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Porsche // 944 (1982-1991) // Any
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Fuel Tank & Parts
- 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 1980-85
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GTS 2.0L 1982
- 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
12 x 17mm Braided Fuel Tank Breather Hose – Fuel Tank
Ventilation
Sold per metre
High-quality 12 x 17mm braided fuel tank breather hose designed for use in fuel tank ventilation systems across a wide range of vehicles.
This hose is specifically engineered to safely transport
fuel vapours, maintaining proper tank ventilation and preventing pressure
build-up within the fuel system. The braided outer layer provides added
durability and protection while retaining flexibility for easy routing.
Fits:
- 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 1980-85
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GTS 2.0L 1982
- 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
Diagram ref no 39
Sold per metre, this hose allows for precise length requirements, making it ideal for maintenance, repair, or restoration of fuel tank breather and ventilation systems.
Key Features
• 12mm internal diameter, 17mm outer diameter
• Braided outer layer for durability and protection
• Designed for fuel tank breather and ventilation systems
• Suitable for fuel vapour transport
• Sold per metre for custom length applications
• Flexible and easy to install
• OEM-style appearance and performance
Function and Purpose
This breather hose is an essential component of the fuel system.
It helps to:
• Vent fuel vapours safely from the tank
• Prevent pressure build-up within the fuel system
• Maintain correct tank ventilation
• Support efficient fuel system operation
• Reduce risk of fuel odours and vapour leaks
Why Replace Breather Hoses
Over time, breather hoses can degrade due to fuel vapours and heat.
Common issues include:
• Cracking or splitting
• Hardening and reduced flexibility
• Fuel vapour leaks
• Blocked or restricted airflow
Replacing worn hoses ensures proper ventilation and safe system operation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
N0203621
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 944 2.5L 8V 1982-87
Braided Fuel Tank Breather Hose – 400mm Long
High-quality braided fuel tank breather hose designed for Porsche 944 models, supplied in a 400mm pre-cut length for direct replacement.
This hose is used within the fuel tank ventilation system to
safely manage fuel vapours and maintain correct tank pressure. The braided
outer layer provides enhanced durability and protection while maintaining
flexibility for easy installation in the engine bay or underbody routing.
Fits:
- Porsche 924 2.0L 1984-85
- Porsche 924S 2.5L 1986-87
- Porsche 944 2.5L 8V 1984-87
Diagram ref no 24
Manufactured to OEM specifications, this hose ensures correct fitment and reliable performance, making it ideal for maintenance, repair, or restoration of Porsche 944 fuel systems.
Key Features
• Genuine-style braided breather hose
• 400mm pre-cut length for easy installation
• Suitable for Porsche 944 models
• Designed for fuel tank ventilation systems
• Resistant to fuel vapours and engine bay conditions
• Flexible and durable construction
• OEM-style fit and appearance
Function and Purpose
This breather hose is an essential component of the fuel system.
It helps to:
• Vent fuel vapours safely from the fuel tank
• Maintain correct internal tank pressure
• Prevent vapour build-up and system imbalance
• Support efficient fuel system operation
• Ensure safe and reliable vehicle performance
Why Replace Breather Hoses
Over time, breather hoses degrade due to heat and fuel vapour exposure.
Common issues include:
• Cracking or splitting
• Hardening and reduced flexibility
• Fuel vapour leaks
• Restricted or inefficient ventilation
Replacing worn hoses restores proper ventilation and system safety.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94420145301
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 944 2.5L 8V 1982-87
Fuel Tank Breather Hose
High-quality braided fuel tank breather hose designed for Porsche 924 and 944 models, supplied in a 400mm length to be trimmed to for direct replacement.
This hose is used within the fuel tank ventilation system to
safely manage fuel vapours and maintain correct tank pressure. The braided
outer layer provides enhanced durability and protection while maintaining
flexibility for easy installation in the engine bay or underbody routing.
Fits:
- Porsche 924 2.0L 1976-83
- Porsche 944 2.5L 8V 1982-83
Key Features
• Genuine-style braided breather hose
• 400mm pre-cut length for easy installation
• Suitable for Porsche 924 and 944 models
• Designed for fuel tank ventilation systems
• Resistant to fuel vapours and engine bay conditions
• Flexible and durable construction
• OEM-style fit and appearance
Function and Purpose
This breather hose is an essential component of the fuel system.
It helps to:
• Vent fuel vapours safely from the fuel tank
• Maintain correct internal tank pressure
• Prevent vapour build-up and system imbalance
• Support efficient fuel system operation
• Ensure safe and reliable vehicle performance
Why Replace Breather Hoses
Over time, breather hoses degrade due to heat and fuel vapour exposure.
Common issues include:
• Cracking or splitting
• Hardening and reduced flexibility
• Fuel vapour leaks
• Restricted or inefficient ventilation
Replacing worn hoses restores proper ventilation and system safety.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
N0203791
The product you are viewing cross references to these numbers
- 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 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
Fits:
Porsche 944-2 (Facelift) 2.5L 1985-88
Porsche 944-2 2.7L 1989
Porsche 944 S 2.5L 1987-88
Porsche 944 S2 3.0L 1989-91
Porsche 944 Turbo / S 2.5L 1986-91
Porsche 968 3.0L 1992 - Models Without Sports Suspension (PR 030)
Diagram ref. 10.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95135606103
The product you are viewing cross references to these numbers
- 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 968 3.0L 1992-94
Fuel Return Hose to Tank
High-quality replacement fuel return hose designed for Porsche 944 models, connecting the fuel system return line directly to the fuel tank.
This hose plays a critical role in the fuel system by safely
returning excess fuel from the engine back to the tank. It helps maintain
proper fuel circulation and stable pressure, ensuring efficient engine
operation and long-term reliability.
Fits:
- 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 968 3.0L 1992-94
- Models Without Sports Suspension (PR 030)
Diagram ref. 10
Manufactured to OEM specifications, this fuel return 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 return hose (to tank)
• Suitable for Porsche 944 models
• 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 component 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.
95135606103
The product you are viewing cross references to these numbers
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
Fits:
Porsche 944 >>1989
Click 'Zoom in' for large parts diagram.
Diagram ref no 21
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95120131201
The product you are viewing cross references to these numbers
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1989-91
Fits:
Porsche 944 1990 - 1991
Diagram ref no 21
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95120131202
The product you are viewing cross references to these numbers
- 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 1982-87
Fits:
Porsche 924 1976-85 (Not GT/Turbo)
Porsche 924 S 1986-88
Porsche 944 1982-85
Click 'Zoom in' for large parts diagram.
Diagram ref no 32
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
477201302
The product you are viewing cross references to these numbers
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
Fits:
Porsche 944 >>1989
Click 'Zoom in' for large parts diagram.
Diagram ref no 21
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95120131201
The product you are viewing cross references to these numbers
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1989-91
Fits:
Porsche 944 1990-91
Click 'Zoom in' for large parts diagram.
Diagram ref no 21
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95120131202
The product you are viewing cross references to these numbers
- 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 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
Fits:
Porsche 944 2/85-91
Porsche 968 1992-95
Click 'Zoom in' for large parts diagram.
Diagram Ref No 9
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94464103703
The product you are viewing cross references to these numbers
- 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 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
OE Match fuel tank sending unit for Porsche 944 / 968 applications. This in-tank component measures the fuel level and provides the signal used by the dashboard gauge.
Fits
Porsche 944 2/85-91
Porsche 968 1992-95
Confirm the vehicle's production date and original sender reference before selecting a replacement.
Diagram ref no: 9
What This Product Does
The sender allows the instrument panel to indicate how much fuel remains in the tank. Its role is fuel measurement rather than pumping petrol or controlling delivery pressure, so an incorrect gauge reading should be investigated separately from engine-running faults.
Functions
- Monitors the quantity of fuel remaining.
- Communicates fuel level information to the dashboard instrument.
- Supports refuelling decisions when the sender, wiring and gauge operate correctly.
Technical Details
- Brand: OE Match.
- Part reference: 94464103703.
- Installation location: inside the fuel tank.
- Internal diagram identification: tank gauge.
- Associated diagram components include sealing ring 94420132700 and union nut 95120137500.
Symptoms of Fault
- The gauge remains at either end of its scale.
- Displayed fuel quantity changes intermittently or unexpectedly.
- Adding fuel produces little or no indicated change.
- The low-fuel warning disagrees with the actual tank contents.
- Sender terminals show corrosion or damaged connections.
Why Replacement Matters
A confirmed sender fault can make the remaining fuel quantity difficult to judge. Replacing the defective component helps restore useful level indication, but wiring, earth connections and the gauge should also be checked to avoid replacing a serviceable sender. Inspect the mounting seal during the repair, particularly where fuel odours are present.
FAQs
- Does an inaccurate reading prove the sender has failed?
No. Poor connections, wiring defects or an instrument fault can cause similar behaviour. - Should the seal be renewed during fitting?
Renew an aged or damaged sender seal to address a potential source of fuel vapour leakage. - Will replacement resolve poor starting?
Not necessarily. This component reports fuel level; starting problems require their own diagnosis.
Check fitment for your specific vehicle (model, year, engine) before ordering.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94464103703
The product you are viewing cross references to these numbers
- 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 1982-87
Fits:
Porsche 924 2.0ltr - 1976 to 1985 (not Turbo/GT)
Porsche 924S 2.5ltr - 1986 to 1988
Porsche 944 2.5ltr06/1981 to 07/1985
Diagram ref no 33, 34 and 35
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
477201302
The product you are viewing cross references to these numbers
- 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 1982-87
This OE Match metal fuel tank has a 62L capacity and suits the specified Porsche 924, 924S and early 944 applications. It provides a replacement option when the existing tank is damaged, corroded or persistently contaminated.
Fits
- Porsche 924 2.0L 1975-1985 (not Turbo/GT)
- Porsche 924S 2.5L 1986-1988
- Porsche 944 2.5L 06/1981-07/1985
Check fitment for your specific vehicle (model, year, engine) before ordering. The Turbo/GT exclusion applies to this product despite references to those models within the assembly diagrams.
Diagram ref no 1
What This Product Does
The tank holds petrol for the vehicle’s fuel system. It works with separate supply connections, ventilation components and the fuel-level sender; faults in those associated parts should also be investigated when tracing odours or leakage.
Functions
- Stores the vehicle’s petrol supply.
- Provides the reservoir feeding the fuel-delivery system.
- Works with the filler, sender and breather arrangements.
Technical Details
- Product reference: 477201021F. Capacity: 62 litres. Construction: metal. Brand: OE Match.
Symptoms of Fault
- Petrol odour, particularly following refuelling.
- Wetness or staining near seams, outlets or sender connections.
- Sediment discovered during servicing or repeatedly obstructed fuel filters.
- Visible deterioration around the tank and its supporting hardware.
Why Replacement Matters
Renewal may be necessary where corrosion has weakened the tank, physical damage has caused leakage or internal deposits continue contaminating the fuel. Inspect surrounding hoses, mounting straps, seals and ventilation connections during the repair rather than assuming every related fault originates in the tank.
FAQs
- Does a petrol smell confirm tank failure?
No. Check filler hoses, ventilation pipework and sealing points before identifying the tank as the cause. - Can cleaning resolve contamination?
It may help, but a severely rusted interior can continue releasing particles after cleaning. - Which associated parts need inspection?
Examine the sender seal, outlet seals, breather grommets, filler connections and retaining hardware while access is available.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
477201021F
The product you are viewing cross references to these numbers
- 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 1982-87
This Dansk 62-litre fuel tank is a direct replacement component designed to store and supply fuel safely to the vehicle’s engine. It is built to match OE specifications for correct fitment and reliable performance. The tank stores petrol securely and feeds it to the fuel system through the pump and fuel lines, ensuring a stable and consistent fuel supply during vehicle operation.
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 1982-87
Diagram Ref No 1
What This Product Does:
- Storing fuel safely until it is required by the engine
- Supplying fuel to the fuel pump and lines for delivery to the engine
- Maintaining consistent fuel flow to support proper engine performance
- Preventing fuel leakage and vapour escape through sealed construction
- Fuel leaks or fuel smell around the vehicle
- Visible rust or corrosion on the tank
- Fuel contamination caused by internal rust debris
- Reduced fuel capacity due to deformation or internal damage
- Fuel delivery issues or engine stalling caused by debris entering the system
Why Replacement Matters:
- Safety – Prevents dangerous fuel leaks and fire hazards
- Engine reliability – Ensures clean, uninterrupted fuel supply
- Fuel system protection – Stops rust particles from contaminating pumps and injectors
- Correct vehicle operation – Restores original fuel capacity and system integrity
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
477201021F
The product you are viewing cross references to these numbers
- 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 1980-85
- 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
The Genuine Porsche Hose, 12 × 2.5 mm (Part Number: 99918107240) is an original equipment hose used within the fuel tank ventilation and fuel vapour management systems of selected classic Porsche models.
Fits:
- 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 1980-85
- 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 hose is listed in Porsche parts catalogues for selected Porsche 911 SC, 930 Turbo and 944 applications, where it connects components of the fuel tank ventilation or activated charcoal canister system.
The fuel tank ventilation system manages the movement of air and petrol vapour as fuel is consumed and temperature changes affect pressure inside the tank.
The hose provides a flexible passage between the specified ventilation components, helping maintain the intended vapour routing and allowing the fuel tank to breathe through its designed ventilation circuit.
Manufactured to Porsche's original equipment specification, the hose has nominal dimensions of 12 × 2.5 mm, corresponding to a 12 mm internal diameter and 2.5 mm wall thickness.
The hose is intended to be cut to the correct length for its particular installation, where supplied as bulk hose.
During normal operation, fuel tank ventilation hoses are exposed to petrol vapour, changing temperatures and vehicle vibration. These conditions can gradually affect the flexibility and condition of the hose material.
Over time, an ageing hose may become brittle, cracked, split, swollen or loose at its connection points.
A damaged hose can allow petrol vapours to escape or interfere with the proper operation of the ventilation circuit. This may produce a persistent fuel smell, particularly after refuelling or when the vehicle is parked in warm conditions.
Replacing a defective hose with a Genuine Porsche component helps restore the intended fuel vapour connections, reduce unwanted vapour leakage and maintain the original ventilation arrangement.
Ideal for classic Porsche fuel system repairs, tank ventilation maintenance and restoration projects, this Genuine Porsche Hose provides a correctly specified replacement for compatible applications.
What This Product Does:
The hose forms part of the vehicle's fuel tank ventilation or fuel vapour management circuit.
Its primary function is to provide a flexible passage for air and petrol vapour between designated components.
As the engine consumes fuel, the volume of liquid within the tank decreases. The ventilation system allows the resulting changes in tank pressure to be managed.
Changes in ambient temperature also affect fuel vapour pressure. The tank ventilation arrangement accommodates these changes through its connecting hoses, expansion chambers and other components.
In vehicles fitted with an activated charcoal canister, fuel vapours are routed through the appropriate vapour management system rather than being released freely.
The hose supports these functions by maintaining the intended connection.
Its main functions include:
- Supporting fuel tank ventilation: Provides a passage for air and fuel vapour within the designated circuit.
- Helping manage tank pressure: Supports normal pressure equalisation as fuel volume and temperature change.
- Connecting ventilation components: Links the relevant expansion chambers, pipes, fittings or charcoal canister components.
- Maintaining vapour routing: Helps keep fuel vapour within the intended ventilation pathway.
- Reducing unwanted vapour escape: Maintains a secure connection when correctly installed.
- Accommodating vehicle movement: Provides flexibility between connected components.
- Maintaining unrestricted flow: Allows air and vapour to pass through the specified hose section.
- Supporting emissions equipment: Helps preserve the original vapour management arrangement on vehicles equipped with an activated charcoal canister.
- Maintaining factory hose routing: Restores the correct hose size and installation arrangement.
- Supporting fuel system reliability: Helps prevent faults associated with cracked, collapsed or disconnected ventilation hoses.
Symptoms Of Wear Or Failure:
Ageing fuel tank ventilation hoses can deteriorate through prolonged exposure to petrol vapour, heat, vibration and repeated changes in temperature.
Common symptoms and signs of a worn or damaged hose include:
- Petrol smell around the vehicle: Escaping vapours may create a noticeable fuel odour.
- Fuel smell after refuelling: Vapour leakage may become more noticeable when the tank is full.
- Fuel smell in warm weather: Increased vapour formation may expose weaknesses in the ventilation circuit.
- Visible cracking: The hose surface may develop cracks as the material ages.
- Hardened or brittle hose: Loss of flexibility can affect sealing around the connection fittings.
- Split hose ends: Cracking near connection points may allow vapour leakage.
- Loose hose connections: Deteriorated hose ends may no longer grip fittings securely.
- Disconnected hose: An insecure connection can leave part of the vapour circuit open.
- Swollen or distorted material: Ageing or chemical incompatibility may affect the hose shape.
- Collapsed hose sections: Deformation may restrict airflow through the ventilation circuit.
- Kinked hose routing: Incorrect installation can obstruct the intended ventilation passage.
- Visible abrasion: Contact with sharp edges or neighbouring components may wear through the hose.
- Unusual fuel tank pressure symptoms: A restricted ventilation system may contribute to excessive pressure or vacuum in the tank.
- Damaged hose clamps: Loose or corroded clamps may compromise secure attachment.
- Persistent vapour odours after servicing: Incorrect routing or inadequate sealing may leave a connection leaking.
Why Replacement Matters:
Replacing a deteriorated ventilation hose helps maintain the correct operation of the fuel tank breathing and vapour management system.
An old hose may become cracked or brittle, allowing fuel vapours to escape around its surface or connection points.
A collapsed or incorrectly routed hose may also restrict the normal movement of air and vapour through the system.
Installing a Genuine Porsche replacement Hose 99918107240 helps to:
- Restore the intended ventilation connection: Replace a defective section of hose.
- Reduce petrol vapour leakage: Address unwanted fuel odours caused by a confirmed hose defect.
- Maintain fuel tank breathing: Support the intended movement of air and vapour.
- Help prevent ventilation restrictions: Replace collapsed or obstructed hose sections.
- Restore secure hose attachment: Renew hardened or split hose ends.
- Preserve original hose dimensions: Use the specified 12 × 2.5 mm hose reference.
- Maintain factory hose routing: Cut and fit the correct length for the relevant application.
- Support vapour management components: Maintain connections to expansion chambers or activated charcoal canisters.
- Reduce further deterioration: Replace ageing hose material before complete failure.
- Support fuel system refurbishment: Renew old hoses during fuel tank or emissions system servicing.
- Preserve classic Porsche originality: Maintain the factory-style ventilation system.
- Provide Genuine Porsche quality: Use an original equipment hose reference for the specified application.
Replacement is recommended when the hose shows cracks, brittleness, swelling, damage, persistent vapour leakage or an insecure fit.
The surrounding clamps, connection fittings, expansion chambers and other ventilation hoses should also be inspected.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99918107240
The product you are viewing cross references to these numbers
Fuel Tanks & Components – Reliable Fuel Storage and Performance for Porsche Vehicles
Your Porsche’s fuel tank is the foundation of its fuel system, storing and supplying petrol safely to the engine. Working alongside essential components such as tank straps, seals, fittings, filters, and breather valves, the fuel tank ensures efficient flow, pressure stability, and safety in every driving condition.
At Design911, we offer a wide range of fuel tanks and replacement parts designed for Porsche models across generations — from air-cooled classics to high-performance GT cars. Each component is built from corrosion-resistant materials to deliver long-lasting durability, leak-free sealing, and reliable performance.
Whether you’re restoring a vintage 911 or maintaining a modern Porsche, our manufacturer-quality tanks and fittings provide superior build quality and exact fitment for peace of mind and long-term reliability.
What Do Fuel Tanks and Their Components Do?
The fuel tank stores petrol and ensures safe, uninterrupted supply to the fuel pump and injection system. Supporting parts such as hoses, straps, seals, and sensors maintain pressure balance and structural integrity.
Core Functions:
- Stores
and protects fuel from contamination and evaporation.
- Provides
consistent delivery to the fuel pump and injectors.
- Ventilation
and pressure regulation via breather systems.
- Ensures safe operation through leak prevention and corrosion resistance.
A properly functioning tank and its fittings are vital for engine performance, efficiency, and safety — especially in performance-focused Porsche engines.
Why Do Fuel Tanks and Components Fail?
Fuel tanks and fittings are constantly exposed to harsh conditions — fuel vapours, moisture, and road debris — all of which can lead to deterioration over time.
Common Causes of Failure Include:
- Corrosion
and rust due to moisture and ethanol-blended fuels.
- Cracked
hoses or fittings, leading to leaks and pressure loss.
- Deteriorated
seals or gaskets causing vapour emissions or odours.
- Physical
damage from road debris or accidents.
- Internal contamination from old fuel or sediment buildup.
Symptoms of fuel tank issues include fuel smells, visible leaks, poor pressure, or inconsistent fuel delivery, all of which affect performance and safety.
Why Replace with Precision-Engineered Fuel Tanks and Parts?
Upgrading or replacing damaged or aged components restores the integrity and safety of your Porsche’s fuel system. Our precision-fit, corrosion-resistant tanks and parts are designed to maintain proper fuel delivery and ventilation while preventing leaks and emissions.
Key Benefits:
- Restores reliable fuel storage and pressure regulation.
- Prevents leaks, vapour loss, and performance issues.
- Improves fuel efficiency and drivability.
- Constructed from high-grade steel or composite materials.
- Direct-fit
replacement for classic and modern Porsche models.
- Long-lasting protection against corrosion and vibration damage.
Essential for restorations and repairs, these components help ensure your Porsche continues to perform with precision and confidence.
Highlights:
- High-quality Porsche fuel tanks and replacement components.
- Corrosion- and pressure-resistant construction.
- Direct-fit
compatibility for a wide range of Porsche models.
- Ensures safe, efficient fuel storage and delivery.
- Ideal for restorations, upgrades, and maintenance projects.
- Designed for long-term reliability and performance.