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Oil Tank
By OE Match
- 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
The product you are viewing cross references to these numbers
- Porsche 964 (911) TURBO 3.6L 1991-93
Fits:
Porsche 964 Turbo 3.6L M64.50
Diagram Ref No 21
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96410700120
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- 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
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Oil Filler Cap Seal
High-quality replacement oil filler cap seal designed for a wide range of Porsche models.
This gasket fits within the oil filler cap, ensuring a tight
and secure seal to prevent oil leaks and protect the engine from contamination.
It is an essential component for maintaining proper engine sealing and
cleanliness.
Fits:
Diagram ref no 12
Manufactured to OEM specifications, this seal provides precise fitment and reliable long-term performance—ideal for routine maintenance or resolving oil seepage issues.
Key Features
• Direct replacement oil filler cap seal
• Suitable for multiple Porsche models
• Ensures secure sealing of oil filler cap
• OEM-style fit and performance
• Durable material resistant to heat and oil
• Ideal for maintenance and leak prevention
Function and Purpose
This seal ensures a proper closure of the oil filler cap.
It helps to:
• Prevent engine oil leaks
• Maintain engine cleanliness
• Protect against dirt and contamination
• Support consistent engine performance
Why Replace Your Oil Filler Cap Seal
Over time, seals can degrade due to heat and oil exposure.
Common issues include:
• Oil seepage around the filler cap
• Hardened or cracked seal material
• Reduced sealing effectiveness
• Increased risk of contamination
Replacing the seal restores proper engine sealing and prevents leaks.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970184641
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 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.7L 8V 1988-89
- 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
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Fits:
Porsche 911 SC 1974-83 SPORTMATIC ONLY
Porsche 911 Turbo (3.3L) 09/1977-07/1989
Porsche 964 1989-94
Porsche 968 1992-95
Porsche 924S 1986-88
Porsche 944 2.7L 1989
Porsche 944 S2 3.0L 1989-91
Porsche 944 2.5L Turbo 1986-91
Porsche 944 2.5L Turbo S 1987-88
Porsche 928 S4 / GT / GTS 1987-95
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94410709101
The product you are viewing cross references to these numbers
OEMatch Oil Tank — Fit, Function, Confidence
Oil tanks play a central role in Porsche lubrication systems by storing, circulating and helping to cool engine oil. In dry-sump layouts they also allow lower engine placement while ensuring steady oil delivery under varying loads. OEMatch supplies oil tank options catalogued for Porsche models to support application-specific needs.
Understanding OEMatch Oil Tank
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original oil tank. OE (Original Equipment) refers to parts matching original specifications for the oil tank and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM oil tank engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. Oil tanks store and circulate engine oil, separate air from oil to reduce foaming, and assist temperature regulation so bearings and moving parts receive steady lubrication. OEMatch maintains an extensive Porsche parts catalogue with thousands of part numbers and many OE cross-references to help identify compatible replacements; this coverage helps when matching tanks, breather components, seals and fittings to specific model requirements.
Benefits Include
- Restored oil circulation and pressure stability to protect bearings and camtrain components.
- Improved oil temperature control and reduced overheating risk under sustained load.
- Reduced foaming and improved oil film stability through effective air separation.
- Replacement seals and fittings lower the risk of external leaks and contamination.
Why Oil Tank Wear and Fail
- Cracks or leaks from vibration, impact or old mounting points.
- Corrosion from moisture, condensation or degraded oil.
- Blocked breathers or vents causing pressure imbalance and reduced flow.
- Internal contamination such as sludge or metal debris impairing circulation.
The Importance of Replacing with OEMatch Oil Tank
A leaking or damaged oil tank can lead to oil loss, low pressure or poor cooling, increasing the risk of severe engine damage. Timely replacement restores correct oil flow and pressure, prevents oil starvation and helps maintain reliable lubrication under road or track conditions. Where components affect pressure, breathers or sensor interfaces, check mounting, seals and associated hoses during replacement and follow model-specific procedures for installation and inspection.
Advantages
- Manufactured to original-spec dimensions and tolerances so units fit original mounting points and clearances.
- Materials and construction chosen to resist corrosion and mechanical stress, including high-grade alloys or reinforced composites where specified.
- Catalogued references and cross-checks to simplify selection for Porsche models and related breather, seal and hose parts.
