The MMX Performance BMW B58 / B57 Billet Oil Filter Housing Cap is a precision-engineered upgrade designed to eliminate the well-documented weaknesses of the factory plastic housing. OEM plastic caps are prone to cracking, deformation, and inconsistent sealing during routine servicing, which can lead to oil seepage and long-term reliability concerns. The MMX billet solution provides a permanent, structurally robust replacement that improves sealing integrity and overall service confidence.
Machined from a solid block of 6061-T6 aerospace-grade aluminum, the MMX oil filter housing cap delivers exceptional strength while maintaining a lightweight design. The component is finished in a durable Midnight Black anodized coating, providing corrosion resistance and a refined OEM+ appearance that withstands repeated heat cycles and regular maintenance intervals.
From an engineering standpoint, the MMX housing cap incorporates a fully integrated oil pressure bypass system within the billet structure. This eliminates the need to transfer or reuse the fragile OEM plastic bypass valve, a process that often results in component damage on alternative aftermarket solutions. By integrating this function directly into the cap, MMX ensures consistent oil flow, stable pressure regulation, and long-term durability without reliance on failure-prone factory components.
Installation is straightforward and is ideally performed during a routine oil service. The cap installs directly in place of the factory unit and includes a factory-specification O-ring to ensure proper sealing and leak-free operation. It remains fully compatible with OEM oil filters and is optimized for use with the MMX stainless steel lifetime oil filter, providing a complete solution to address the known limitations of the B58 oil filtration system.
Designed for both daily-driven vehicles and high-performance applications, the MMX Performance Billet Oil Filter Housing Cap is a critical upgrade for owners seeking improved durability, consistent oil system performance, and a cleaner, more refined engine bay.
Product Details
- CNC-machined from 6061-T6 billet aluminum
- Direct replacement for OEM plastic oil filter housing cap
- Integrated oil pressure bypass system
- Improves sealing integrity and eliminates cracking risk
- Includes factory-specification O-ring for proper sealing
- Finished in Midnight Black anodizing for durability and OEM+ appearance
- Compatible with OEM and MMX performance oil filters
- SKU: MMR17-1501
Vehicle Applications
Related Products
Notes
- BMW models equipped with B58 3.0L petrol engines
- BMW models equipped with B57 3.0L diesel engines
- Toyota GR Supra 3.0 (B58 engine)
- Recommended to install during routine oil service
- Prolonged exposure to extreme heat may cause slight changes to anodized finish
- Finish variation does not affect performance or functionality
- Includes a 1-year manufacturer warranty against defects in materials and workmanship
- Designed and tested in the United Kingdom