Fuel Lines & Breather Hoses

Fuel breather hose.


Fits:
Porsche 924 1980-85
Porsche 924S 1986-88
Porsche 944 1982-91
Porsche 968 1992-95

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Diagram ref no 45

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477201393C

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Fuel hose, return.



Fits:
Porsche 924 1976-75 (not for Turbo / GT)
F 92-47100 288>>
F 92-49103 158>>
F 92-49400 051>>

Porsche 924 S 1986-88
Porsche 944 1982-1985

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Diagram ref no 22

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PCG209071C

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Fuel hose.

 


Fits:
Porsche 924S 1986-88
Porsche 944 1982-85

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Diagram ref no 9

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94435604804

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Fuel hose.

Fits:
Porsche 924 1976-79
Porsche 924S 1986-88
Porsche 944 1982-85

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Diagram ref no 26

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94435655701

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Fuel line - runs from the fuel rail to the diaphragm damper. 

Fits:
Porsche 924 S 2.5L 1986-88

Porsche 944-2 2.5L 1985-88
Porsche 944 2.7L 1989 

Porsche 944 Turbo 2.5L 1986-91
Porsche 944 Turbo S 2.5L 1988 

Diagram ref. 11. 

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94411041303

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Fuel Line Rubber Mounting.


Fits:
Porsche 924S 1986-88
Porsche 944 / 944 S / Turbo 1985-87
Porsche 944 S2 / Turbo / Turbo S 1989-91 COUPE
Porsche 968 1992-95 COUPE

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Diagram ref no 7

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99959197540

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Fuel line.

#porsche

Fits:
Porsche 924S 1986-88

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Diagram ref no 1

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94435694305

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Fuel Pipe Connector.

The Porsche Fuel Pipe Connector is a genuine OEM connecting piece designed for the fuel delivery system in classic Porsche models, including the 924 and 944. This small but vital component links sections of fuel pipe or hose, ensuring a secure and leak-free connection within the fuel system.
Over time, connectors can weaken, corrode, or crack, leading to fuel leaks and loss of pressure. Replacing it with this OEM Porsche connector restores system integrity, prevents dangerous leaks, and ensures your engine receives the correct fuel pressure for smooth performance.

Fits:

• Porsche 924 2.0L 1976-79
  
• Porsche 924 2.0L 1980-85
  
• Porsche 924S 2.5L 1986-87 
• Porsche 924S 2.5L 1988 
• Porsche 944 2.5L 8V 1982-85
  
• Porsche 944 Turbo 2.5L 8V 1985-88
  
• Porsche 944 Turbo S 2.5L 8V 1988>>
  
• Porsche 944S2 3.0L 16V 1989-91
  
• Porsche 944 Turbo 2.5L 8V 1989-91

What This Product Does:
It’s a small but essential connector in the fuel feed / fuel line system. It joins sections of fuel pipe or hose — often between the fuel pump, fuel filter, accumulator, or between pipe and hose segments.

Symptoms Of A Faulty Or Failing Fuel Pipe Connector:
If this connector is worn, damaged, or leaking, common symptoms will include:

• Fuel smell around the engine bay or under the car, especially near where this connector is installed.
• Liquid fuel leaks visible around the connector or dripping when the engine is running / fuel system is pressurized.
• Poor fuel pressure, which can lead to rough running, hesitation, or weak acceleration.
• Possibly difficulty starting if fuel supply is compromised.
• Visible damage or corrosion to the connector — cracked plastic or metal, worn threads, or loose hose / pipe connections.

 
Why Replacement Matters:
Even though it’s a small part, it’s critical:

• Fuel delivery depends on all connectors and lines being sealed and strong. A faulty connector can compromise the whole fuel feed.
• Leaks are dangerous (fire risk) and waste fuel.
• Loss of pressure or leaks can lead to poor engine performance, misfires, or engine stalling.
• Using a genuine part like this one ensures correct fit, strength, sealing finish, and avoids fitment mismatches or leaks.

Diagram Ref No 1A

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477209161

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Fuel pump to fuel filter hose



Fits:
Porsche 924S 1986-88
Porsche 944 1982-85

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Diagram ref no 12

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94435604114

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Porsche 924S & 944 Fuel Hose - Fuel Pump to Fuel Filter

Reliable Fuel Delivery for Classic Transaxle Porsche Models

The fuel hose from the fuel pump to the fuel filter is a critical component of the Porsche 924S and 944 fuel system. This hose transfers pressurised fuel directly from the fuel pump to the fuel filter, ensuring clean and consistent fuel supply to the engine.

Maintaining the integrity of this hose is essential for stable fuel pressure, smooth engine operation and overall vehicle safety.

Fits:

• Porsche 924S 2.5L 1986-87
• Porsche 924S 2.5L 1988
• Porsche 944 2.5L 8V 1982-87

Diagram ref no 12

What This Fuel Hose Does

In the Porsche 924S and 944 fuel system, fuel is drawn from the tank by the electric fuel pump and pushed through a dedicated hose into the fuel filter. The fuel filter removes contaminants before fuel continues to the rail and injectors.

The fuel pump to filter hose is responsible for:

• Carrying pressurised fuel safely from pump to filter
• Maintaining consistent fuel pressure under load
• Preventing leaks in a high-pressure section of the system
• Supporting smooth engine idle and acceleration

If this hose fails, fuel delivery can become inconsistent or unsafe.

Why Fuel Hoses Fail on 924S and 944 Models

Fuel hoses on classic Porsche transaxle cars are often original or decades old. Over time, exposure to heat, vibration and modern ethanol-blended fuels can cause deterioration.

Common failure causes include:

• Age-related rubber hardening and cracking
• Internal breakdown from fuel permeation
• Swelling caused by ethanol content in modern fuels
• Heat cycling in the engine bay
• Abrasion against surrounding components

Because this hose operates under pressure, even minor cracks or weakness can result in leaks or pressure loss.

When You Should Replace This Fuel Hose

You should replace the fuel pump to fuel filter hose if you notice:

• Visible cracks, splits or softness in the hose
• Fuel smell near the rear or underside of the vehicle
• Dampness or seepage around hose connections
• Hesitation or stumbling under acceleration
• Poor fuel pressure readings
• The hose appears original or aged on a classic 924S or 944

Preventative replacement is strongly recommended during fuel pump or fuel filter service, especially on vehicles over 20 years old.

Replacing this hose helps prevent fuel leaks, improves engine reliability and protects against potential fire risk.

Quality Porsche Fuel System Parts from Design911

At Design911, we supply high-quality replacement fuel hoses designed to meet OEM standards for classic Porsche models. This fuel hose ensures correct fitment, proper pressure handling and long-term durability.

Using the correct specification hose protects your fuel system, improves reliability and maintains safe vehicle operation.

Key Benefits at a Glance

• Direct replacement for Porsche part 94435604112
• Connects fuel pump to fuel filter securely
• Maintains stable fuel pressure
• Reduces risk of leaks and fuel system failure
• Suitable for Porsche 924S and 944
• Ideal for maintenance, restoration and preventative repair       

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94435604114

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Rennline High Pressure Fuel Rail 
Upgrade your aging factory fuel system with Rennline’s High Pressure Fuel Rail Line. Designed to outperform and outlast the original, this premium replacement features a modern braided fuel line paired with precision CNC-machined billet aluminum ends, ensuring a secure, leak-free fit. Unlike other aftermarket options, this rail follows the OEM routing to prevent interference with the rocker cover. Perfect for stock replacements or high-performance builds.

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 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 11 

Key Features:

• Modern braided fuel hose for enhanced durability and higher pressure tolerance
• CNC-machined billet ends for an OEM+ look and performance
• Includes 10mm & 8mm to -6 JIC compression fittings
• Ideal for both factory replacement and performance applications

What the Product Does

• Delivers high-pressure fuel reliably to the injectors.
• Withstands higher fuel system pressures compared to aging OEM parts.
• Prevents leaks with precision-machined fittings and modern hose construction.
• Maintains factory routing for a clean, interference-free fit.

Symptoms of a Failing or Worn Fuel Rail

• Strong fuel smell from the engine bay.
• Visible leaks or damp spots on the fuel line/rail. 
• Hard starting or poor performance under load.
• Fuel pressure loss or misfires.
• Cracked or brittle factory lines due to age. 

Common Reasons for Failure

• Aging Materials: Original rubber fuel lines harden and crack over time.
  
• Heat Exposure: Constant engine bay heat accelerates degradation.
  
• Fuel Pressure Stress: Stock parts may struggle with modern fuel blends and higher pressures.
  
• Corrosion: Factory metal ends may rust or weaken.

Why Replace?

• Prevents dangerous fuel leaks and fire hazards.
• Restores reliable fuel delivery and performance.
• Provides a long-term solution with modern materials.
  
• Supports both daily driving and high-performance builds.
• Eliminates common clearance issues with poorly designed aftermarket options.

 Ideal For: Porsche 924S, 944, and 951 owners seeking a safe, reliable upgrade to their fuel delivery system - whether for everyday driving or high-performance tuning.

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M141

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