Find parts
for my car
Know your year? Pick it here
Shop all F97 parts ›Shop all F98 parts ›Shop all G80 M3 S58 parts ›Shop all G81 parts ›Shop all G82 M4 S58 parts ›Shop all G83 parts ›Shop all G87 M2 S58 parts ›Shop all S58 parts ›
part
Spec sheet
MMX Performance BMW S58 Billet Oil Filter Housing Cap
The MMX Performance BMW S58 Billet Oil Filter Housing Cap replaces the factory plastic housing on BMW's S58 engine with one machined from solid aluminum. The OE part cracks, deforms and loses its seal over time, and every oil service means removing and refitting it again. When it finally gives up, the result is oil seepage.
The MMX cap is crafted from a solid billet of 6061 aerospace-grade aluminum and anodized black. It is light, extremely durable, and holds its shape through the heat cycles that fatigue the plastic original.
The pressure control oil bypass is built directly into the MMX housing. On other aftermarket caps the fragile factory plastic bypass valve has to be transferred across, which is where it frequently breaks. Integrating the bypass removes that step entirely and keeps oil flow and pressure regulation consistent without relying on a known failure point.
It is a full OE replacement requiring no modifications, supplied with a factory-specification O-ring. Fitting is straightforward and best done alongside an oil and filter change. It is compatible with OEM oil filters and pairs with the MMX S58 stainless steel lifetime oil filter, which addresses the separate and well-documented risk of the factory paper element collapsing.
Product Details
- Direct replacement for the factory plastic oil filter housing cap
- Crafted from a solid billet of 6061 aerospace-grade aluminum
- Integrated pressure control oil bypass built into the housing
- No need to transfer or reuse the fragile factory plastic bypass valve
- Black anodized finish
- Supplied with a factory-specification O-ring
- Full OE replacement with no modifications required
- Fits every BMW S58 application, including the F97 X3M and F98 X4M
- Compatible with OEM oil filters and the MMX S58 stainless steel lifetime oil filter
- MMX part number: MMR17-1601
Related Products