ECS Billet Aluminum Oil Filter Cap - MINI F5X B38/B48

Product Details

Designed to fix a known weak point for the MINI B3X and B4X engines, the ECS billet aluminium oil filter housing cap is a direct replacement for the factory plastic cap. The OEM plastic part 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.

The engineers at ECS have designed a precision-machined billet aluminium upgrade that eliminates those issues, delivering strength, durability, and consistent fitment. An integrated drain plug allows you to drain the filter housing cleanly before removal, reducing spills and mess for a faster, cleaner oil service. 

Replaces OEM MINI part number 11428575907.

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

Prop 65 Warning

Product Q&A

Lifetime Replacement

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