Dorman 674-156 Exhaust Manifold - Right

OE-Style Exhaust Manifold for GM Trucks and SUVs

This Dorman exhaust manifold is precision-engineered to match the fit and function of the original part on specified vehicles. Built from cast iron with a natural finish, it is made for the right-side exhaust location and includes the gaskets, heat shield, and downpipe hardware needed for a complete repair.

Key Features

• Cast iron construction for durable exhaust service
• Natural finish with square port shape
• Right-side exhaust manifold for listed Chevrolet and GMC applications
• Includes gasket and seal components for installation
• Heat shield included
• Mounting hardware included
• Direct replacement for OE-style fit and function

Detailed Description

Dorman 674-156 is an exhaust manifold replacement for select Chevrolet and GMC trucks, vans, SUVs, and Suburban models from 1988-1995. It is built to match the original manifold layout on the right side and is suited for vehicles such as the Chevrolet C1500, K1500, Tahoe, Blazer, and GMC C1500, K1500, Yukon. The cast iron design supports long-term exhaust service, while the included manifold gasket, flange gasket, studs, nuts, springs, and heat shield help complete the repair with the correct related components. This part cross-references ATP 101063 for the same application.

Vehicle Fitment

• Fits 1988-1995 Chevrolet C1500, right
• Fits 1992-1995 Chevrolet C1500 Suburban, right
• Fits 1988-1995 Chevrolet C2500, right
• Fits 1992-1995 Chevrolet C2500 Suburban, right
• Fits 1988-1995 Chevrolet C3500, right
• Fits 1995 Chevrolet G10, right
• Fits 1995 Chevrolet G20, right
• Fits 1988-1995 Chevrolet K1500, right
• Fits 1992-1995 Chevrolet K1500 Suburban, right
• Fits 1988-1995 Chevrolet K2500, right
• Fits 1992-1995 Chevrolet K2500 Suburban, right
• Fits 1988-1995 Chevrolet K3500, right
• Fits 1995 Chevrolet Tahoe, right
• Fits 1988-1995 GMC C1500, right
• Fits 1992-1995 GMC C1500 Suburban, right
• Fits 1988-1995 GMC C2500, right
• Fits 1992-1995 GMC C2500 Suburban, right
• Fits 1988-1995 GMC C3500, right
• Fits 1995 GMC G1500, right
• Fits 1995 GMC G2500, right
• Fits 1988-1995 GMC K1500, right
• Fits 1992-1995 GMC K1500 Suburban, right
• Fits 1988-1995 GMC K2500, right
• Fits 1992-1995 GMC K2500 Suburban, right
• Fits 1988-1995 GMC K3500, right
• Fits 1992-1995 GMC Yukon, right
• Fits 1992-1994 Chevrolet Blazer, right

Common Repair Uses

• Cracked or warped exhaust manifold replacement
• Exhaust leaks at the manifold or flange
• Broken or missing manifold mounting hardware
• Damaged gasket sealing surfaces
• Heat shield replacement during exhaust service

Installation Notes and Tips

Verify right-side fitment before installation and compare the original manifold, port shape, and mounting points to the replacement part. Inspect the cylinder head and downpipe flange surfaces for damage or carbon buildup, and replace worn fasteners or sealing surfaces as needed. For best results, follow factory torque specifications and exhaust service procedures during installation.

Quality Assurance

Dorman manufactures this manifold as a direct-fit replacement for specified Chevrolet and GMC applications, with OE-style fit and function in mind. The part number is 674-156.