Dorman 667-190 Exhaust Clamp

Dorman 667-190 Exhaust Clamp

Dorman 667-190 is a standard replacement exhaust clamp built to match the function of the original equipment clamp on select heavy-duty GM trucks. It uses an aluminum construction with a natural finish and round band clamp design to help maintain a secure exhaust connection.

• Aluminum construction with metallic gray/natural finish
• Round band clamp design for exhaust system connections
• Specific fit for select applications
• Castle nut style with 0.125 in. thread diameter
• Direct replacement for OE-style exhaust service

Fitment and Application

Compatible with 2017-2023 Chevrolet Silverado 2500 HD, V-Band Exhaust Clamp; 2017-2023 Chevrolet Silverado 3500 HD, V-Band Exhaust Clamp; 2017-2023 GMC Sierra 2500 HD, V-Band Exhaust Clamp; and 2017-2023 GMC Sierra 3500 HD, V-Band Exhaust Clamp. This Dorman 667-190 exhaust clamp is also a direct-reference replacement for OE part number 12683878 on the same application.

What This Clamp Helps Address

• Loose exhaust joints at a V-band connection
• Exhaust leaks caused by worn or damaged clamp hardware
• Loss of clamping force from corrosion or fatigue
• Service replacement for a damaged OE-style exhaust clamp

Installation Notes

Verify the exhaust joint style, pipe diameter, and vehicle application before installation. This clamp is specific fit, so confirm the Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, or Sierra 3500 HD configuration matches the listed V-band exhaust clamp application. Inspect mating surfaces and fastener threads during service to help ensure proper sealing and clamp retention.

Quality Assurance

Dorman manufactures this exhaust clamp from quality materials to support reliable exhaust system service and consistent OE-style function on select Chevrolet Silverado and GMC Sierra HD models.