ECS Tuning Upgraded Aluminum Oil Filter Housing with Billet Oil Filter Cap

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. It’s a simple, smart upgrade that improves serviceability, reliability, and underhood appearance—exactly the way it should have been from the factory.

Replaces OEM MINI part number 11428575907. MINI 2014-2019

Install Tip** When installing aftermarket or factory filter you will need to replace or install a new O-ring from the plastic 10NM Drain plug on the cap. Our design on the 10NM drain plug only needs the smaller O-ring from that oil change kit.

**When installing aftermarket or factory oil filters you will have to align the filter on the tube inside the oil filter housing then align and tighten down the cap. This forces the plastic tabs on the top of the filter to snap in the tight metal tabs on the inside of the cap.

FEATURES

• Fixes common OEM plastic failures, including cracking, stripped threads, and rounded hex heads
• Precision-machined billet aluminum construction for superior strength and longevity
• Black anodized coating to prevent oxidation
• Integrated drain plug allows clean, mess-free oil changes
• Improves serviceability, reliability, and underhood appearance
• Upgraded main metal housing with gaskets and hardware from Bremmen Parts!
• All in one kit!

PRODUCT DEVELOPMENT

Our Billet Aluminium Oil Filter Cap was designed, engineered, tested, and quality inspected by the Research and Development team at ECS Tuning. Nothing but the highest level of precision and quality through leading-edge product development technology, including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.