MMR Performance Billet Oil Filler Cap for BMW 1-Series F40 and 2-Series Gran Coupé F44
Upgrade your BMW engine bay with the MMR Performance billet oil filler cap. Perfect for BMW 1-Series F40 and BMW 2-Series Gran Coupé F44 owners who want a premium, gloss black anodised finish and a precise, positive locking action every time they top up oil. This high quality CNC-machined 6061 aerospace-grade aluminium cap transforms the look and feel under the bonnet while helping prevent the common weeping seen from ageing factory caps.
Designed for both style and function, the MMR billet cap features an internally sprung mechanism that clicks firmly into place so you know it is properly secured. The latest revision allows the logo to be aligned at 0 or 90 degrees, ideal for longitudinal or transverse engine installations. With carefully profiled grip surfaces, it is easy to remove and refit, even in a hot engine bay.
Why choose the MMR billet oil cap
- Premium upgrade for BMW 1-Series F40 and 2-Series Gran Coupé F44
- Precision CNC-machined from solid 6061 aluminium billet
- Deep gloss black anodised finish for a factory-plus look
- Internally sprung mechanism clicks and locks securely
- Updated design allows 0 or 90 degree orientation for perfect alignment
- Improved grip makes removal and refitting simple
- Helps prevent weeping oil leaks seen with tired OE plastic caps
- Complements other MMR engine dress-up parts for a clean, cohesive engine bay
Compatibility and part reference
This billet oil filler cap fits BMW 1-Series F40 and BMW 2-Series Gran Coupé F44 models, petrol and diesel, with B38, B48, B37 and B47 engines that use the rounded factory filler cap style shown in our images. Please check the underside of your existing cap matches the product images for confirmation.
OE part number reference for the factory cap: 11128655331.
Installation notes
- Please re-use your original oil filler cap seal.
- Prolonged exposure to excessive heat can affect the appearance of anodised aluminium surfaces over time.
Fitting service
Prefer professional fitting. Book with Nforcd in Warwickshire. Request a quote at Sales@nforcd.com.
Tried, tested and loved
We run these MMR billet oil caps on our own cars and customer builds. Feedback is consistently positive on the fit, finish and the satisfying locked click you get every time you refuel your engine with oil. It is a small upgrade that makes a big difference to your BMW’s engine bay.
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