Apex AHB1178 Engine Cylinder Head Bolt Set

Engine Cylinder Head Bolt Set for GM Trucks and Vans

Apex AHB1178 is an engine cylinder head bolt set for select Chevrolet, GMC, and Hummer applications. It is built for service work on GM 6.0L and related engine platforms where cylinder head fastener replacement is required during teardown or rebuild.

• Engine cylinder head bolt set for GM truck and van applications
• Fits 2001-2011 Chevrolet Silverado 2500 HD
• Fits 2007-2011 Chevrolet Silverado 3500 HD
• Fits 2006-2011 Chevrolet Express 2500 and Express 3500
• Fits 2001-2011 GMC Sierra 2500 HD
• Fits 2007-2011 GMC Sierra 3500 HD
• Fits 2006-2011 GMC Savana 2500 and Savana 3500
• Fits 2006 Hummer H1
• Part number AHB1178 for engine repair and rebuild applications

This Apex cylinder head bolt set, part number AHB1178, is used when servicing the engine cylinder head on compatible Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, GMC Sierra 3500 HD, Express, Savana, and Hummer H1 applications. It supports cylinder head removal and reassembly on vehicles covered by the listed fitment, including 2001-2011 Chevrolet Silverado 2500 HD and 2001-2011 GMC Sierra 2500 HD models.

Common Repair Uses

• Replacing stretched or damaged cylinder head bolts during engine service
• Restoring proper cylinder head clamping during head gasket repair
• Addressing fastener wear found during engine teardown
• Supporting cylinder head reinstallation after machine work

Installation Notes and Tips

Verify engine code and application before installation. Follow the factory tightening sequence and torque specifications for the specific engine in the vehicle. Inspect the cylinder head and block surfaces, and replace any fasteners that do not meet service requirements during reassembly.

Quality Assurance

Apex AHB1178 is cataloged as an engine hardware replacement part for the listed GM applications. Confirm fitment against the vehicle’s year, make, model, and engine configuration before ordering.