Billet Aluminum Oil Filter Cap 2014-2019 MINI Cooper F5

Designed to fix a known weak point for the MINI B3X and B4X engines, this billet aluminium oil filter housing cap is a direct replacement for the factory plastic cap. The OEM piece is infamous for cracks, stripped threads, and rounded hex heads often failing during routine oil changes and turning basic maintenance into a frustrating, time-consuming repair.

Our precision-machined billet aluminium upgrade eliminates those issues, delivering strength, durability, and consistent fitment you can rely on. An integrated drain plug allows you to drain the filter housing cleanly before removal, reducing spills and mess for a faster, cleaner oil service. Its a simple, smart upgrade that improves serviceability, reliability, and underhood appearance exactly the way it should have been from the factory.