MMX Performance BMW Billet Oil Filler Cap - S58 / B48E

$127.70
$127.70
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The MMX Performance Billet Oil Filler Cap for the BMW S58 and B48E is a full replacement for the factory cap rather than a cover that clips over it. That distinction matters: the whole assembly is MMX's, machined from 6061 aerospace-grade aluminum and finished in the MMX signature gloss black anodizing, so there is nothing plastic left underneath.

Each cap arrives pre-sealed and pre-installed with an OE-spec valve and internal spring, which means there is no need to strip the valve assembly out of your factory cap and transfer it across. It is a genuinely plug-and-play swap: unscrew the old one, fit this one. A factory-spec Viton O-ring comes fitted, and an internally sprung clip gives the cap a secure and precise seat rather than the vague feel a worn plastic original develops.

The cap is compatible with applications using BMW OE part number 11 12 8 654 637.

Product Details

  • Full OE cap replacement, not a cover
  • Designed and engineered in the UK
  • Crafted from 6061 aerospace-grade aluminum
  • Anodized in MMX signature gloss black
  • Pre-installed factory-spec Viton O-ring
  • Arrives pre-sealed with an OE-spec valve and internal spring fitted
  • Internally sprung clip for a secure and precise fit
  • No need to transfer the valve assembly from the factory cap
  • Compatible with BMW OE part number 11 12 8 654 637
  • MMX part number: MMR03-1601
MMX Performance BMW Billet Oil Filler Cap - S58 / B48E

$127.70

Does it come with a warranty?

Parts are covered by the manufacturer's warranty where one is offered. If something goes wrong, contact us and we'll help you with the claim.

What happens if I don't like it?

New, uninstalled parts in their original packaging can be returned within 30 days of delivery. Suspension components (coilovers, springs and dampers), wheel spacers and batteries can't be returned, and a restocking fee applies to approved returns. See our refund policy for details.

How fast is shipping?

In-stock orders usually ship within 1–3 business days. Many parts ship directly from the manufacturer or distributor. Orders over $200 ship free with standard shipping, and faster UPS and USPS options are available at checkout. See our shipping policy.

What's the returns policy?

You have 30 days after receiving your item to request a return. Parts must be new, uninstalled and in their original packaging. Contact us first to start a return. Full details are in our refund policy.

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