Fuel bleeder expansion tank, White. Porsche 911 1969-73  ❭  90120106222

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