Original BMW Expanding Nut (L=18.4, Dmax=18) for BMW 1, 2, 3, 5, 6, and 7 Series, X1, X3, X5, X6, and Z4 (1999–2024)

BMW's expanding nut 07-14-7-201-307 is a genuine fastener carrying the factory size designation L=18.4, Dmax=18, used on BMW 1, 2, 3, 5, 6, and 7 Series, X1, X3, X5, X6, and Z4 models from 1999 to 2024. An expanding nut sits in a mounting hole and spreads to grip the panel when a screw is driven into it, giving that screw a firm anchor. BMW's parts data puts its weight at 1 g (0.04 oz) and shows production from November 2007 onward. It replaces the earlier number 07-14-7-271-848, and BMW marks the change as exchangeable retrospectively, so the newer nut also goes on cars built with the old one. It is made in Germany and sold individually.

Original BMW Parts carry a 24-month parts warranty.

The size designation L=18.4, Dmax=18 is part of BMW's name for this nut. BMW applies it across a long run of engines, from the N13, N20, N47, N52, N54, N55, and N63 families through the B38, B46, B47, B48, and B58 generation, plus the S55 and S63 M engines. Chassis coverage runs from the E82 and E88 1 Series through the F20, F22, F30, F10, F01, G20, and G30.

Technical Details

• Manufacturer: BMW (Original BMW Parts)
• Part number: 07-14-7-201-307
• BMW part name: Expanding nut
• Size designation: L=18.4, Dmax=18
• Weight: 1 g (0.04 oz)
• Production start: November 2007
• Replaces: 07-14-7-271-848, exchangeable retrospectively
• Sold as: single piece
• Country of manufacture: Germany
• Warranty: 24 months

Common Questions

Will this replace the older expanding nut 07-14-7-271-848?
Yes. BMW lists this number as its replacement and marks it exchangeable retrospectively.

What do L=18.4 and Dmax=18 refer to?
They are the size designation BMW lists for this nut.

Is it sold one at a time?
Yes. Each unit is a single nut.

Fitment & Compatibility

Confirm your model year and submodel against the table below before ordering. With over 20 years of parts and fitment experience, PMB Performance can match this to your VIN.