Oil filler cap. Porsche 911 / 924S / 928 / 944 / 968 / 964  ❭  94410709101

Oil Filler Cap.
The OE MATCH Oil Filler Cap is a replacement engine oil filler cap designed for compatible Porsche applications. Installed at the engine's oil filling point, the cap closes and seals the opening after engine oil has been added.

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

Although relatively simple, the oil filler cap performs an important sealing function. A correctly fitted cap helps prevent engine oil from escaping while protecting the lubrication system from dirt, moisture and other external contamination.  

What This Product Does:
The oil filler cap seals the opening used when adding engine oil.

Once installed correctly, it helps:

• Close the engine oil filling point
• Prevent oil from splashing or escaping
• Reduce the risk of dirt entering the engine
• Reduce moisture and external contamination
• Maintain the intended sealing of the lubrication system
• Keep the engine bay cleaner
• Provide convenient access during oil servicing

The cap must fit securely and its sealing surface must remain in good condition.

Symptoms Of Wear Or Failure:
Oil filler caps are exposed to engine heat, oil vapour and repeated removal during servicing. Over time, the cap or its sealing components can deteriorate.

Common symptoms include:

• Oil residue around the filler opening
• Oil leaking or misting around the cap
• Oil staining nearby engine components
• Cap becoming loose
• Cap no longer tightening securely
• Cracked or damaged cap
• Hardened or deteriorated sealing surface
• Damaged threads or retaining features
• Cap becoming difficult to remove or install
• Visible deformation
• Missing oil filler cap

Any persistent oil leakage around the filler opening should be investigated rather than simply cleaned away.

Why Replacement Matters:
Replacing a worn or damaged oil filler cap helps maintain the integrity and cleanliness of the engine lubrication system.

A new cap can help:

• Restore a secure seal
• Prevent oil leakage around the filler opening
• Reduce oil mist in the engine compartment
• Protect against dirt and moisture
• Keep surrounding engine components cleaner
• Replace cracked or deteriorated material
• Restore secure engagement with the filler opening
• Maintain reliable access for routine oil servicing

A missing or severely damaged filler cap should be replaced promptly.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94410709101

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