BMW Billet Aluminum Oil Cap

BMW's factory oil cap uses thin stamped-metal locking tabs that lose tension over time, especially under heat and vibration. Eventually the cap no longer seals tightly and weeps oil onto the valve cover.

The EAE Motorsport Billet Oil Cap replaces that failure-prone unit with a CNC-machined 6061-T6 billet aluminum body, a thicker high-temp gasket, and a pressed-in steel dowel-pin locking system that stays tight mile after mile.

Features

• 6061-T6 billet aluminum: CNC-machined for strength, heat resistance, and OEM-style fit.
• Anodized finish (black or clear): hard-anodized for corrosion resistance and lasting appearance.
• Upgraded high-temp gasket: thicker than OEM, with improved sealing to eliminate leaks and residue.
• Steel dowel-pin locking system: pressed-in steel pins that won't bend or fatigue like the thin factory tabs.
• OEM-plus feel: scalloped and knurled edges for grip and confident locking.
• Built to last: heat-, pressure-, and vibration-resistant.

Installs in seconds — twist and lock into place.

Fits:

• E9X M3 (S65)