MMX Performance BMW Billet Oil Filler Cap - S58 / B48E
- $127.70 USD
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The MMX Performance BMW Billet Oil Filler Cap for S58 and B48E engines is a precision-engineered upgrade designed to enhance both durability and under-hood aesthetics. Unlike simple cap covers, this is a complete replacement unit, machined from a solid piece of billet aluminum to deliver long-term reliability and a refined OEM+ appearance.
Developed in the UK, each cap begins as a solid billet of 6061 aerospace-grade aluminum and is machined using advanced 5-axis CNC technology. The result is exceptional fitment accuracy, structural integrity, and a premium finish that far exceeds the factory plastic component. After machining, each cap is polished and finished in a deep gloss black anodized coating to maintain its appearance over time.
The MMX billet oil cap is supplied as a complete plug-and-play solution, pre-installed with an OE-spec internal valve, spring mechanism, and Viton O-ring. This eliminates the need to transfer components from the factory cap and ensures consistent sealing performance. The internally sprung locking mechanism provides a secure and precise fit, eliminating common issues such as oil cap loosening or minor oil seepage that can develop over time with OEM units.
Beyond functionality, the cap is designed with an optimized grip surface, making removal and installation easier during routine maintenance. It integrates seamlessly into the engine bay and pairs perfectly with other MMX billet engine dress-up components for a cohesive and premium look.
Product Details
- Designed and engineered in the UK
- Precision machined from 6061 aerospace-grade aluminum
- Full OE oil cap replacement, not a cover
- Internally sprung locking mechanism for secure fitment
- Pre-installed OE-spec valve, spring, and Viton O-ring
- Gloss black anodized finish for durability and corrosion resistance
- Improved grip surface for easier handling during oil service
- SKU: MMR03-1601
- Fits OE part number: 11 12 8 654 637
Vehicle Applications
- BMW M2 (G87)
- BMW M3 (G80 / G81)
- BMW M4 (G82 / G83)
- BMW X3M (F97)
- BMW X4M (F98)
- BMW X5M (F95 LCI)
- BMW X6M (F96 LCI)
- BMW XM (G09)
- BMW 4 Series (G22 / G23)
- BMW 5 Series (G30)
- BMW X3 (G01)
- BMW X4 (G02)
- MINI Cooper S / JCW / GP3 (F55 / F56 / F57)
- MINI Clubman (F54)
- MINI Countryman S / JCW (F60)
Notes
- Also fits a wide range of BMW models and MINI models. Please contact us to confirm compatibility for your specific vehicle.
- Fits S58 and B48E engine applications only
- Please verify OE part number 11 12 8 654 637 on your factory cap prior to ordering
- Includes a 1-year manufacturer warranty against defects in materials and workmanship
- Designed and tested in the United Kingdom
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