Fuel Lines & Breather Hoses

Fuel Return Line – Fuel System Hose 

High-quality replacement fuel return line designed for Porsche 944 models from 1987 to 1988.

This hose is a critical component of the fuel system, responsible for returning excess fuel from the engine back to the fuel tank. It ensures proper fuel circulation and maintains stable system pressure, supporting efficient engine operation and long-term reliability.

Fits:

• Porsche 944S 2.5L 16V 1987-88

Diagram ref no 33

Manufactured to OEM specifications, this fuel return line provides precise fitment along with excellent resistance to fuel, heat, and pressure—making it ideal for maintenance, repair, or restoration of late Porsche 944 models.

Key Features

• Direct replacement fuel return line
• Suitable for Porsche 944 (1987–1988)
• Maintains proper fuel circulation and pressure balance
• Resistant to fuel, heat, and pressure
• OEM-style fit and performance
• Ideal for maintenance and restoration

Function and Purpose

This hose is an essential part of the fuel system.

It helps to:

• Return excess fuel safely to the tank
• Maintain stable fuel pressure
• Prevent overpressure within the system
• Support efficient fuel circulation

Why Replace Your Fuel Return Line

Fuel hoses degrade over time due to exposure to heat, pressure, and fuel.

Common issues include:

• Cracking or deterioration
• Fuel leaks or seepage
• Pressure imbalance within the system
• Reduced engine reliability and performance

Replacing the hose restores safe and consistent fuel system operation.

Related reference numbers
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94435602720

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Fuel return line.



Fits:
Porsche 944 S 1988-91 (Engine code 4440 / 4441)

Porsche 944 / 944 Turbo 1989-91 (Engine code 4411 / 4412 / 4451 / 4452)
F 94-KN404 559>>
F 95-KN101 327>>

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Diagram ref no 4

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94435693711

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Fuel Supply Hose 

High-quality replacement fuel supply hose designed for Porsche 944 2.7ltr, 944 S2, and 944 turbo models.

This hose is a key component of the fuel delivery system, responsible for supplying fuel under pressure between critical fuel system components. It ensures consistent fuel flow, supporting efficient combustion, engine performance, and reliability—especially in higher-output S2 and turbo variants.

Fits:

• Porsche 944S 2.5L 16V 1987-88
• Porsche 944S2 3.0L 16V 1989-91
• Porsche 944 Turbo 2.5L 8V 1989-91

Diagram ref no 32

Manufactured to OEM specifications, this fuel supply hose offers precise fitment along with excellent resistance to fuel, heat, and pressure—making it ideal for maintenance, repair, or restoration of Porsche 944 fuel systems.

Key Features

• Direct replacement fuel supply hose
• Suitable for Porsche 944 2.7L, S2 & Turbo models
• Maintains consistent fuel delivery under pressure
• Designed for both naturally aspirated and turbocharged systems
• Resistant to fuel, heat, and pressure
• OEM-style fit and performance

Function and Purpose

This hose is an essential part of the fuel system.

It helps to:

• Deliver fuel between key fuel system components
• Maintain stable fuel pressure for injection
• Ensure consistent fuel flow to the engine
• Support efficient engine performance and drivability

Why Replace Your Fuel Supply Hose

Fuel hoses degrade over time due to heat cycles, pressure, and fuel exposure.

Common issues include:

• Cracking or deterioration
• Fuel leaks or seepage
• Reduced fuel pressure or flow
• Engine hesitation or poor performance

Replacing the hose restores safe and reliable fuel system operation.

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

94435602914

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Fuel supply hose.



Fits:
Porsche 944 S 1987-88
Porsche 944 S2
Porsche 944 Turbo 1989-91


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Diagram ref no 32

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94435602914

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Fuel tank to fuel pump hose.



Fits:
Porsche 944 1985-91
Porsche 968 1992-95

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Diagram ref no 23

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95135655700

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Fuel tank to fuel pump hose.

Fits:
Porsche 944 1985 - 1991
Porsche 968 1992 - 1995

Diagram ref no 23

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Porsche 944 / 924S High-Pressure Fuel Hose XL – Safety Upgrade

Prevent Fuel Leaks and Reduce Engine Bay Fire Risk

One of the most common causes of engine bay fires in the Porsche 944 is failure of the main high-pressure fuel line. Over time, the original hose ages, hardens and develops cracks. When this line leaks, fuel can drip directly onto the hot exhaust manifold, creating a serious fire hazard.

Fits:

• 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

This upgraded XL high-pressure fuel hose is designed to eliminate that risk by improving routing and adding additional heat protection.

What the Main Fuel Hose Does

The main high-pressure fuel hose delivers pressurised fuel from the fuel rail and fuel system to the engine. It operates under constant pressure and high temperatures inside the engine bay.

Its function is critical to:

• Supplying consistent fuel pressure
• Maintaining proper engine performance
• Ensuring safe fuel delivery under load

Because this hose sits near the exhaust system in factory configuration, deterioration can quickly become dangerous.

Why Original Fuel Hoses Fail

Over decades of use, factory fuel hoses commonly suffer from:

• Age-related rubber cracking
• Heat exposure from the exhaust manifold
• Ethanol content in modern fuels
• Internal degradation under pressure
• Sudden splitting without warning

Fuel leakage can happen unexpectedly and escalate quickly.

Why You Should Upgrade to the XL Version

This XL high-pressure fuel hose has been redesigned for improved safety and longevity.

Key advantages include:

• Extra length to reroute the hose along the top of the bulkhead
• Avoids running directly over the hot exhaust
• Black heat-resistant outer sheath for added protection
• Improved routing reduces stress on fuel rail connections
• Helps prevent cracking at fuel rail fittings

By routing the hose away from the exhaust and securing it along the bulkhead, the risk of fuel contacting high heat components is significantly reduced.

In early models and 924S variants, the extended length allows cleaner routing under the spray piece, improving both appearance and reliability.

A vehicle lift is required for installation.

When You Should Replace Your Fuel Line

You should replace the main fuel hose if:

• The original line has never been replaced
• You notice fuel smell in the engine bay
• The hose shows cracking or brittleness
• You are restoring or maintaining a classic 944 or 924S
• You want preventative fire protection

Eventually, every original hose will require replacement. Upgrading now protects both your vehicle and your investment.

Key Benefits at a Glance

• Direct replacement high-pressure fuel hose
• Extra-long design for safer routing
• Avoids contact with hot exhaust components
• Heat-resistant outer protective sheath
• Suitable for all 944 years and 924S
• Helps prevent fuel rail connection cracking
• Ideal preventative safety upgrade       

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951356XLKIT

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Hose for Activated Charcoal Container – 950mm long

High-quality fuel hose supplied in a 950mm pre-cut length, designed for use in Porsche fuel systems.

This hose is engineered to provide safe and reliable fuel transfer between system components, ensuring consistent fuel delivery and proper system operation. Manufactured to OEM specifications, it offers precise fitment, durability, and resistance to fuel and engine bay conditions.

Fits:

• Porsche 944 2.5L 8V 1982-85
• 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

Diagram ref no 39

Ideal for maintenance, repair, or restoration, this pre-cut hose provides a convenient direct replacement solution without the need for cutting from bulk hose.

Key Features

• Fuel hose with 950mm fixed length
• OEM part number 94420177300 / 94420177301
• Designed for reliable fuel transfer
• Pre-cut for easy installation
• Resistant to fuel and engine bay heat
• Flexible and durable construction
• OEM-style fit and performance

Function and Purpose

This fuel hose is an essential component of the fuel system.

It helps to:
• Transport fuel between system components
• Maintain consistent fuel flow and pressure
• Ensure safe and leak-free operation
• Support efficient engine performance
• Enable reliable fuel delivery under various conditions

Why Replace Fuel Hoses

Over time, fuel hoses can deteriorate due to heat and fuel exposure.

Common issues include:
• Cracking or splitting
• Fuel leaks and safety risks
• Hardening and reduced flexibility
• Reduced fuel delivery efficiency

Replacing worn hoses ensures safe operation and restores proper fuel system performance.

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94420177301

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M14 Banjo Bolt – Power Steering, Gearbox Oil & Fuel Line Fitting 
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This versatile banjo bolt is used to secure banjo fittings across a range of systems, including power steering hoses, gearbox oil pipes, and fuel lines, ensuring a strong, leak-free connection under pressure.

Fits:

• Porsche 911 1965-1968 2.0L / 912 SWB (F)
• Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93
• Porsche 964 (911) TURBO 3.3L 1991-93
• Porsche 964 (911) TURBO 3.6L 1991-93
• Porsche 993 (911) C2 1994-97
• Porsche 993 (911) C4 1994-97
• Porsche 993 (911) RS 1994-97
• Porsche 993 (911) C2S 1994-97
• Porsche 993 (911) C4S 1994-97
• Porsche 993 (911) TURBO 1994-96
• Porsche 993 (911) GT2 1994-97
• Porsche 993 (911) TURBO S 1994-97
• 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 928 4.5L 1978-82
• 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 928S 4.7L 1981-83
• Porsche 928S2 4.7L 1984-86
• Porsche 928S4 5.0L 1987-92
• Porsche 928GT 5.0L 1989-91

Diagram ref no 39 

Engineered to OEM specifications, it delivers precise fitment and reliable sealing performance, making it an essential component for maintaining fluid system integrity across hydraulic, lubrication, and fuel systems. Ideal for servicing, repair, or restoration of both classic and modern Porsche models.

Key Features

• M14 banjo bolt for multiple Porsche applications
• Suitable for power steering, gearbox oil, and fuel systems
• Compatible with 911, 964, 924S, 928, and 944 models
• Designed for high-pressure fluid systems
• Ensures secure, leak-free connections
• OEM-style fit and specification
• Durable construction for long-term reliability

Function and Purpose

This banjo bolt is a critical fastening component used across several vehicle systems.

It helps to:
• Secure banjo fittings to power steering hoses
• Connect gearbox oil pipes for lubrication systems
• Fasten fuel line connections within the fuel system
• Maintain proper sealing under pressure
• Ensure consistent fluid flow and system efficiency

Why Replace Banjo Bolts

Over time, banjo bolts can degrade due to heat, pressure, and fluid exposure.

Common issues include:
• Fluid leaks (oil, fuel, or hydraulic fluid)
• Thread wear or stripping
• Corrosion from long-term use
• Reduced sealing efficiency

Replacing worn bolts ensures safe operation and maintains performance across multiple systems.

Related reference numbers
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PCG13400701

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M14 Banjo Bolt – Power Steering, Gearbox Oil & Fuel Line Fitting 
Sold each

This versatile banjo bolt is used to secure banjo fittings across a range of systems, including power steering hoses, gearbox oil pipes, and fuel lines, ensuring a strong, leak-free connection under pressure.

Fits:

• Porsche 911 1965-1968 2.0L / 912 SWB (F)
• Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93
• Porsche 964 (911) TURBO 3.3L 1991-93
• Porsche 964 (911) TURBO 3.6L 1991-93
• Porsche 993 (911) C2 1994-97
• Porsche 993 (911) C4 1994-97
• Porsche 993 (911) RS 1994-97
• Porsche 993 (911) C2S 1994-97
• Porsche 993 (911) C4S 1994-97
• Porsche 993 (911) TURBO 1994-96
• Porsche 993 (911) GT2 1994-97
• Porsche 993 (911) TURBO S 1994-97
• 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 928 4.5L 1978-82
• 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 928S 4.7L 1981-83
• Porsche 928S2 4.7L 1984-86
• Porsche 928S4 5.0L 1987-92
• Porsche 928GT 5.0L 1989-91

Diagram ref no 39 

Engineered to OEM specifications, it delivers precise fitment and reliable sealing performance, making it an essential component for maintaining fluid system integrity across hydraulic, lubrication, and fuel systems. Ideal for servicing, repair, or restoration of both classic and modern Porsche models.

Key Features

• M14 banjo bolt for multiple Porsche applications
• Suitable for power steering, gearbox oil, and fuel systems
• Compatible with 911, 964, 924S, 928, and 944 models
• Designed for high-pressure fluid systems
• Ensures secure, leak-free connections
• OEM-style fit and specification
• Durable construction for long-term reliability

Function and Purpose

This banjo bolt is a critical fastening component used across several vehicle systems.

It helps to:
• Secure banjo fittings to power steering hoses
• Connect gearbox oil pipes for lubrication systems
• Fasten fuel line connections within the fuel system
• Maintain proper sealing under pressure
• Ensure consistent fluid flow and system efficiency

Why Replace Banjo Bolts

Over time, banjo bolts can degrade due to heat, pressure, and fluid exposure.

Common issues include:
• Fluid leaks (oil, fuel, or hydraulic fluid)
• Thread wear or stripping
• Corrosion from long-term use
• Reduced sealing efficiency

Replacing worn bolts ensures safe operation and maintains performance across multiple systems.

Related reference numbers
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PCG13400701

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Fuel & Gearbox Oil Pipe Connector – M16 
Sold each

High-quality M16 pipe connector designed for use in Porsche fuel and gearbox oil systems across multiple models including 924, 944, 928, and 964.

This connector provides a secure and reliable connection between pipework within both fuel delivery and transmission lubrication systems. Engineered to handle pressure, temperature, and fluid exposure, it ensures leak-free performance and long-term durability in demanding environments.

Fits:

Diagram ref no 27

This M16 connector delivers precise fitment and dependable sealing, making it ideal for maintenance, repair, or restoration projects.

Key Features

• M16 pipe connector for fuel and gearbox oil systems
• Suitable for Porsche 924, 944, 928, and 964
• Ensures secure, leak-free pipe connections
• Designed for fuel and transmission oil applications
• OEM-style fit and performance
• Durable construction for long-term reliability

Function and Purpose

This connector is an essential link within fuel and transmission systems.

It helps to:

• Join pipework securely under pressure
• Maintain proper sealing of fuel and oil circuits
• Prevent leaks and fluid loss
• Support reliable system performance

Why Replace Pipe Connectors

Over time, connectors can wear due to heat, vibration, and fluid exposure.

Common issues include:

• Thread wear or damage
• Oil or fuel leaks
• Poor sealing between connections
• Reduced system reliability

Replacing connectors ensures safe and efficient operation of both fuel and gearbox systems.

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477209169

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Fuel & Gearbox Oil Pipe Connector – M16 
Sold each

High-quality M16 pipe connector designed for use in Porsche fuel and gearbox oil systems across multiple models including 924, 944, 928, and 964.

This connector provides a secure and reliable connection between pipework within both fuel delivery and transmission lubrication systems. Engineered to handle pressure, temperature, and fluid exposure, it ensures leak-free performance and long-term durability in demanding environments.

Fits:

Diagram ref no 27

This M16 connector delivers precise fitment and dependable sealing, making it ideal for maintenance, repair, or restoration projects.

Key Features

• M16 pipe connector for fuel and gearbox oil systems
• Suitable for Porsche 924, 944, 928, and 964
• Ensures secure, leak-free pipe connections
• Designed for fuel and transmission oil applications
• OEM-style fit and performance
• Durable construction for long-term reliability

Function and Purpose

This connector is an essential link within fuel and transmission systems.

It helps to:

• Join pipework securely under pressure
• Maintain proper sealing of fuel and oil circuits
• Prevent leaks and fluid loss
• Support reliable system performance

Why Replace Pipe Connectors

Over time, connectors can wear due to heat, vibration, and fluid exposure.

Common issues include:

• Thread wear or damage
• Oil or fuel leaks
• Poor sealing between connections
• Reduced system reliability

Replacing connectors ensures safe and efficient operation of both fuel and gearbox systems.

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Hose clip fuel line A9 x 18
Bleed nipple cap for brake caliper and clutch slave cylinder



Fits:
Porsche 356B
Porsche 911 - 1965 to 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998
Porsche 944 - 1982 to 1989
Porsche 928 - 1978 to 1990

Click 'Zoom in' for large parts diagram.
Diagram ref no 15

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