Dorman 32109 Exhaust Bolt

Dorman Exhaust Bolt for GM HD Trucks

Dorman 32109 is an exhaust bolt engineered to match the fit and function of the original hardware on specified Chevrolet and GMC applications. Built from steel with a black phosphate finish, it is made for reliable exhaust fastening where strength and corrosion resistance matter.

• Steel construction for exhaust hardware service
• Grade 10.9 bolt specification for performance use
• Coarse thread design for the listed applications
• Black phosphate finish with oiled/phosphated surface treatment
• Integral washer outside diameter: 18.3 mm
• Thread diameter: 9.81 mm
• Length: 39.48 mm
• Direct replacement style for OE fit and function

Fitment Details

• Fits 2006-2016 Chevrolet Express 2500, N/A
• Fits 2006-2016 Chevrolet Express 3500, N/A
• Fits 2001-2016 Chevrolet Silverado 2500 HD, N/A
• Fits 2007-2016 Chevrolet Silverado 3500 HD, N/A
• Fits 2006-2016 GMC Savana 2500, N/A
• Fits 2006-2016 GMC Savana 3500, N/A
• Fits 2001-2016 GMC Sierra 2500 HD, N/A
• Fits 2007-2016 GMC Sierra 3500 HD, N/A
• Fits 2007 Chevrolet Silverado 2500 HD Classic, N/A
• Fits 2007 Chevrolet Silverado 3500 Classic, N/A
• Fits 2007 GMC Sierra 2500 HD Classic, N/A
• Fits 2007 GMC Sierra 3500 Classic, N/A
• Fits 2001-2006 Chevrolet Silverado 3500, N/A
• Fits 2001-2006 GMC Sierra 3500, N/A

What This Exhaust Bolt Helps Address

• Broken or stretched exhaust fasteners during exhaust service
• Corroded hardware at exhaust flange or connection points
• Loose exhaust joints that can create leaks or noise
• Hardware mismatch when replacing OE exhaust bolts on GM HD trucks
• Service delays caused by worn fasteners that no longer hold torque

Installation Notes

Verify thread diameter, length, and bolt grade against the original fastener before installation. Clean mating surfaces and inspect the exhaust flange, threads, and surrounding hardware for wear or damage. This part cross-references OE numbers 11611132 and 97227612 for the same application.

Quality Assurance

Dorman designs this exhaust bolt to match original part fit and function on the listed Chevrolet Express, Silverado HD, GMC Savana, and Sierra HD applications. The steel construction, Grade 10.9 rating, and black phosphate finish support dependable exhaust hardware service.