ignition components are in good condition.
• Spark plugs are correctly specified.
• Fuel injectors are clean and operating correctly.
• Fuel pressure is within specification.
• The airflow meter is functioning correctly.
• There are no intake air leaks.
• Valve clearances are correctly adjusted.
• Oxygen sensor (where fitted) is functioning correctly.
• The engine is fully serviced.

Selecting the correct software calibration for your fuel grade and engine specification will ensure maximum performance and long-term reliability.

Cylinder Head, Without Inlet/Outlet Valve. 
Restore engine performance and reliability with this OE Match Cylinder Head, Without Inlet/Outlet Valve, manufactured as a direct replacement. Produced to OE-style specifications, this replacement cylinder head is supplied without inlet or exhaust valves, providing the ideal foundation for a professional engine rebuild while allowing existing serviceable valves or new replacements to be installed as required.

Fits:

Diagram Ref No 2

The cylinder head forms a critical part of the engine, housing the combustion chamber, valve gear, spark plug, and associated components while sealing against the engine block. Over time, overheating, corrosion, cracking, valve seat wear, or damage caused by combustion can render the original cylinder head unsuitable for continued use. Replacing the cylinder head restores compression, combustion efficiency, and engine reliability. This OE Match component is an excellent choice for engine rebuilds, major repairs, and Porsche restoration projects.  

What This Product Does:

• Forms the upper section of the engine combustion chamber.
• Supports the inlet and exhaust valves.
• Provides correct sealing between the cylinder and cylinder head gasket.
• Restores proper engine compression and combustion efficiency.
• Provides accurate mounting for valve train components.
• Replaces cracked, damaged, or worn original cylinder heads.
• Provides an OE-style fit and dependable performance.

Symptoms Of Wear Or Failure:

• Loss of engine compression.
• Overheating resulting in cylinder head distortion.
• Cracks in the cylinder head casting.
• Coolant or oil leaks around the cylinder head.
• Excessive valve seat wear.
• Combustion gas leakage.
• Poor engine performance or misfiring.
• Age-related deterioration of the original component.

Why Replacement Matters:

• The cylinder head is fundamental to engine performance, providing the combustion chamber, supporting the valve train, and maintaining an effective seal between the engine block and the cylinder head gasket. A cracked, warped, or excessively worn cylinder head can result in compression loss, coolant or oil leaks, overheating, poor combustion, and potentially severe engine damage.
• Replacing the cylinder head restores the correct combustion chamber geometry, compression, and valve train alignment, ensuring reliable engine operation and long-term durability. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match cylinder head provides the correct fit, dependable performance, and lasting reliability, making it an excellent choice for Porsche maintenance, engine rebuilds, repairs, and restoration projects.

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Screw For Shift Rod Coupler.
Maintain precise and reliable gear selection with this OE Match Screw for Shift Rod Coupler, manufactured as a direct replacement. Produced to OE-style specifications, this fastening screw is designed to securely retain the shift rod coupler, ensuring accurate transmission of gear lever movement to the gearbox for smooth and dependable shifting.

Fits:

• Porsche 924 2.0L 1976-79
• Porsche 924 2.0L 1980-85
• Porsche 924 Turbo 2.0L 1979-81
• Porsche 924 Turbo 2.0L 1982-84
• Porsche 924 Carrera GT 2.0L 1981
• Porsche 924 Carrera GTS 2.0L 1982
• Porsche 924S 2.5L 1986-87
• Porsche 924S 2.5L 1988
• Porsche 944 2.5L 8V 1982-87
• Porsche 944 2.7L 8V 1988-89
• Porsche 944S 2.5L 16V 1987-88
• Porsche 944S2 3.0L 16V 1989-91
• Porsche 944 Turbo 2.5L 8V 1985-88
• Porsche 944 Turbo 2.5L 8V 1989-91
• Porsche 944 Turbo S 2.5L 8V 1988
• Porsche 968 3.0L 1992-94
• Porsche 968 Sport 3.0L 1994-95
• Porsche 968 CS 3.0L 1993-95
• Porsche 968 Turbo S 3.0L 1993-94  

Diagram Ref No 12

Although small, the shift rod coupler screw is a critical component of the gear linkage assembly. It secures the coupler to the selector shaft and helps maintain correct alignment of the gear change mechanism. Over time, repeated vibration, corrosion, incorrect installation, or thread wear can compromise the fixing, resulting in excessive play, poor gear engagement, or difficulty selecting gears. Replacing this screw during gearbox servicing or linkage refurbishment helps restore the integrity of the gearshift mechanism. This OE Match component is ideal for routine maintenance, repairs, and Porsche restoration projects.  

What This Product Does:

• Secures the shift rod coupler to the selector shaft.
• Maintains accurate alignment of the gear linkage.
• Ensures precise transmission of gear lever movement.
• Helps provide smooth and reliable gear selection.
• Replaces worn, damaged, or corroded original fixings.
• Supports correct operation of the gearshift mechanism.
• Provides an OE-style fit and dependable performance.

Symptoms Of Wear Or Failure:

• Excessive play in the gear lever.
• Difficulty selecting gears.
• Loose or misaligned shift rod coupler.
• Worn or damaged screw threads.
• Corrosion affecting the fixing.
• Gear linkage movement becoming inconsistent.
• Missing or damaged original fixing screw.
• Age-related deterioration of the original component.

Why Replacement Matters:

• The shift rod coupler screw is essential for securely fastening the gear linkage and maintaining accurate gear selection. A loose, worn, or damaged fixing can allow movement within the coupler assembly, leading to imprecise shifting, increased wear of surrounding components, and unreliable gearbox operation.
• Replacing the shift rod coupler screw restores a secure connection within the gear linkage, ensuring precise gear changes and dependable transmission performance. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match component provides the correct fit, reliable performance, and long-lasting durability, making it an excellent choice for Porsche maintenance, repairs, and restoration projects.

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Inner Door Lock Pull Surround.
Restore the original appearance and finish of your Porsche interior with this OE Match Inner Door Lock Pull Surround, manufactured as a direct replacement. Produced to OE-style specifications, this replacement trim surround is designed to fit neatly around the interior door lock pull, providing the correct fit, finish, and support while maintaining the factory appearance of the door trim.

Fits:

Diagram Ref No 19

The inner door lock pull surround is a visible interior trim component that is exposed to frequent contact during everyday use. Over time, it can become cracked, scratched, faded, or damaged through age, wear, or repeated operation of the door lock. Replacing a worn or damaged surround restores a clean, factory-style appearance and helps complete a high-quality interior refurbishment. This OE Match component is ideal for routine maintenance, repairs, and Porsche restoration projects.  

What This Product Does:

• Provides a neat finishing trim around the interior door lock pull.
• Supports the correct positioning of the lock pull within the door trim.
• Restores the original appearance of the door panel.
• Replaces worn, cracked, or damaged original surrounds.
• Helps protect the surrounding door trim from wear.
• Completes interior refurbishment and restoration work.
• Provides an OE-style fit and dependable quality.

Symptoms Of Wear Or Failure:

• Cracked or broken trim surround.
• Scratches, scuffs, or faded finish.
• Loose or poorly fitting surround.
• Damage around the door lock pull opening.
• Broken retaining tabs or mounting points.
• Excessive wear from repeated use.
• Cosmetic deterioration affecting the interior appearance.
• Age-related deterioration of the original component.

Why Replacement Matters:

• The inner door lock pull surround provides both a protective and decorative finish around the interior door lock mechanism, helping to maintain the appearance and integrity of the door trim. A worn or damaged surround can leave the interior looking tired and may no longer fit securely within the door panel.
• Replacing the inner door lock pull surround restores the original appearance, ensures a secure fit, and enhances the overall presentation of the vehicle's interior. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match component provides the correct fit, dependable quality, and long-lasting durability, making it an excellent choice for Porsche maintenance, repairs, and restoration projects.

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Interior Door Handle Shell.
Restore the appearance and functionality of your Porsche interior with this OE Match Interior Door Handle Shell, manufactured as a direct replacement. Produced to OE-style specifications, this replacement handle shell is designed to fit the original interior door handle assembly, providing the correct appearance, fit, and finish while maintaining reliable everyday operation.

Fits:

Diagram Ref No 21

The interior door handle shell is subject to constant use and can become worn, scratched, cracked, or damaged over time. Exposure to sunlight, repeated handling, and general wear can leave the original component looking tired and detract from the overall appearance of the cabin. Replacing a damaged handle shell restores the factory-style finish and helps preserve the quality of the interior. This OE Match component is ideal for routine maintenance, interior refurbishment, repairs, and Porsche restoration projects.  

What This Product Does:

• Restores the appearance of the interior door handle assembly.
• Provides a protective outer housing for the door handle.
• Maintains correct fit and alignment within the door trim.
• Replaces worn, cracked, or damaged original handle shells.
• Restores the factory-style appearance of the vehicle interior.
• Supports smooth operation of the interior door handle assembly.
• Provides an OE-style fit and dependable quality.

Symptoms Of Wear Or Failure:

• Cracked or broken handle shell.
• Scratches, scuffs, or worn surface finish.
• Loose or poorly fitting handle shell.
• Damage caused by repeated use.
• Faded or deteriorated appearance.
• Broken mounting points or retaining clips.
• Cosmetic deterioration affecting the cabin presentation.
• Age-related deterioration of the original component.

Why Replacement Matters:

• The interior door handle shell protects the handle assembly while contributing to the overall appearance and finish of the vehicle's interior. A worn or damaged shell can detract from the cabin's presentation and may no longer fit securely, affecting both appearance and functionality.
• Replacing the interior door handle shell restores the original look of the door trim while ensuring the handle assembly remains properly protected and supported. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match component provides the correct fit, dependable quality, and long-lasting durability, making it an excellent choice for Porsche maintenance, repairs, and restoration projects.

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Inner Door Release.
Restore smooth and reliable interior door operation with this OE Match Inner Door Release, manufactured as a direct replacement. Produced to OE-style specifications, this replacement inner door release is designed to provide dependable operation of the door latch mechanism, allowing the door to be opened safely and effortlessly from inside the vehicle.

Fits:

Diagram Ref No 14

The inner door release is used every time the vehicle is entered or exited, making it susceptible to wear through repeated use. Over time, the lever mechanism can become loose, worn, cracked, or damaged, reducing its effectiveness and potentially preventing the door from opening correctly. Replacing a worn or damaged inner door release restores the original functionality and appearance of the door trim, making this OE Match component ideal for routine maintenance, repairs, and Porsche restoration projects.  

What This Product Does:

• Operates the interior door latch mechanism.
• Allows the door to be opened safely from inside the vehicle.
• Restores smooth and reliable door release operation.
• Replaces worn, damaged, or broken original handles.
• Maintains correct operation of the interior door mechanism.
• Restores the original appearance of the door trim.
• Provides an OE-style fit and dependable performance.

Symptoms Of Wear Or Failure:

• Difficulty opening the door from inside.
• Loose or excessive movement in the release lever.
• Cracked, broken, or damaged door release handle.
• Door release fails to fully operate the latch.
• Sticking or inconsistent lever operation.
• Excessive wear to the original mechanism.
• Cosmetic deterioration affecting the interior appearance.
• Age-related deterioration of the original component.

Why Replacement Matters:

• The inner door release is an essential part of the vehicle's door opening mechanism, allowing occupants to exit the vehicle safely while providing smooth and reliable operation of the door latch. A worn or damaged release can make opening the door difficult, reduce convenience, and compromise safe vehicle exit.
• Replacing the inner door release restores dependable operation, improves interior functionality, and maintains the original appearance of the door trim. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match component provides the correct fit, dependable performance, and long-lasting durability, making it an excellent choice for Porsche maintenance, repairs, and restoration projects.

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Wheel Mounting Bolt.
Restore safe and secure wheel fitment with this OE Match Wheel Mounting Bolt, manufactured as a direct replacement. Produced to OE-style specifications, this high-quality wheel bolt is engineered to provide the correct thread engagement and clamping force required to securely fasten the wheel to the hub, ensuring safe and reliable vehicle operation.
 
Fits:

• Porsche 356 1950-55
• Porsche 356A 1955-59
• Porsche 356B 1959-63
• Porsche 356C 1963-65  

Wheel mounting bolts are critical safety components that experience repeated tightening and removal during routine tyre changes, brake servicing, and wheel maintenance. Over time, bolts can become corroded, suffer thread damage, stretch through incorrect torque application, or develop rounded heads from improper tool use. This OE Match replacement restores factory-style fitment and dependable performance, making it ideal for routine maintenance, repairs, and Porsche restoration projects.  

What This Product Does:

• Secures the wheel firmly to the hub assembly.
• Provides the correct thread engagement and clamping force.
• Maintains safe wheel retention under all driving conditions.
• Supports accurate wheel alignment on the hub.
• Replaces worn, damaged, or corroded original wheel bolts.
• Restores safe and reliable wheel installation.
• Provides an OE-style fit and dependable performance.

Symptoms Of Wear Or Failure:

• Corroded or heavily rusted wheel bolts.
• Damaged or stripped threads.
• Rounded or worn bolt heads.
• Difficulty achieving the correct tightening torque.
• Stretched or overtightened wheel bolts.
• Signs of thread damage in the bolt.
• Damage caused during previous wheel removal.
• Age-related deterioration of the original fasteners.

Why Replacement Matters:

• The wheel mounting bolt is a vital safety component that secures the wheel to the hub with the correct clamping force. A damaged, corroded, stretched, or incorrectly fitted bolt can compromise wheel retention, causing uneven clamping, vibration, damaged threads, or, in severe cases, wheel fastening failure.
• Replacing worn or damaged wheel mounting bolts restores safe wheel attachment and helps maintain the correct factory-style clamping performance. Manufactured as a direct replacement for the original component and produced to OE-style specifications, this OE Match wheel mounting bolt provides the correct fit, dependable strength, and long-lasting durability, making it an excellent choice for Porsche maintenance, repairs, and restoration projects.

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LONG Brake Wheel Mounting Bolt, 40MM.
Restore safe and secure wheel installation with this OE Match Long Brake Wheel Mounting Bolt, 40mm, manufactured as a direct replacement. Produced to OE-style specifications, this precision-engineered 40mm wheel bolt provides the correct thread engagement and clamping force required to securely fasten the wheel to the hub. It is designed for Porsche models requiring a longer mounting bolt, including applications with specific brake assemblies, factory-approved wheel spacers, or wheels that require increased bolt length.

Fits:

• Porsche 356 1950-55
• Porsche 356A 1955-59
• Porsche 356B 1959-63
• Porsche 356C 1963-65  

As a critical fastening component, the wheel mounting bolt ensures the wheel and brake assembly remain securely attached to the hub under all driving conditions. Over time, wheel bolts can become corroded, suffer thread damage, stretch through repeated incorrect tightening, or develop rounded heads from improper tool use. This OE Match replacement restores factory-style fitment, safety, and reliability, making it ideal for routine maintenance, repairs, and Porsche restoration projects.  

What This Product Does:

• Secures the wheel safely to the hub assembly.
• Provides the correct 40mm thread engagement where specified.
• Delivers the correct clamping force between the wheel and hub.
• Supports vehicles requiring longer wheel mounting bolts.
• Replaces worn, damaged, or corroded original fasteners.
• Ensures safe wheel retention under all driving conditions.
• Provides an OE-style fit and dependable performance.

Symptoms Of Wear Or Failure:

• Corroded or heavily rusted wheel bolts.
• Damaged or stripped threads.
• Rounded or worn bolt heads.
• Difficulty achieving the correct tightening torque.
• Stretched or overtightened wheel bolts.
• Incorrect bolt length fitted during previous repairs.
• Signs of damage after repeated wheel removal.
• Age-related deterioration of the original fasteners.

Why Replacement Matters:

• The wheel mounting bolt is a critical safety component that provides the clamping force required to securely fasten the wheel to the hub. A damaged, corroded, stretched, or incorrectly sized bolt can compromise wheel retention, resulting in uneven clamping, vibration, damaged threads, or, in severe cases, wheel fastening failure.
• Replacing worn or incorrect wheel mounting bolts restores safe wheel attachment and ensures the correct factory-style fit and clamping performance. Manufactured as a direct replacement for the original component and produced to OE-style specifications, this OE Match 40mm long brake wheel mounting bolt provides reliable strength, precise fitment, and long-lasting durability, making it an excellent choice for Porsche maintenance, repairs, and restoration projects.

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Horn Button Bushing For Steering Wheel.
Restore the secure fit and smooth operation of your Porsche steering wheel horn button with this OE Match Horn Button Bushing, manufactured as a direct replacement. Produced to OE-style specifications, this precision-engineered bushing provides the correct support and location for the horn button assembly, ensuring reliable horn operation and maintaining the original feel and fit of the steering wheel controls.
 
Fits:

• Porsche 911 1985-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• Porsche 911 1978-1989 3.3L Turbo (930)
• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 924 2.0L 1976-79
• Porsche 924 2.0L 1980-85
• Porsche 924 Turbo 2.0L 1979-81
• Porsche 924 Turbo 2.0L 1982-84
• Porsche 924 Carrera GT 2.0L 1981
• Porsche 924 Carrera GTS 2.0L 1982
• Porsche 924S 2.5L 1986-87
• Porsche 924S 2.5L 1988
• Porsche 944 2.5L 8V 1982-87
• Porsche 944 2.7L 8V 1988-89
• Porsche 968 3.0L 1992-94
• Porsche 968 Sport 3.0L 1994-95
• Porsche 968 CS 3.0L 1993-95
• Porsche 968 Turbo S 3.0L 1993-94
• Porsche 928 4.5L 1978-82
• Porsche 928S 4.7L 1981-83
• Porsche 928S2 4.7L 1984-86
• Porsche 928S4 5.0L 1987-92 

 
Diagram Ref No 40

The horn button bushing is a small but essential component that cushions and locates the horn button within the steering wheel. Over time, the original bushing can become brittle, worn, cracked, or distorted due to age and repeated use, leading to a loose horn button or inconsistent horn operation. This OE Match replacement restores proper support and dependable functionality, making it ideal for routine maintenance, repairs, and Porsche restoration projects.  

What This Product Does:

• Supports and locates the steering wheel horn button.
• Maintains correct alignment of the horn button assembly.
• Helps ensure reliable horn activation.
• Reduces unwanted movement and vibration.
• Restores the original fit and feel of the steering wheel controls.
• Replaces worn, damaged, or deteriorated original bushings.
• Provides an OE-style fit and long-lasting performance.

Symptoms Of Wear Or Failure:

• Loose or poorly fitting horn button.
• Intermittent horn operation.
• Excessive movement of the horn button.
• Cracked, brittle, or missing bushing.
• Rattling from the steering wheel centre.
• Inconsistent horn button feel when pressed.
• Difficulty securing the horn button correctly.
• Age-related deterioration of the original component.

Why Replacement Matters:

• The horn button bushing is a vital component that supports and positions the horn button within the steering wheel. A worn or damaged bushing can allow excessive movement, cause inconsistent horn operation, and detract from the original feel of the steering wheel controls.
• Replacing the horn button bushing restores secure horn button fitment, dependable horn operation, and the correct factory-style appearance. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match component provides the correct fit, reliable performance, and long-lasting durability, making it an ideal choice for Porsche maintenance, repairs, and restoration projects.

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