Fuel Lines & Breather Hoses

Fuel line clamp.

Fits:
Porsche 911 1969-71

Diagram ref no 31

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91611033000

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Fuel line clamp.

Fits:
Porsche 911 1969-71

Diagram ref no 31

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91611033000

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Fuel line clamp. Holds fuel lines between MFI stacks, 4 per car. Priced each.

Fits:
Porsche 911 1969-71

Diagram ref no 31

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91611033000

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Fuel-Injection pipe support bracket.
The Injector pipe bracket is a precision-manufactured support bracket designed to secure the fuel injection or injector supply pipes on Porsche 911 models. This bracket locates the injector line firmly, prevents vibration-induced wear, ensures correct routing, and helps maintain system integrity. Its replicates the factory form, fits directly into the mounting points, and offers dependable durability for OE-type fitment.

Fits:
Porsche 911 1969 - 1977

Diagram ref no 11

• Function: Secures injection or fuel supply pipe to head or pump assembly
• Position: Engine – injection system, cylinder head / injection pump fitting
• Benefits: Reinforces fuel-injection plumbing, prevents vibration wear, ensures proper alignment

Fuel-injection piping and brackets are subject to constant engine vibration, heat, and mechanical stress. Over time the original bracket may become loosened, corroded, bent or fatigued, resulting in unstable pipe support, potential wear, or fuel-leak risk.

Replace this bracket when:
•  Performing a fuel-injection system repair or service
•  You observe loose or vibrating injection lines
•  The original bracket shows corrosion, bending or missing alignment
•  Re-installing injection plumbing after head or pump removal

Installing a new Injector Pipe Bracket ensures secure pipe routing, reduced vibration wear, and continued safe operation of the injection system in your Porsche 911.

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91111033300

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Fuel Line For Warm Up Valve.

The Fuel Line for Warm Up Valve is an OEM-spec Porsche fuel line designed for classic air-cooled Porsche 911 models equipped with Bosch CIS / K-Jetronic mechanical fuel injection. This line connects to the warm-up valve / warm-up regulator and plays an essential role in maintaining correct fuel routing and pressure control during cold starts and engine warm-up.

Fits:

• Porsche 911 T-K 1972-1973 2.4L WB (F)
• Porsche 911 1974-1976 2.7L / 1976 3.0 Carrera

Fits On To Diagram Ref No 28

In CIS fuel systems, the warm-up regulator helps manage control pressure so the engine can start cleanly when cold and transition smoothly to normal running conditions as temperatures rise. A properly functioning fuel line is critical to ensure stable pressure and leak-free operation. Over time, original fuel lines can degrade from age, heat exposure, and vibration, leading to cracking, seepage, or weakened fittings.

What This Product Does:

• Carries fuel to/from the warm-up valve / warm-up regulator
  
• Helps regulate control pressure in CIS injection systems
  
• Supports smooth cold start operation and warm running performance
• Ensures fuel is delivered through the correct metering path
• Maintains leak-free, correct routing using OEM-style fittings

Symptoms Of A Failing Fuel Line:

• Fuel smell in the engine bay
• Visible fuel seepage or dampness around fittings
• Cracked or aged line material (especially on older CIS cars)
• Hard starting or poor cold running (if pressure is affected)
• Rough idle during warm-up
• Potential fuel leaks creating a fire risk

Why Replacement Matters:

• Prevents dangerous fuel leaks in the engine bay
  
• Maintains correct CIS fuel pressure regulation for proper drivability
• Supports reliable cold starts and smoother warm-up operation
• Helps avoid engine running issues caused by pressure loss
• Preserves safety and originality in classic Porsche maintenance

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91111009701

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Fuel Line For Warm Up Valve.

The Fuel Line for Warm Up Valve is a fuel line designed for classic air-cooled Porsche 911 models equipped with Bosch CIS / K-Jetronic mechanical fuel injection. This line connects to the warm-up valve / warm-up regulator and plays an essential role in maintaining correct fuel routing and pressure control during cold starts and engine warm-up.

Fits:

• Porsche 911 T-K 1972-1973 2.4L LWB (F)
• Porsche 911 1974-1976 2.7L / 1976 3.0 Carrera

Fits On To Diagram Ref No 28

In CIS fuel systems, the warm-up regulator helps manage control pressure so the engine can start cleanly when cold and transition smoothly to normal running conditions as temperatures rise. A properly functioning fuel line is critical to ensure stable pressure and leak-free operation. Over time, original fuel lines can degrade from age, heat exposure, and vibration, leading to cracking, seepage, or weakened fittings.

What This Product Does:

• Carries fuel to/from the warm-up valve / warm-up regulator
  
• Helps regulate control pressure in CIS injection systems
  
• Supports smooth cold start operation and warm running performance
• Ensures fuel is delivered through the correct metering path
• Maintains leak-free

Symptoms Of A Failing Fuel Line:

• Fuel smell in the engine bay
• Visible fuel seepage or dampness around fittings
• Cracked or aged line material (especially on older CIS cars)
• Hard starting or poor cold running (if pressure is affected)
• Rough idle during warm-up
• Potential fuel leaks creating a fire risk

Why Replacement Matters:

• Prevents dangerous fuel leaks in the engine bay
  
• Maintains correct CIS fuel pressure regulation for proper drivability
• Supports reliable cold starts and smoother warm-up operation
• Helps avoid engine running issues caused by pressure loss
• Preserves safety in classic Porsche maintenance

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91111009701

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Fuel line from warm-up regulator to fuel distributor.



Fits:
Porsche 911 SC 1981-83

Click 'Zoom in' for large parts diagram.
Diagram ref no 51

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93011049402

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Return fuel line in centre tunnel. 
This is an original Porsche metal fuel line routed through the centre tunnel of early 911/912 models. It carries fuel or return flow as part of the vehicle’s original fuel-system layout.

Fits:
Porsche 911 E / 911S - 1969 to to 1971 (2 required per car)
Porsche 911T 1969 to 1969 (1 required per car)
Porsche 911 - 1972 to 1973 (1 required per car)

Diagram ref no 25 (for 911T, 911) / 18 (for 911E/S)

Runs from the fuel tank area through the centre tunnel; often termed a “control line” or “return line.”

With age the original metal line can suffer from corrosion, fatigue or damage - leading to fuel leaks or vapour loss, which pose safety risks. Installing the correct genuine Porsche line ensures the system maintains its original routing, integrity and reliable fuel delivery.

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90110853101

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Return fuel line in centre tunnel. 
Metal fuel line that runs the length of the centre tunnel.

Fits:
Porsche 911 E / 911S - 1969 to to 1971 (2 required per car)
Porsche 911T 1969 to 1969 (1 required per car)
Porsche 911 - 1972 to 1973 (1 required per car)

Diagram ref no 25 (for 911T, 911) / 18 (for 911E/S)

This metal fuel line provides reliable fuel-circuiting within the vehicle’s structure, directing fuel return or feed through the centre tunnel. It must maintain integrity under fuel pressure, vibration and heat, while resisting corrosion for long service life.

Over time, the original fuel lines in the centre tunnel can deteriorate due to vibration, fuel exposure, and age. This can lead to leaks, vapour loss, or safety risks. Replace the fuel line when:
 • Corrosion or rust is visible on the metal surface.
 • You notice fuel odour or damp spots near the tunnel area.
 • The line shows signs of wear, cracking, or deformation.
 • Performing a full restoration, engine rebuild, or fuel-system refresh.

Installing a high-quality new fuel line ensures proper routing, durable materials, and leak-free operation - restoring the safety and reliability of your Porsche’s fuel system.

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90110853101

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Fuel Line – Mixture Control to Warm-Up Regulator 

High-quality replacement fuel line designed for Porsche 911 SC 1978-80 models equipped with Bosch K-Jetronic fuel injection systems.

This line connects the mixture control unit (fuel distributor) to the warm-up regulator (WUR), playing a critical role in regulating control pressure within the fuel system. This pressure directly influences fuel mixture during cold starts and warm-up phases, making this line essential for proper engine behaviour and drivability.

Fits:

• Porsche 911 1978-1980 3.0L / SC

Diagram ref no 51

Manufactured from a high-quality polyamide tube, this fuel line features reinforced polyamide fibres and an additional protective outer sheath, ensuring exceptional durability, pressure resistance, and long-term reliability in demanding engine bay conditions.

Built to OEM specifications, it offers precise fitment and is ideal for maintenance, repair, or full CIS system restoration.

Key Features

• Direct replacement fuel line (mixture control to WUR)
• Suitable for Porsche 911 SC 
• Manufactured from high-quality reinforced polyamide
• Polyamide fibre reinforcement for strength
• Additional protective outer sheath
• Designed for precise control pressure delivery
• OEM-style fit and performance

Part of a Complete K-Jetronic Fuel & Control Pressure System

This line operates within the   K-Jetronic  control pressure circuit, which includes:

• Fuel distributor / mixture control unit
• Warm-up regulator (WUR)
• Fuel pressure lines
• Fuel accumulator
• Injector lines and injectors

Together, these components regulate fuel pressure and mixture, particularly during cold starts and engine warm-up.

Why This Line is Critical

The warm-up regulator relies on accurate pressure signals.

This hose helps to:

• Deliver control pressure from the fuel distributor
• Regulate air-fuel mixture during engine warm-up
• Ensure smooth cold starting and idle stability
• Maintain consistent engine performance

Why Replace K-Jetronic Control Pressure Lines

Over time, original lines can degrade or lose integrity.

Common issues include:

• Cracking or ageing of original materials
• Internal restriction affecting pressure regulation
• Fuel leaks under pressure
• Poor cold start performance or unstable idle

Replacing the line restores correct control pressure behaviour and system reliability.

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93011050201

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Fuel Line – Mixture Control to Warm-Up Regulator 

High-quality replacement fuel line designed for Porsche 911 SC 1978-80 models equipped with Bosch K-Jetronic fuel injection systems.

This line connects the mixture control unit (fuel distributor) to the warm-up regulator (WUR), playing a critical role in regulating control pressure within the fuel system. This pressure directly influences fuel mixture during cold starts and warm-up phases, making this line essential for proper engine behaviour and drivability.

Fits:

• Porsche 911 1978-1980 3.0L / SC

Diagram ref no 51

Manufactured from a high-quality polyamide tube, this fuel line features reinforced polyamide fibres and an additional protective outer sheath, ensuring exceptional durability, pressure resistance, and long-term reliability in demanding engine bay conditions.

Built to OEM specifications, it offers precise fitment and is ideal for maintenance, repair, or full CIS system restoration.

Key Features

• Direct replacement fuel line (mixture control to WUR)
• Suitable for Porsche 911 SC 
• Manufactured from high-quality reinforced polyamide
• Polyamide fibre reinforcement for strength
• Additional protective outer sheath
• Designed for precise control pressure delivery
• OEM-style fit and performance

Part of a Complete K-Jetronic Fuel & Control Pressure System

This line operates within the   K-Jetronic  control pressure circuit, which includes:

• Fuel distributor / mixture control unit
• Warm-up regulator (WUR)
• Fuel pressure lines
• Fuel accumulator
• Injector lines and injectors

Together, these components regulate fuel pressure and mixture, particularly during cold starts and engine warm-up.

Why This Line is Critical

The warm-up regulator relies on accurate pressure signals.

This hose helps to:

• Deliver control pressure from the fuel distributor
• Regulate air-fuel mixture during engine warm-up
• Ensure smooth cold starting and idle stability
• Maintain consistent engine performance

Why Replace K-Jetronic Control Pressure Lines

Over time, original lines can degrade or lose integrity.

Common issues include:

• Cracking or ageing of original materials
• Internal restriction affecting pressure regulation
• Fuel leaks under pressure
• Poor cold start performance or unstable idle

Replacing the line restores correct control pressure behaviour and system reliability.

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93011050201

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Fuel Line – Mixture Control to Warm-Up Regulator 

High-quality replacement fuel line designed for Porsche 911 1974 models equipped with Bosch CIS (K-Jetronic) fuel injection systems.

This line connects the mixture control unit (fuel distributor) to the warm-up regulator (WUR), playing a critical role in regulating control pressure within the fuel system. This pressure directly influences fuel mixture during cold starts and warm-up phases, making this line essential for proper engine behaviour and drivability.

Fits:

• Porsche 911 S 2.7L 1974-1977

Diagram ref no 62

Manufactured from a high-quality polyamide tube, this fuel line features reinforced polyamide fibres and an additional protective outer sheath, ensuring exceptional durability, pressure resistance, and long-term reliability in demanding engine bay conditions.

Built to OEM specifications, it offers precise fitment and is ideal for maintenance, repair, or full CIS system restoration.

Key Features

• Direct replacement fuel line (mixture control to WUR)
• Suitable for Porsche 911 (1974 – CIS models)
• Manufactured from high-quality reinforced polyamide
• Polyamide fibre reinforcement for strength
• Additional protective outer sheath
• Designed for precise control pressure delivery
• OEM-style fit and performance

Part of a Complete CIS Fuel & Control Pressure System

This line operates within the CIS control pressure circuit, which includes:

• Fuel distributor / mixture control unit
• Warm-up regulator (WUR)
• Fuel pressure lines
• Fuel accumulator
• Injector lines and injectors

Together, these components regulate fuel pressure and mixture, particularly during cold starts and engine warm-up.

Why This Line is Critical

The warm-up regulator relies on accurate pressure signals.

This hose helps to:

• Deliver control pressure from the fuel distributor
• Regulate air-fuel mixture during engine warm-up
• Ensure smooth cold starting and idle stability
• Maintain consistent engine performance

Why Replace CIS Control Pressure Lines

Over time, original lines can degrade or lose integrity.

Common issues include:

• Cracking or ageing of original materials
• Internal restriction affecting pressure regulation
• Fuel leaks under pressure
• Poor cold start performance or unstable idle

Replacing the line restores correct control pressure behaviour and system reliability.

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91111050101

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Fuel Pressure Line – Pump to Fuel Accumulator 

High-quality replacement fuel pressure line designed for Porsche 911 models from 1976 to 1977, connecting the fuel pump to the fuel accumulator.

This line is a critical component of the Bosch CIS (Continuous Injection System), delivering pressurised fuel from the pump to the accumulator, where pressure is stabilised before reaching the injection system. Proper function is essential for smooth engine operation, reliable starting, and consistent fuel delivery.

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera       

Diagram Ref No 11

Manufactured to OEM specifications, this fuel pressure line ensures precise fitment along with excellent resistance to fuel, heat, and high pressure—making it ideal for maintenance, repair, or restoration of classic Porsche 911 models.

Key Features

• Direct replacement fuel pressure line (pump to accumulator)
• Suitable for Porsche 911 (1976–1977)
• Designed for CIS fuel injection systems
• Handles high-pressure fuel delivery
• Resistant to fuel, heat, and pressure
• OEM-style fit and performance

Function and Purpose

This fuel line is a vital part of the CIS fuel system.

It helps to:

• Deliver pressurised fuel from the pump to the accumulator
• Stabilise fuel pressure before distribution
• Support consistent engine starting and running
• Maintain proper fuel system operation

Why Replace Your Fuel Pressure Line

Fuel lines in CIS systems are subject to high pressure and heat over time.

Common issues include:

• Cracking or degradation of hose material
• Fuel leaks under pressure
• Loss of system pressure stability
• Hard starting or poor engine performance

Replacing the line restores safe and reliable fuel system function.

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91135606604

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Fuel line pressure. 
From fuel pump to fuel accumulator



Fits:
Porsche 911 turbo 3.3ltr - 1978 to 1989

Click 'Zoom in' for large parts diagram.
Diagram ref no 13


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93035608107

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Fuel line warm-up valve to mixer unit.
This fuel line assembly with integrated warp-up valve connects from the fuel system to the mixer or injection control unit, helping regulate fuel flow during warm-up or transient conditions. It ensures proper fuel delivery, mixture balancing, and smooth engine response, particularly during cold start and transitional throttle operation.  

Fits:
Porsche 911 SC 3.0L 1978 - 1980

Diagram ref no 61

Aged or cracked lines can leak fuel, creating serious risks and causing mixture imbalances, rough idle, or hesitation during warm-up. An OE-Match replacement restores proper fuel delivery, ensures smooth cold starts, and maintains stable engine performance. Built to resist heat, vibration, and pressure, it provides lasting reliability and peace of mind by preventing breakdowns and protecting your Porsche from costly damage.

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93011051300

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Fuel Line, complete. For Weber and Zenith carburettors.

Fits:
Porsche 911 65-73 Weber / Zenith Carburettor

Diagram ref no 3

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