Dorman 675-231 Engine Cylinder Head Bolt

Dorman Engine Cylinder Head Bolt for Ford V8 Applications

Dorman 675-231 is a steel engine cylinder head bolt made to replace the original fastener on select Ford, Lincoln, and Mercury vehicles. It is built with a hex head drive and hex fastener style for straightforward service during cylinder head repair or rebuild work.

• Steel construction for engine hardware applications
• Hex head drive and hex fastener style
• Direct replacement for the original cylinder head bolt on listed vehicles
• Thread length: 3.938 in.
• Fits select Ford F-150, Bronco, Mustang, and related V8 applications

Replacement Details

This Dorman cylinder head bolt is intended for engine service where a stripped or broken head bolt needs to be replaced with a direct-fit part. Part number 675-231 is listed for a wide range of Ford truck, van, and passenger car applications, including Ford F-150, Ford Bronco, Ford Mustang, Lincoln Town Car, and Mercury Cougar models. This part cross-references Ford C20Z6065B for the same application.

Common Repair Uses

• Replacing a stripped cylinder head bolt during engine teardown
• Repairing a broken or damaged head fastener
• Restoring proper cylinder head clamping during engine assembly
• Addressing leaks or sealing issues caused by compromised head hardware
• Supporting rebuild work on select Ford 5.0L V8 engine applications

Installation Notes

Verify engine code, year, and model before installation, since fitment varies by application. Confirm thread length and fastener style against the original hardware, and follow the vehicle service manual for tightening sequence and torque specifications. For best results, inspect the cylinder head and block threads before installing Dorman 675-231.

Quality Assurance

Dorman manufactures replacement hardware for direct-fit service applications and lists this bolt as an OE-style replacement for the specified vehicles.