Dorman 674-940 Exhaust Manifold

Dorman 674-940 Exhaust Manifold for Select GM Vehicles

This Dorman exhaust manifold is built for select Chevrolet Captiva Sport, Chevrolet Equinox, and GMC Terrain applications. It is precision-engineered to match the original manifold’s fit and function, with cast iron construction and the necessary gaskets and downpipe hardware for a complete exhaust repair.

Key Features

• Cast iron construction for durable exhaust service
• Natural finish with oval port shape
• Engineered to match OE fit and function on specified vehicles
• Includes gasket and seal components for the repair
• Mounting hardware included for installation
• Direct replacement exhaust manifold, part number 674-940

Detailed Description

Dorman 674-940 is an exhaust manifold replacement for 2010-2012 Chevrolet Equinox, 2011-2012 Chevrolet Captiva Sport, and 2010-2012 GMC Terrain applications. Built from cast iron, this manifold is designed to restore the exhaust path at the cylinder head and connect properly to the downpipe on the listed vehicles. The package includes the manifold, manifold gasket, flange gasket, and mounting hardware needed for the repair. This part cross-references GM 12609823 for the same application.

Common Repair Issues

• Cracked or warped exhaust manifold
• Exhaust leak at the manifold or flange
• Broken or missing manifold fasteners
• Failed gasket or seal at the exhaust connection
• Noise or odor caused by a leaking manifold on Chevrolet Equinox or GMC Terrain models

Installation Notes and Tips

Verify engine and emissions configuration before ordering, since fitment is limited to the listed vehicles. Inspect the cylinder head sealing surface and downpipe flange for damage before installation. Replace any damaged studs or fasteners during service, and torque all hardware to the vehicle manufacturer’s specifications. For Chevrolet Captiva Sport, Chevrolet Equinox, and GMC Terrain exhaust manifold replacement, confirm the part number 674-940 matches the original layout and port shape.

Quality Assurance

This Dorman manifold is manufactured to match the fit and function of the original part on specified vehicles. It is supplied with the gaskets and hardware called out in the product contents to support a complete repair.