Original BMW M6x18 ASA Bolt for BMW 550i, 650i, 750i, 760Li, M5, M6, Alpina B6/B7, X5, and X6 (2008–2019)

Part number 11-14-7-571-166 is an Original BMW ASA-Bolt with an M6 x 18 mm thread size (BMW designation M6X18-U1). It is used on the 5, 6, and 7 Series, the M5 and M6, the Alpina B6 and B7, and the X5 and X6 from 2008–2019. BMW lists the weight as 4 grams. Production of this number began in July 2008, and it is made in Germany. It is sold individually, as one piece.

Original BMW Parts carry a 24-month parts warranty.

BMW uses this number across the N63 and S63 engine families, including the later N63N and S63N updates.

Technical Details

• Manufacturer: BMW (Original BMW Parts)
• Part number: 11-14-7-571-166
• BMW part name: ASA-Bolt
• Size designation: M6X18-U1
• Weight: 4 g (0.14 oz)
• Production start: July 2008
• Country of manufacture: Germany
• Sold as: one piece
• Warranty: 24 months

Common Questions

What size is this bolt?
BMW designates it M6X18-U1, which is an M6 thread with an 18 mm length.

Is this bolt sold individually?
Yes. Each order quantity is one bolt.

Order as many as your job requires, and PMB Performance will ship genuine BMW hardware.

Fitment & Compatibility

Use the fitment table below to confirm year, model, submodel, and application notes before ordering. Send your VIN and PMB Performance will confirm the fit, drawing on more than 20 years in the trade.