Billet B48/B58 Oil Filter Cap

The factory oil filter housing cap on B48/B58-powered BMWs is another overlooked weak point. Made from plastic, it can deform or crack under repeated heat cycles and high oil pressure, leading to leaks, sealing failure, and difficult service. This billet aluminum oil filter housing cap permanently eliminates that risk, ensuring consistent oil sealing and long-term reliability.

Precision-machined from a solid block of 6061-T6 aluminum using a five-axis CNC, the cap features hard anodizing for superior corrosion resistance and exact-thread tolerances for smooth installation and removal. A reinforced design prevents warping under heat and pressure, making it an essential upgrade for daily-driven vehicles, high-boost applications, and track-focused builds.

Products Fit

Manufacturer: BMW
Year: 2016 – 2025
Engine Type: B48/B58

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