Valve Cover Diaphragm — BMW B57 / B57S / B37 Diesel | OEM 11128571308 / 11128511342
Stop Oil Leaks and PCV Faults on Your BMW B57 or B37 Diesel — Direct Replacement Diaphragm.
A failed valve cover diaphragm on BMW B57, B57S, and B37 diesel engines causes oil leaks and crankcase fault codes. This direct replacement diaphragm restores correct crankcase ventilation.
Vehicle Compatibility
BMW models with B57 diesel — 730d, 740d, 330d, 430d, X5 30d/40d/M50d; B57S — X5 M50d; B37 diesel — 114d, 116d, 118d, Mini
OEM References
- 11128571308 (B57/B57S)
- 11128511342 (B37)
Read All
Orders ship within 1–2 business days.
Standard delivery:
- USA: Some items ship from our US warehouse and arrive within 3 business days.
- USA-EU: 10–21 business days
- Worldwide: 14–30 business days
Shipping cost is shown at checkout.
Can I exchange or return an item?
Yes, you can exchange or return an item within 14 days of purchase. This right is guaranteed to you by the Law on the Protection of Consumer Rights
To use this feature, please make sure that:
- the product was not in use and has no traces of use: scratches, chips, abrasions, etc.
- the goods are fully completed and the integrity of the packaging is not violated
- retained all labels and factory markings