MMR Performance Billet Oil Filler Cap for BMW B58, N54, N55, S54, S55, S63
Upgrade your BMW oil filler cap with the MMR Performance billet oil cap. Precision CNC machined from solid 6061 aerospace grade aluminium and finished in a deep gloss black anodised finish, this premium BMW oil cap upgrade transforms your engine bay and delivers a secure, click lock fit that makes topping up engine oil quick and satisfying.
This performance oil filler cap has been designed for all BMW B58, N54, N55, S54, S55 and S63 engines with the rounded style factory cap. It is a direct replacement for the standard BMW oil cap and is the perfect engine bay dress up part for enthusiasts who want quality, reliability and style.
Why choose this BMW billet oil filler cap
- Billet 6061 aluminium construction for strength and durability
- Deep gloss black anodised finish for a premium under bonnet look
- Internally sprung click lock mechanism so you know it is fully secured
- Updated design allows 0 or 90 degree orientation to align perfectly on longitudinal or transverse installations
- Large, grippy profile makes removal and refitting easy even with oily hands
- Helps eliminate the common weeping oil issue seen on ageing factory caps
- Part of a complete engine dress up range for a cohesive engine bay upgrade
Each cap starts life as a solid billet, then is meticulously 5 axis CNC machined, polished and gloss anodised to stay looking great year after year. The precise fit and click lock action give total confidence every time you remove and refit the cap.
Fitment and compatibility
This billet oil filler cap fits BMW engines as listed:
Engines: BMW B58, BMW N54, BMW N55, BMW S54, BMW S55, BMW S63
It fits all applications that use the rounded style oil filler cap with the same underside as shown in the product images. Please compare your factory cap underside to confirm compatibility.
OE reference for underside check: 11128655331
Real world results
We run this MMR billet oil filler cap on our own BMW builds and our customers love it. The fit is precise, the click lock action is reassuring and the gloss black finish delivers a premium engine bay upgrade that looks right at home on both BMW M and non M engines. A simple, high quality replacement oil cap that solves a common annoyance and looks fantastic.
Installation and fitting
Simple DIY install using basic hand fitment. Re use your original oil filler cap seal for correct sealing.
Prefer professional fitting. Nforcd can fit this for you at our Warwickshire workshop. Request a quote at Sales@nforcd.com.
Good to know
- You must re use your original oil filler cap seal
- Prolonged exposure to excessive heat can affect the appearance of anodised finishes over time
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