Original BMW Engine Oil Filler Cap for BMW 2, 3, 4, 5, 7, and 8 Series, X1–X7, XM, Z4, and Mini Cooper (2016–2025)

Original BMW engine oil filler cap 11-12-8-654-637 closes the oil fill opening on the valve cover of BMW's modular B-series engines and several V8 and M engines, from the 2 Series through the X7 and XM. BMW names it the cap for oil filler, and production started in November 2017. The filler cap seals the opening you pour fresh oil through and keeps dirt out and oil in while the engine runs. This cap is made in Slovakia and is sold as a single cap. A cracked or leaking cap is the usual sign it needs replacing, and damage from improper tool use, heat, or age is common.

Original BMW Parts carry a 24-month parts warranty.

This number replaces the earlier cap 11-12-1-028-899. If your car came with the older number, this is the current replacement. BMW uses the cap across the B38, B46, B48, and B58 gasoline engines, the B37 and B47 diesels, the N63 V8, and the S58 in the X3 M and X4 M. The cap is the same whether the car is a plug-in hybrid 330e or an M850i xDrive, so you do not need to choose a version by engine.

Technical Details

• Manufacturer: BMW
• Part number: 11-12-8-654-637
• BMW part name: Cap for oil filler
• Replaces: 11-12-1-028-899
• Production start: November 2017
• Country of manufacture: Slovakia
• Sold as a single cap
• Warranty: 24-month Original BMW parts warranty

Common Questions

Will this replace a cap marked 11-12-1-028-899?
Yes. BMW's current number replaces 11-12-1-028-899.

What are the signs of a failing filler cap?
Look for cracking or oil leaking at the cap. Heat, age, and the wrong tools can all damage it.

Do hybrids and M models use a different cap?
No. The same cap applies to the 330e, 745e, and M models that use the S58.

PMB ships Original BMW service parts for late-model owners as well as classic ones.

Fitment & Compatibility

Use the table below to verify the year and submodel for your build. PMB Performance has spent over 20 years matching parts to vehicles and can verify this against your VIN.