Oil Cap for MINI

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The oil cap covers the vital part of the engine where oil is added. If yours is cracked, replace it to avoid a troublesome vacuum leak. We also carry a variety of aftermarket caps for a simple way to dress up your engine bay.
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MMX Oil Filler Cap - Black
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Most BMW Models 2007 Onwards or Mini Models
MMX Performance - Corporate Logo
T#:4552062
Part#: MMR03-0102-BL
In Stock
$ 127.99 USD
Free Shipping on orders $49 and up
MMX's Performance billet oil filler cap machined from billet T-6061 aluminum has been designed to instantly give your engine bay an subtle aesthetic upgrade. This cap comes in a Black finish. *Note: After exposure to excessive heat over prolonged periods, overall finish fading can occur. Reusing of original seal is required.
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MINI (F5X) BLACKLINE Performance Engine Cap Set (Oil Cap / Coolant Ca...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Goldenwrench Supply Co - Corporate Logo
T#:3121419
Part#: F5XECS
Ships in 4 Business Days
$ 107.00 USD
Free Shipping
$ 107.00 USD
Free Shipping
ECS Billet Aluminum Oil Filter Cap - MINI F5X B38/B48
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:49613460
Part#: 057120LA01
Ships on Nov 4, 2026
New Item
Sale - Save 25% $ 101.99

This product was last offered at the strikethrough price on
06-14-2026

$ 76.49 USD
Free Shipping
Sale - Save 25%
$ 101.99

This product was last offered at the strikethrough price on
06-14-2026

$ 76.49 USD
Free Shipping

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.

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

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MMX Performance Billet Oil Filler Cap
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
MMX Performance - Corporate Logo
T#:28968889
Part#: MMR03-1601
Special Order: No Guaranteed ETA
$ 127.99 USD
Free Shipping on orders $49 and up