The MMR Performance billet oil filler cap for BMW S58 and B48E engines has been designed from the ground up in the UK, from a solid piece of billet aluminum. Each cap is designed to directly replace the OE cap, not merely stuck in place.

Each MMR cap starts life as a solid billet of 6061 aerospace-grade aluminum. It's meticulously machined from this billet with the latest CNC 5-axis technology, before being polished, then gloss-anodized to stay beautiful year after year.

All MMR oil caps arrive pre-sealed and pre-installed with an OE spec valve and internal spring. No need to remove the assembly from your OE cap. A true plug and play solution. It has been designed to instantly give your BMW an under-bonnet boost in the aesthetic department, finished in a deep gloss black anodized finish.

Never again will you worry whether you tightened your oil cap fully, as the internally sprung cap clicks hard and locks into place. This cap will ensure that you'll never again have the problem of 'weeping' oil leaks from the standard cap - a known issue with many of these engines as age and mileage causes them to deteriorate.

It joins an existing range of engine dress-up products for a complete under-bonnet transformation to your engine bay.

The carefully considered design gives ample surface grip area for your fingers, making installation and filling your engine oil that little bit easier.

Please check the underside of your factory oil cap for the OE part number. The MMR billet oil cap for the S58 and B48E fits OE Part Number 11128654637

Product Features:

• Designed in the UK
• Crafted from 6061 aerospace-grade aluminum
• Full OE cap replacement
• Internally sprung clip for secure and precise fit
• Anodized in MMR signature gloss black
• Joins existing range of MMR billet caps
• Pre-installed factory spec Viton O-Ring

Popular Applications:

• G8X M2 / M3 / M4
• F97 X3M / F98 X4M
• F40 M135i
• F44 M235i
• Mini Cooper JCW / GP