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- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Fuel Expansion Tank – US Cars
Restore the correct operation of your classic Porsche fuel
system with this Fuel Expansion Tank. Specifically designed
for USA specification Porsche 911 models built between 1970 and 1973,
this high-quality replacement is manufactured to OE specifications, ensuring
excellent fitment, durability and reliable fuel vapour management.
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Diagram ref no 3
The fuel expansion tank is an integral part of the
evaporative emissions and fuel venting system. It allows fuel to safely expand
as temperatures rise while separating liquid fuel from vapours before they are
returned through the venting system. This helps prevent fuel overflow, reduces
fuel odours and maintains safe pressure within the fuel tank.
Over time, the original expansion tank can become brittle, crack or suffer internal deterioration due to prolonged exposure to fuel, heat and age. Replacing a worn or damaged tank restores safe operation and helps preserve the originality of your Porsche 911.
What Does the Fuel Expansion Tank Do?
The fuel expansion tank is designed to safely manage expanding fuel and fuel vapours generated inside the fuel tank.
Its functions include:
- Allowing fuel to expand safely during temperature changes.
- Separating liquid fuel from fuel vapours.
- Preventing fuel overflow.
- Helping maintain correct fuel tank pressure.
- Supporting the vehicle's evaporative emissions system.
- Reducing fuel vapour loss.
- Protecting surrounding components from fuel contamination.
A properly functioning expansion tank contributes to both vehicle safety and efficient fuel system operation.
Why Replace the Fuel Expansion Tank?
After decades of service, original plastic expansion tanks often deteriorate due to constant exposure to fuel vapours, heat cycles and ageing.
Replacement is recommended if the tank has:
- Cracks or splits.
- Fuel leaks.
- Brittle plastic.
- Fuel odours.
- Damaged hose connections.
- UV or age-related deterioration.
- Internal contamination.
- Signs of previous repairs.
Replacing the tank helps eliminate common fuel system issues while restoring reliable vapour management.
Symptoms of a Failing Fuel Expansion Tank
A deteriorating expansion tank may cause:
- Strong petrol smells around the vehicle.
- Fuel leaks in the front luggage compartment.
- Dampness around vent hoses.
- Fuel overflow after refuelling.
- Cracked or discoloured plastic.
- Poor fuel tank venting.
- Perished hose connections.
- Increased fuel vapour emissions.
If any of these symptoms are present, the expansion tank and associated vent hoses should be inspected and replaced where necessary.
Benefits
Installing this OE Match Fuel Expansion Tank provides:
- Restores correct fuel vapour management.
- Helps eliminate petrol odours.
- Reduces the risk of fuel leaks.
- Maintains safe fuel tank pressure.
- Protects surrounding components.
- Restores factory appearance.
- Excellent fit and finish.
- Ideal for concours restorations and routine servicing.
Installation Recommendations
Professional installation is recommended when servicing the fuel venting system.
While replacing the expansion tank, it is advisable to
inspect or replace:
- Fuel vent hoses.
- Rubber connectors.
- Hose clips.
- Fuel filler neck hoses.
- Fuel tank seals.
- Fuel sender gasket.
- Vapour recovery lines.
- Charcoal canister hoses (USA models).
- Fuel tank breather components.
Replacing ageing rubber components at the same time helps ensure a leak-free and reliable fuel system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91120107300
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)
Fuel Bleeder Expansion Tank – White
Restore the integrity and reliability of your classic
Porsche fuel system with this Fuel Bleeder Expansion Tank in
the correct white finish. This high-quality replacement tank is
manufactured to OE specifications, ensuring excellent fitment, durability and
dependable operation.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Diagram ref no 41
The fuel bleeder expansion tank plays an important role within the vehicle's fuel venting system. It allows fuel vapours and expanding fuel to be safely managed as temperatures fluctuate, helping prevent fuel leakage, vapour loss and excessive pressure within the fuel tank. Over time, original plastic tanks can become brittle, crack or discolour, leading to fuel odours, leaks and poor fuel system performance.
Whether you're undertaking a concours-quality restoration or replacing an ageing original component, this OE Match expansion tank restores the factory appearance while ensuring the fuel venting system operates as intended.
What Does the Fuel Bleeder Expansion Tank Do?
The fuel bleeder expansion tank forms part of the Porsche 911 fuel evaporation and venting system.
Its purpose is to:
- Collect expanding fuel during temperature changes.
- Separate liquid fuel from fuel vapours.
- Allow fuel vapours to vent correctly through the fuel system.
- Prevent fuel overflow during cornering or tank expansion.
- Reduce the risk of fuel leaks.
- Help maintain safe fuel tank pressure.
- Protect surrounding components from fuel contamination.
A properly functioning expansion tank is essential for safe and reliable operation of the fuel system.
Why Replace the Fuel Bleeder Expansion Tank?
After decades of exposure to petrol, heat and engine bay temperatures, the original plastic expansion tank commonly deteriorates.
Replacement is recommended if the tank shows signs of:
- Cracks or splits.
- Fuel leaks.
- Strong fuel odours.
- Brittle or weakened plastic.
- UV or age-related deterioration.
- Discolouration.
- Damaged hose connections.
- Previous repairs or sealants.
Replacing a worn expansion tank helps restore the fuel venting system while reducing the risk of fuel vapour leaks and unpleasant petrol smells.
Symptoms of a Failed Fuel Bleeder Expansion Tank
Common symptoms include:
- Strong smell of petrol around the vehicle.
- Fuel leaks in the front luggage compartment.
- Dampness around vent hoses.
- Visible cracks in the plastic tank.
- Fuel overflow after filling.
- Poor fuel venting.
- Perished or loose hose connections.
If these symptoms are present, the expansion tank and associated hoses should be inspected immediately.
Benefits
Installing this OE Match Fuel Bleeder Expansion Tank
provides:
- Restores proper fuel venting.
- Helps eliminate fuel vapour leaks.
- Reduces petrol odours.
- Prevents fuel overflow.
- Maintains correct fuel tank pressure.
- Restores original engine bay appearance.
- Excellent fit and finish.
- Ideal for restoration and routine maintenance.
Installation Recommendations
Professional installation is recommended when servicing the fuel system.
While replacing the expansion tank, inspect or replace:
- Fuel vent hoses. Hose clips.
- Rubber connectors.
- Fuel filler neck hoses.
- Fuel tank seals.
- Fuel sender gasket.
- Fuel tank breather lines.
- Charcoal canister connections (where applicable).
Replacing ageing rubber hoses and seals at the same time helps restore the entire venting system and reduces the likelihood of future fuel leaks.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90120106222
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)
Fits:
Porsche 911 1969-73
Diagram ref no 41
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90120106222
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 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
- Porsche 914 (1970-1976)
- Porsche 912E 4CYL 1976
Braided Fuel Hose (Sold by the Metre) - 7.3mm Internal Diameter / 13.5mm 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 356 1950-65
Porsche 911 Carrera 1965-1977
Porsche 912 1967-69
Porsche 914 1970-76
Comparable to Porsche part number(s): 99918003050 & 9991800305A
Specifications:
Inner Diameter (ID): 7.3mm
Outer Diameter (OD): 13.5mm
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.
9991800305A
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