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- Porsche 944S 2.5L 16V 1987-88
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
Related, superseded, cross reference or alternative numbers for comparison.
94435602720
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- 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
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 914 (1970-1976)
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
Related, superseded, cross reference or alternative numbers for comparison.
PCG020359A
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- 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
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
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
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
477209047B
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- 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
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
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
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
477209047A
The product you are viewing cross references to these numbers