Fuel Lines & Breather Hoses

Braided Fuel Hose (Sold by the Metre) - 9.3mm Internal Diameter / 15.3mm Outer Diameter. 

This high-quality braided fuel hose is designed for multiple uses within the fuel system of various vehicles. It offers extremely low fuel permeability, excellent heat resistance, and high flexibility, making it a reliable choice for demanding applications.

Fits:
Porsche 911 Carrera 1965-89
Porsche 911 Turbo (930) 1975-89 
Porsche 914 1970-76
Porsche 924 1976-85
Porsche 928 1978-91

Comparable to Porsche part number(s): N0203591 & PCG020359A

Specifications:

Inner Diameter (ID): 9.3mm
Outer Diameter (OD): 15.3mm 
Material: FPM/ECO/AR/ECO (Type 3E) – Compliant with DIN 73379-1
Complies With: EU End-of-Life Vehicles Directive

NOTE: This product is not suitable for use in fuel tanks, or for gear and/or engine oils. Always follow the manufacturer's specifications regarding operating temperatures, especially for high-performance engines exposed to extreme heat.

Related reference numbers
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PCG020359A

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Fuel breather hose.


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

Click 'Zoom in' for large parts diagram.
Diagram ref no 45

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477201393C

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Porsche 924 Fuel Hose - Accumulator to Fuel Line

Accurate Fuel Delivery and System Reliability

The fuel hose from the accumulator to the fuel line is an essential part of the Porsche 924 fuel delivery system. It connects the fuel accumulator to the main fuel line, allowing pressurised fuel to flow consistently under varying engine demands.

Fits:

• Porsche 924 2.0L 1979-85
• Porsche 924 Turbo 2.0L 1979-81
• Porsche 924 Turbo 2.0L 1982-84
• Porsche 924 Carrera GT 2.0L 1981
• Porsche 924 Carrera GTS 2.0L 1982

From Chassis Numbers
9249103158>>
9249400051>>

Diagram Ref No 14

This hose plays a crucial role in maintaining correct fuel pressure, stabilising fuel delivery and preventing fuel leaks.

What This Fuel Hose Does

In the Porsche 924, the fuel system includes a fuel accumulator that smooths pressure fluctuations and ensures steady fuel supply, especially at idle and under load. This hose connects the accumulator to the main fuel line and:

• Maintains sealed fuel transfer under pressure
• Allows the fuel accumulator to do its pressure-stabilising function
• Prevents fuel spray and loss under engine vibration
• Helps maintain consistent fuel pressure to injectors

Without a reliable accumulator-to-fuel-line hose, the fuel system cannot sustain proper pressure. That affects engine performance, idle quality and efficiency.

Why Fuel Hoses Fail

Fuel hoses are exposed to harsh conditions over time including constant fuel contact, heat cycling, vibration and environmental contamination. Common reasons this fuel hose fails include:

• Rubber hardening and cracking with age
• Fuel permeation that degrades inner hose layers
• Exposure to heat from the engine bay
• Swelling or softening from prolonged fuel contact
• Chafing or abrasion against surrounding components

As the hose ages, it can develop leaks, bulges or internal collapse, impairing fuel flow and pressure.

When You Should Replace This Fuel Hose

You should consider replacing the fuel hose if you observe any of the following:

• Visible cracks, splits or bulges in the hose
• Fuel smell while the engine is running or parked
• Fuel leaks under the vehicle around the fuel rail or accumulator
• Poor idle quality, hesitation or stalling
• Fuel pressure loss or drop under load 
• Regular maintenance on original or aged fuel system components

Because fuel leaks pose both performance and safety risks, replacing this hose is essential when deterioration is evident or if it has never been renewed on an older Porsche 924.

Quality Fuel System Parts from Design911

At Design911, we supply genuine and high-quality replacement hoses for Porsche fuel systems. The accumulator to fuel line hose is engineered to match OE specifications and restore reliable fuel delivery.

Using a correct fuel hose ensures:

• Safe, sealed fuel transfer
• Stable fuel pressure under all driving conditions
• Reduced risk of fire or fuel spray
• Improved engine smoothness and responsiveness       

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477209047B

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Porsche 924 Fuel Hose - Fuel Line to Fuel Filter

Critical Fuel Delivery Hose for Porsche 924

The fuel hose from the fuel line to the fuel filter is an integral component of the Porsche 924 fuel delivery system. It connects the engine’s main fuel line to the fuel filter, ensuring a clean, continuous flow of fuel to the engine.

This hose maintains sealed fuel transfer and helps protect the fuel system from premature wear, contamination and pressure loss.

Fits:

• Porsche 924 2.0L 1979-85
• Porsche 924 Turbo 2.0L 1979-81
• Porsche 924 Turbo 2.0L 1982-84
• Porsche 924 Carrera GT 2.0L 1981
• Porsche 924 Carrera GTS 2.0L 1982

From Chassis Numbers
9249103158>>
9249400051>>

Diagram Ref No 38

What This Fuel Hose Does

In the Porsche 924, fuel flows from the tank through the main fuel line and then to the fuel filter. The fuel filter removes debris and contaminants before the fuel continues on to the fuel pump and injectors.

This hose serves to:

• Connect the fuel line to the fuel filter securely
• Maintain sealed fuel transmission under pressure
• Support consistent fuel flow to the filter
• Prevent fuel leaks that can cause performance issues and safety hazards

Without a properly sealing hose between the fuel line and fuel filter, fuel delivery can be disrupted, leading to poor engine performance and potential system failure.

Why Fuel Hoses Fail

Fuel hoses are constantly exposed to harsh operating conditions, including fuel contact, heat, vibration and movement. Common reasons this fuel hose fails include:

• Rubber hardening and cracking due to age and heat cycling
• Fuel permeation that weakens hose integrity
• Swelling or softening from prolonged contact with fuel
• Abrasion or chafing against nearby components
• Environmental exposure and chemical degradation

Over time, these factors can cause the hose to crack, split or collapse internally, reducing fuel flow and increasing the risk of fuel leaks.

When You Should Replace This Fuel Hose

You should consider replacing this fuel line to fuel filter hose if you notice any of the following:

• Visible cracks, splits or deformation in the hose
• Fuel smell around the engine or along the fuel line
• Fuel leaks near the hose, filter or fuel line connections
• Poor engine performance such as hesitation or misfire
• Fuel pressure loss on acceleration or idle
• Original hose has never been replaced on an older Porsche 924

Replacing this hose proactively during maintenance avoids fuel supply interruption and eliminates a common source of fuel leaks.

Quality Fuel System Parts from Design911

At Design911, we supply high-quality replacement fuel hoses engineered to meet OEM specifications. The fuel line to fuel filter hose is designed to restore reliable fuel delivery and help maintain safe, leak-free operation.

Using a correct fuel hose ensures:

• Stable fuel flow throughout the system
• Reduced risk of leaks and fuel pressure loss
• Improved engine smoothness and responsiveness
• Safer fuel system performance under all driving conditions

 
Key Benefits at a Glance

• OEM-spec fuel hose for Porsche 924
• Connects fuel line to fuel filter securely
• Maintains consistent fuel flow
• Reduces risk of leaks and pressure loss
• Ideal for repair, maintenance or restoration
• Engine performance and safety improvement       

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477209047A

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Porsche 924 Fuel Hose - Fuel Pump to Fuel Accumulator

Essential Fuel System Hose for Porsche 924

The fuel hose from the fuel pump to the fuel accumulator is a vital component of the Porsche 924 fuel delivery system. It connects the output of the fuel pump to the fuel accumulator, ensuring stable fuel pressure and smooth delivery to the rest of the fuel system.

This hose plays a key role in maintaining proper fuel pressure, preventing fuel leaks and avoiding fuel starvation under varied driving conditions.

Fits:

• Porsche 924 2.0L 1979-85
• Porsche 924 Turbo 2.0L 1979-81
• Porsche 924 Turbo 2.0L 1982-84
• Porsche 924 Carrera GT 2.0L 1981
• Porsche 924 Carrera GTS 2.0L 1982

From Chassis Numbers
9249103158>>
9249400051>>

Diagram Ref No 10

What This Fuel Hose Does

In the Porsche 924, the fuel pump draws fuel from the tank and sends it toward the engine. Before entering the main fuel line and accumulator, the fuel must travel through a dedicated hose that connects the pump to the accumulator.

The fuel pump to accumulator hose performs the following functions:

• Transfers pressurised fuel from the pump to the accumulator
• Supports stable fuel pressure throughout the system
• Prevents fuel leakage at the connection point
• Enables the accumulator to smooth pressure fluctuations
• Ensures consistent fuel delivery under engine load

Without a properly functioning hose in this position, fuel pressure can drop, leading to engine performance issues and potential stalling.

Why Fuel Hoses Fail

Fuel hoses are exposed to constant fuel contact, heat and vibration. Over time, these stresses can cause the hose to deteriorate. Common failure causes include:

• Rubber hardening and cracking from age and heat cycling
• Fuel permeation that weakens internal hose structure
• Swelling or softening due to prolonged fuel exposure
• Vibration or chafing against surrounding components
• Environmental degradation or contamination

When fuel hoses degrade, they can split, bulge or collapse internally, disrupting fuel flow and compromising fuel pressure.

When You Should Replace This Fuel Hose

You should replace the fuel pump to accumulator hose if you see any of the following symptoms:

• Visible cracks, splits or deformation in the hose material
• Fuel smell around the fuel pump or under the vehicle
• Fuel leaks at the hose or connection points
• Engine hesitation, stumbling or rough running under load
• Loss of fuel pressure during acceleration or idle
• Old or original hose showing age on a high-mileage Porsche 924

Replacing the hose proactively as part of routine fuel system maintenance can prevent sudden fuel pressure loss and avoid damage to other fuel system components.

Quality Fuel System Parts from Design911

At Design911, we supply high-quality replacement fuel hoses engineered to meet or exceed OEM standards. The fuel pump to accumulator hose is designed to restore reliable fuel transfer and preserve stable fuel pressure in the Porsche 924.

Using a correct and durable fuel hose ensures:

• Safe and sealed fuel delivery
• Consistent performance under all driving conditions
• Reduced risk of leaks and fuel pressure drops
• Increased reliability of the fuel system

Key Benefits at a Glance

• OEM-spec fuel pump to accumulator hose for Porsche 924
• Maintains stable fuel pressure and delivery
• Reduces risk of leaks and performance issues
• Ideal for fuel system service and routine maintenance
• Supports safe and reliable engine operation       

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477209093A

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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

Click 'Zoom in' for large parts diagram.
Diagram ref no 22

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PCG209071C

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Fuel Hose Fuel pump to In-tank pump.

Fits:
Porsche 924 1976-85

Click 'Zoom in' for large parts diagram.
Diagram ref no. 2

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477209199D

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Fuel hose.

 


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

Click 'Zoom in' for large parts diagram.
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

Click 'Zoom in' for large parts diagram.
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

Click 'Zoom in' for large parts diagram.
Diagram ref no 7

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99959197540

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Fuel line.

#porsche

Fits:
Porsche 924S 1986-88

Click 'Zoom in' for large parts diagram.
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

Click 'Zoom in' for large parts diagram.
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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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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