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Fuel Injectors
Reference numbers: 357972741A, 37906240.
Fits:
Porsche 924 S
Porsche 944
Porsche 968
Porsche 928
Description:
This repair kit is used to overhaul the plugs for the injectors. As a rule, the clips break off at the plugs after the years and the rubber grommet is cracked by its kinked position on the valve. As a result, moisture penetrates to the plug contacts and cause them to corrode. If you do not want to procure a completely new engine wiring harness right away, you can use this repair kit to replace the plug-in contacts in the original way.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
5109
The product you are viewing cross references to these numbers
- 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
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Shop Securely
12 Month Warranty
Worldwide Delivery
Express Delivery
Fuel Injector Connector Protective Rubber Boot
Sold each
High-quality protective rubber boot designed for the fuel injector connector on Porsche 924S, 944, and 928 models, providing essential protection for the electrical connection.
This rubber boot fits over the injector connector, shielding
it from heat, moisture, dirt, and engine bay contaminants, helping to maintain
reliable electrical contact and prevent premature wear or failure.
Fits:
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Diagram ref no 2
Sold individually, this component is ideal for replacing cracked, hardened, or missing boots during maintenance or restoration of the fuel injection system.
Key Features
• Protective rubber boot for fuel injector connector
• Suitable for Porsche 924S, 944, and 928
• Shields electrical connections from contaminants
• Helps maintain reliable injector operation
• Flexible, heat-resistant rubber construction
• OEM-style fit and appearance
• Ideal for restoration and repair work
• Sold individually
Function and Purpose
This rubber boot plays a key role in protecting injector wiring.
It helps to:
• Protect electrical connections from dirt and moisture
• Reduce risk of corrosion and electrical faults
• Maintain consistent injector signal reliability
• Extend lifespan of wiring connectors
• Support overall engine performance
Why Replace Injector Connector Boots
Over time, rubber components deteriorate due to heat and exposure.
Common issues include:
• Cracked or brittle rubber
• Missing or damaged boots
• Exposure of connectors to contaminants
• Increased risk of electrical faults
Replacing worn boots helps ensure reliable fuel injection system performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94461212802
The product you are viewing cross references to these numbers
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Shop Securely
12 Month Warranty
Worldwide Delivery
Fuel Injector Connector Protective Rubber Boot
Sold each
High-quality protective rubber boot designed for the fuel injector connector on Porsche 924S, 944, and 928 models, providing essential protection for the electrical connection.
This rubber boot fits over the injector connector, shielding
it from heat, moisture, dirt, and engine bay contaminants, helping to maintain
reliable electrical contact and prevent premature wear or failure.
Fits:
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Diagram ref no 2
Sold individually, this component is ideal for replacing cracked, hardened, or missing boots during maintenance or restoration of the fuel injection system.
Key Features
• Protective rubber boot for fuel injector connector
• Suitable for Porsche 924S, 944, and 928
• Shields electrical connections from contaminants
• Helps maintain reliable injector operation
• Flexible, heat-resistant rubber construction
• OEM-style fit and appearance
• Ideal for restoration and repair work
• Sold individually
Function and Purpose
This rubber boot plays a key role in protecting injector wiring.
It helps to:
• Protect electrical connections from dirt and moisture
• Reduce risk of corrosion and electrical faults
• Maintain consistent injector signal reliability
• Extend lifespan of wiring connectors
• Support overall engine performance
Why Replace Injector Connector Boots
Over time, rubber components deteriorate due to heat and exposure.
Common issues include:
• Cracked or brittle rubber
• Missing or damaged boots
• Exposure of connectors to contaminants
• Increased risk of electrical faults
Replacing worn boots helps ensure reliable fuel injection system performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94461212802
The product you are viewing cross references to these numbers
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche 911
Porsche 996
Porsche 924S
Porsche 944
Porsche 968
Description:
With this special tool, the filters of the injectors can be removed quickly, cleanly and effectively. In addition, the tool has a centering syringe on the head side, with which the new filter can be pressed straight into the injection nozzle without tilting.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
5167
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- 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 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- 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
Shop Securely
12 Month Warranty
Worldwide Delivery
Express Delivery
Fuel Injectors – Precision Fuel Delivery for Porsche Performance and Efficiency
Fuel injectors are a crucial component in your Porsche’s engine management system, ensuring the precise amount of fuel is delivered to each cylinder for clean, efficient combustion. A properly functioning injector optimises power output, throttle response, and fuel economy — maintaining the performance standards Porsche is known for.
At Design911, we offer a comprehensive range of fuel injectors designed for Porsche models old and new — from air-cooled classics to the latest turbocharged engines. Built to manufacturer-quality standards using advanced materials and precision nozzles, our injectors ensure accurate fuel atomisation, consistent spray patterns, and long-term durability under extreme temperatures and pressures.
Whether you’re restoring a 911, maintaining a Cayman, or upgrading for performance driving, our injectors are engineered to deliver clean, efficient combustion and consistent engine response.
What Do Fuel Injectors Do?
Fuel injectors are electronically controlled valves that deliver precise amounts of pressurised fuel into the combustion chamber or intake manifold.
Core Functions:
- Atomise
and inject fuel for efficient combustion.
- Ensure
consistent air-fuel ratio across all cylinders.
- Improve engine responsiveness, power, and economy.
- Support emissions control by maintaining clean, complete fuel burn.
Every Porsche engine relies on its injectors for accurate fuel delivery — a vital factor in maintaining both performance and efficiency.
Why Do Fuel Injectors Fail?
Fuel injectors are exposed to heat, pressure, and fuel impurities, making them prone to gradual wear or clogging over time.
Common Causes of Failure Include:
- Fuel
contamination, leading to clogging or restricted flow.
- Carbon
build-up on the nozzle tips, disrupting spray pattern.
- Electrical
or coil failure, affecting signal timing.
- Internal
leaks due to seal deterioration or corrosion.
- Ethanol degradation, which can damage internal components.
Symptoms of injector failure include rough idling, poor acceleration, increased fuel consumption, misfires, or difficulty starting — all signs of inconsistent fuel delivery.
Why Replace with
Precision-Engineered Fuel Injectors?
Replacing worn or clogged injectors restores proper fuel
delivery, maximising power, smoothness, and efficiency. Our performance-grade,
direct-fit injectors are designed to provide consistent fuel flow,
superior atomisation, and long service life.
Key Benefits:
- Restores power and throttle response.
- Improves fuel economy and engine smoothness.
- Prevents misfires, stalling, and hard starts.
- Reduces emissions through cleaner combustion.
- Crafted from high-quality, corrosion-resistant materials.
- Direct-fit design for easy installation and long-term reliability.
Perfect for preventative maintenance or performance upgrades, these injectors deliver manufacturer-level precision and durability for every Porsche engine.
Highlights:
- High-quality
replacement fuel injectors for Porsche models.
- Precision-engineered
nozzles for accurate atomisation.
- Tested for pressure stability and spray accuracy.
- Improves power, efficiency, and emissions performance.
- Compatible with classic and modern Porsche engines.
- Essential for restorations, rebuilds, and tuning projects.
-
Fuel Tank & Parts
-
Fuel Filler Cap / Neck / Flap
-
Fuel Gauge / Level Sender
-
Fuel Filter and Fittings
-
Fuel Pumps
-
Pressure Valves / Sensors / Dampers / Regulators
-
Bleeder / Shut-off Valves
-
Fuel Lines & Breather Hoses
-
Fuel Expansion Tank
-
Carbon Canister
-
Fuel Carry Cans
-
Fuel Injection / Collection Rail
-
Fuel Distributor / Metering Head
Monday-Friday: 8.30am - 5.30pm (GMT)
Saturday: Closed
Sunday: Closed