MMR03-1601

MMX BMW S58 billet oil filer cap

The MMX 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 aluminium. Each cap is designed to directly replace the OE cap, not merely stuck in place.

Each MMX cap starts life as a solid billet of 6061 aerospace-grade aluminium.

It's meticulously machined from this billet with the latest CNC 5-axis technology, before being polished, then gloss-anodised to stay beautiful year after year.

All MMX oil caps arrive pre-sealed and pre-installed with an OE spec valve and internal spring. No need to remove the valve 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 anodised finish.

Never again will you worry whether you tightened your oil cap fully, as the cap contains complete OE replacement internals. The carefully considered design gives ample surface grip area for your fingers, making installation and filling your coolant that little bit easier.

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.

SKU: MMR03-1601

MMX BMW S58 billet oil filer cap

Sale price£81.89

Tax excluded. Shipping calculated at checkout


The MMX 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 aluminium. Each cap is designed to directly replace the OE cap, not merely stuck in place.

Please check the underside of your factory oil cap for the OE part number. The MMX billet oil cap for the S58 and B48E fits OE part number 11 12 8 654 637.

In stock

Product fitment.

While every effort has been made to ensure the accuracy of this information, we are not liable for abnormalities or inaccurate data. Customers are wholly responsible for checking fitment for their vehicle.

Model variant

Please check the underside of your factory oil cap for the OE part number. The MMX billet oil cap for the S58 and B48E fits OE part number 11 12 8 654 637

Where to purchase

Over 100 dealers, globally.

Our network of expert MMX Performance dealers can supply our full range, together with product guidance and advice, plus often an experience fitting service.

If you haven't got a MMX Performance dealer close to you, don't worry! Remember you can buy direct from our MMX Performance webshop.

Find a dealer

About MMX

A decade worth of obsession.

MMX Performance products have been designed and developed in the UK with passion by enthusiasts, for enthusiasts. All of our products are created in the world's toughest development lab: motorsport. We push the limits and reach new heights on track; then refine our products to give you the performance you need when you want it on the road.

Our extensive range of BMW and MINI upgrades offer unrivalled quality, performance and reliability worldwide; furthermore, every product carrying the MMX logo is thoroughly durability tested both on the road and track, so you can have complete peace of mind that you're installing only the best quality products to unlock the true performance potential from your car.