Elring 234.640 Engine Cylinder Head Bolt Set

Elring Cylinder Head Bolt Set for BMW Engines

Elring 234.640 is an engine cylinder head bolt set built for BMW applications that require M12 x 1.75 x 217 male Torx fasteners. With a 14-bolt configuration and TX-E14 drive, this set supports accurate cylinder head clamping during engine service on select BMW X5, X3, Z4, and 125i models.

Key Features

• Engine cylinder head bolt set from Elring
• Male Torx bolt head / nut design for secure tool engagement
• Thread size: M12 x 1.75 x 217
• TX-E14 spanner size
• Direct fitment for select BMW engine applications
• Part number: 234.640

Product Details

This Elring cylinder head bolt set is specified for engine hardware service where correct thread size, drive type, and bolt length matter. The M12 x 1.75 x 217 specification and male Torx head design make it a precise match for the listed BMW fitments, including BMW X5, BMW X3, BMW Z4, and BMW 125i applications. If you are searching for Elring 234.640 cylinder head bolts for BMW X5 or BMW X3 engine repair, this part number is the reference to verify against your vehicle and engine build.

This part cross-references 11 12 7 798 532 and HBS543 for the same application.

Used For

• Replacing stretched or damaged cylinder head bolts during engine service
• Restoring proper cylinder head clamping force after head removal
• Addressing head gasket service that requires new head bolts
• Matching OE-style fastener specifications for BMW engine repair
• Supporting accurate reassembly on BMW X5, X3, Z4, and 125i engines

Installation Notes and Tips

Verify engine code, bolt length, thread pitch, and drive type before installation. Clean the threaded holes and mating surfaces thoroughly, and follow the vehicle manufacturer’s tightening sequence and torque-angle procedure. Because this is an engine fastener application, confirm that the replacement bolts match the original specification before starting assembly. Elring 234.640 should be installed only on the listed BMW applications and engine configurations.

Quality Assurance

Elring is a recognized engine sealing and hardware brand used in professional repair environments. This cylinder head bolt set is built to match the listed dimensions and fitment requirements for the specified BMW applications.