Fuel Lines & Breather Hoses

Fuel Return Hose – Metering Head Line 

High-quality replacement fuel return hose designed for Porsche 911 Turbo (930) and 964 turbo models, connecting directly to the fuel metering head within the K-Jetronic system

This hose plays a crucial role in returning excess fuel from the metering head back into the fuel system, ensuring proper pressure regulation and stable fuel delivery. Correct operation is essential for maintaining optimal engine performance, smooth running, and consistent fuel system behaviour in turbocharged applications.

Fits:

• Porsche 911 1978-1989 3.3L Turbo (930)
• Porsche 964 (911) TURBO 3.3L 1991-93
• Porsche 964 (911) TURBO 3.6L 1991-93

Diagram ref no 17

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

Key Features

• Direct replacement fuel return hose from metering head
• Suitable for Porsche 911 turbo (930) & 964 turbo
• Designed for K-Jetronic fuel injection systems
• Maintains correct fuel pressure and circulation
• Resistant to fuel, heat, and high pressure
• OEM-style fit and performance

Function and Purpose

This hose is a vital component of the K-Jetronic fuel system.

It helps to:

• Return excess fuel from the metering head
• Maintain stable fuel pressure within the system
• Support accurate fuel metering and distribution
• Ensure consistent engine performance

Why Replace Your Fuel Return Hose

Fuel hoses in K-Jetronic systems are exposed to high pressure and temperature.

Common issues include:

• Cracking or degradation of hose material
• Fuel leaks under pressure
• Irregular fuel pressure behaviour
• Poor engine performance or drivability

Replacing the hose restores safe and reliable fuel system operation.

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Related, superseded, cross reference or alternative numbers for comparison.

93011030505

The product you are viewing cross references to these numbers

Fuel Line.
The Porsche Fuel Line is a genuine OEM replacement component designed for Porsche 911 (964) models from 1989–1994. This precision-engineered line ensures safe, efficient, and leak-free fuel delivery within the L-Jetronic fuel injection system.

Fits:

• 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

What This Product Does:

It’s a rigid or semi-rigid fuel feed line that carries fuel from the supply source (fuel pump / fuel filter) to the injector rails or part of the fuel injection system.
It must maintain fuel pressure and avoid leaks, kinks, or chafing. It’ll be routed along engine bay or firewall areas, often exposed to heat and vibration, so material durability is important.

Symptoms Of A Failing / Damaged Fuel Line:

• Fuel smell in engine bay, particularly under load or acceleration.
  
• Visible fuel leak or seepage along the line or fittings.
  
• Poor performance, hesitation, or stumbling when accelerating, because fuel supply or pressure is not consistent.
  
• Hard starting if fuel isn’t reaching injectors properly.
  
• Engine Light or fault codes related to fuel pressure, injector supply, or lean mixture.
  
• Spitting / sputtering if air is drawn into the fuel feed or fuel delivery is compromised.
  
  

Why Replacement Matters:

• Restores safe, leak-free fuel delivery — fuel leaks are a fire hazard and dangerous.
• Ensures correct fuel pressure for proper engine performance and driveability.
• Prevents damage or stress to other fuel system components (fuel pump, regulator, injectors) that might struggle if supply is inconsistent.
• Maintains reliability & prevents breakdowns — a failed fuel line could strand you or lead to more costly secondary damage.

Diagram Ref No 10

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

96411059502

The product you are viewing cross references to these numbers

Fuel Line.
The Fuel Line is a replacement component designed for Porsche 911 (964) models from 1989–1994. This precision-engineered line ensures safe, efficient, and leak-free fuel delivery within the L-Jetronic fuel injection system.

Fits:

• 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

What This Product Does:

It’s a rigid or semi-rigid fuel feed line that carries fuel from the supply source (fuel pump / fuel filter) to the injector rails or part of the fuel injection system.
It must maintain fuel pressure and avoid leaks, kinks, or chafing. It’ll be routed along engine bay or firewall areas, often exposed to heat and vibration, so material durability is important.

Symptoms Of A Failing / Damaged Fuel Line:

• Fuel smell in engine bay, particularly under load or acceleration.
  
• Visible fuel leak or seepage along the line or fittings.
  
• Poor performance, hesitation, or stumbling when accelerating, because fuel supply or pressure is not consistent.
  
• Hard starting if fuel isn’t reaching injectors properly.
  
• Engine Light or fault codes related to fuel pressure, injector supply, or lean mixture.
  
• Spitting / sputtering if air is drawn into the fuel feed or fuel delivery is compromised.
  
  

Why Replacement Matters:

• Restores safe, leak-free fuel delivery — fuel leaks are a fire hazard and dangerous.
• Ensures correct fuel pressure for proper engine performance and driveability.
• Prevents damage or stress to other fuel system components (fuel pump, regulator, injectors) that might struggle if supply is inconsistent.
• Maintains reliability & prevents breakdowns — a failed fuel line could strand you or lead to more costly secondary damage.

Diagram Ref No 10

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

96411059502

The product you are viewing cross references to these numbers

Fuel line for LHD cars



Fts:
For LHD cars
Porsche 964 C2 / C4 / RS 1992-94
Porsche 965 Turbo 1992-94

Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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

96435606106

The product you are viewing cross references to these numbers

Fuel Line.

Fits:
Porsche 964 Turbo 3.3L 1991-92
Porsche 964 Turbo 3.6L 1992-94

Diagram ref no 33

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

93011030107

The product you are viewing cross references to these numbers

Fuel line.



Fits:
Porsche 911 Turbo 3.3L 1978-89
Porsche 964 Turbo 3.3L 1991-92
Porsche 964 Turbo 3.6L 1993-94

Click 'Zoom in' for large parts diagram.
Diagram ref no 16

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

93011030208

The product you are viewing cross references to these numbers

Fuel line.



Fits:
Porsche 964 Turbo 3.3L 1991-92
Porsche 964 Turbo 3.6L 1993-94

Click 'Zoom in' for large parts diagram.
Diagram ref no 35

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

93011030410

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Fuel Line.

 


Fits:
Porsche 964 Turbo 3.3L 1991-92
Porsche 964 Turbo 3.6L 1993-94

Click 'Zoom in' for large parts diagram.
Diagram ref no 40

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

93011036400

The product you are viewing cross references to these numbers

Fuel Line. 

Fits:
Porsche 964 Turbo 3.3L 1991>>1993
Porsche 964 Turbo 3.6L 1991>>1993

Diagram Ref No 34

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93011030407

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Fuel lines rubber mount.



Fits:
Porsche 964 1989-94 LHD cars with power assisted steering (M657)
Porsche 993 1994-98 LHD cars

Click 'Zoom in' for large parts diagram.
Diagram ref no 17

Related reference numbers
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96435659500

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Fuel return line.

Fits:
Porsche 964 

Diagram ref no 34

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96435658307

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Fuel Return Hose – Solid Pipe to Tank 

High-quality replacement fuel return hose designed for Porsche 964 models, connecting the solid fuel pipe to the fuel tank.

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

Fits:

• 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

Diagram ref no 34

Manufactured to OEM specifications, this fuel return hose provides precise fitment along with excellent resistance to fuel, heat, and pressure—making it ideal for maintenance, repair, or restoration of Porsche 964 fuel systems.

Key Features

• Direct replacement fuel return hose (pipe to tank)
• Suitable for Porsche 964 models
• Maintains proper fuel circulation and pressure balance
• Resistant to fuel, heat, and pressure
• OEM-style fit and performance
• Ideal for fuel system 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 fuel system overpressure
• Support efficient fuel circulation

Why Replace Your Fuel Return Hose

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 reliability and performance

Replacing the hose restores safe and consistent fuel system operation.

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

96435658307

The product you are viewing cross references to these numbers

Fuel return line.



Fits:
Only for left-hand-drive vehicles
Porsche 964 1992-94
Porsche 993 1994-98

Click 'Zoom in' for large parts diagram.
Diagram ref no 34

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96435658306

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Fuel return line.



Fits:
Only for right-hand-drive vehicles
Porsche 964 1992-94
Porsche 993 1994-98

Click 'Zoom in' for large parts diagram.
Diagram ref no 34

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96435658403

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Fuel return line.



Fits:
Porsche 964 1989-94 LHD cars

Click 'Zoom in' for large parts diagram.
Diagram ref no 23

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96435636703

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Fuel Return Line.

 


Fits:
Porsche 964 C2 / C4 1989-94
Porsche 964 Carrera RS 3.6L 1992 (M657 - cars with power assisted steering)

Click 'Zoom in' for large parts diagram.
Diagram ref no 9.

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96411041500

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