Original BMW Valve Cover Bolt M6x37.5 with Sealing Grommet, BMW M3, M5, and M6 (2006–2013)

BMW's M6x37.5 collar screw clamps the valve cover to the cylinder head on the S65 V8 in the 2008–2013 BMW M3 and the S85 V10 in the 2006–2010 M5 and M6. It comes with an integrated sealing grommet, and that grommet is not available on its own. Because the sealing grommet cannot be purchased separately, the complete screw is how you get a new grommet. Each screw weighs 18 grams and is made in Germany. A collar screw has a built-in shoulder under the head that sets how far it draws down. On a valve cover, that limits how hard the bolt compresses the cover and its seal against the head.

Original BMW Parts carry a 24-month parts warranty.

BMW began production of this number in April 2007. It replaced the earlier 11-12-7-835-169, and BMW marks the change as exchangeable retrospectively, so an early S85 engine built with the older screw can take this one. The same screw serves both M engines of the period, which keeps parts simple for owners who work on more than one of these cars. Because the grommet is part of the screw, order screws to match each grommet you plan to renew.

Technical Details

• Manufacturer: BMW, sold as an Original BMW part
• Part number: 11-12-7-841-217
• BMW part name: collar screw
• Thread and length: M6x37.5
• Includes integrated sealing grommet, which is not sold separately
• Weight: 18 g (0.63 oz)
• Production start: April 2007
• Supersedes: 11-12-7-835-169, exchangeable retrospectively
• Country of manufacture: Germany
• Sold individually
• Warranty: 24 months

Common Questions

Can I buy the sealing grommet by itself?
No. The grommet is integrated into this screw and cannot be purchased separately.

Does this replace 11-12-7-835-169?
Yes. BMW superseded that number with this screw and marks the change as exchangeable retrospectively.

Does it fit a non-M 3 Series?
No. BMW uses it only on the S65 and S85 M engines covered above.

Fitment & Compatibility

Compare your production year and trim against the table below. PMB Performance can confirm this against your VIN, backed by more than 20 years of parts and fitment work.