Original BMW Cylinder Head Cover Torx Screw M7 x 33.5 for BMW E82, E90, E60, E83, E70, and E85 Z4 with N51/N52 (2006–2013)

This Original BMW Torx screw is the M7 x 33.5 fastener that holds the valve cover to the cylinder head on N51 and N52 engines in the BMW 128i, 328i, 528i, X3, X5, and Z4. Valve cover screws clamp the cover down evenly so the gasket can keep oil inside the head, and each screw carries part of that clamping load. In its parts data BMW calls it a Torx screw, with an M7 thread and a 33.5 mm length. Each screw weighs 21 g (0.74 oz). BMW shows production of this number starting in June 2006, with no end date.

Original BMW Parts carry a 24-month parts warranty.

Size is what matters when you match this screw. Screws from other engine families can share the Torx drive and still differ in thread or length, so compare the M7 x 33.5 size and the part number against the screws you are replacing. BMW uses this one number across N51, N52, and N52N applications, from the E82 1 Series to the E70 X5, which makes it a handy spare for valve cover work on these cars. It is sold individually, so order the count your job needs.

Technical Details

• Manufacturer: BMW (Original BMW part)
• Part number: 11-12-7-558-448
• BMW name: Torx screw
• Thread and length: M7 x 33.5
• Weight: 21 g (0.74 oz) each
• Production start: June 2006
• Engine families: N51, N52, and N52N
• Sold as: single piece
• Warranty: 24-month parts warranty

Common Questions

Which engine does this screw secure the valve cover on?
It is commonly used on N52-powered cars, and BMW also specifies it for the N51 and N52N.

Where is it made?
This screw is made in Germany.

Fitment & Compatibility

Check the table below for the exact year, model, submodel, and any listed notes. Send your VIN and PMB Performance will confirm the fit, drawing on more than 20 years in the trade.