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- Porsche 964 (911) TURBO 3.3L 1991-93
Engine Oil Collection Tank
Restore the reliability and efficiency of your Porsche's dry
sump lubrication system with this OE Match Engine Oil Collection Tank. Manufactured to original equipment specifications, this
premium-quality replacement oil tank provides the correct fit, capacity and oil
flow characteristics required to maintain consistent lubrication and engine
protection.
Fits:
- Porsche 964 (911) TURBO 3.3L 1991-93
Diagram Ref No 21
Unlike conventional wet sump engines, the legendary air-cooled Porsche flat-six uses a sophisticated dry sump lubrication system, where engine oil is stored in a separate external oil collection tank. This design allows for superior oil control during high-performance driving, improved engine cooling and a constant oil supply under hard acceleration, braking and cornering.
Whether you're restoring a 964 Turbo, replacing a corroded original tank or carrying out an engine rebuild, this OE Match oil collection tank is engineered to restore factory performance and reliability.
What Does the Engine Oil Collection Tank Do?
The engine oil collection tank is one of the most important components of Porsche's dry sump lubrication system. It stores the engine's oil supply and works with the scavenge and pressure pumps to ensure a continuous flow of clean oil throughout the engine.
Its functions include:
- Storing the engine's oil supply.
- Maintaining a constant supply of oil to the lubrication system.
- Separating air from the returning engine oil.
- Assisting with engine oil cooling.
- Preventing oil starvation during hard cornering and acceleration.
- Supporting stable oil pressure under all driving conditions.
The large external oil reservoir is a defining feature of Porsche's air-cooled engine design and plays a vital role in engine longevity.
Why Does the Oil Collection Tank Need Replacing?
Over time, the oil tank can become damaged or deteriorate
due to:
- Internal corrosion caused by moisture contamination.
- External rust from road debris, salt and age.
- Impact damage.
- Cracked seams or weld failures.
- Blocked internal baffles or oil return passages.
- Previous accident damage.
- Oil leaks around fittings or mounting points.
Replacing a damaged oil tank helps maintain proper lubrication while preventing costly engine damage caused by oil loss or contamination.
Symptoms of a Failing Oil Collection Tank
Common warning signs include:
- Engine oil leaks.
- Visible corrosion or rust.
- Oil seepage around welded seams.
- Oil contamination.
- Difficulty maintaining the correct oil level.
- Damaged or dented oil tank.
- Oil odours after driving.
If the tank shows signs of corrosion or leakage, replacement is recommended before more serious lubrication issues develop.
When Should the Oil Collection Tank Be Replaced?
Replacement is recommended when:
- Oil leaks are present.
- Corrosion is visible.
- The tank has been dented or damaged.
- Carrying out a complete engine restoration.
- Rebuilding the lubrication system.
- Replacing heavily corroded oil pipes and hoses.
- Restoring originality on a classic Porsche.
Replacing ageing lubrication components helps ensure long-term engine protection and dependable oil pressure.
Why Choose an OE Match Engine Oil Collection Tank?
Our OE Match oil tank is manufactured to closely replicate the original Porsche component.
Benefits include:
- OE-quality fit and finish.
- Correct internal capacity and oil flow characteristics.
- Precision-manufactured steel construction.
- Corrosion-resistant protective coating.
- Compatible with factory oil pipes and fittings.
- Restores reliable lubrication performance.
- Ideal for restoration and engine rebuild projects.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010700108
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