Dorman 674-268 Exhaust Manifold - Right

Dorman 674-268 Exhaust Manifold for GM V8 Applications

The Dorman 674-268 exhaust manifold is a right-side replacement for select Chevrolet and GMC trucks and SUVs from 1988-1995. Built from cast iron with a square port shape, it addresses common exhaust manifold cracking and warping concerns on higher-heat applications.

Key Features

• Right-side exhaust manifold for select Chevrolet C1500, C2500, C3500, K2500, K3500, and Suburban models, plus GMC C2500, C3500, K2500, and K3500 applications
• Cast iron construction with a natural finish
• Square port shape for the listed GM applications
• Includes gasket or seal, heat shield, and mounting hardware
• OE FIX replacement engineered for improved heat and stress handling
• Part number 674-268 for easy identification

Detailed Description

Dorman 674-268 is a direct replacement exhaust manifold for the right side of select 1988-1995 Chevrolet and GMC trucks and Suburban models. It is made from cast iron to better manage exhaust heat and operating stress, helping address the cracking and warping issues commonly associated with original manifolds built from lower-grade iron. This manifold is a practical choice for owners searching for a right exhaust manifold for 1991-1995 Chevrolet C2500, right exhaust manifold for 1988-1995 GMC K3500, or a replacement exhaust manifold for 1990-1993 Chevrolet C1500.

This part cross-references ATP 101132 for the same application.

What It Helps Address

• Exhaust leaks caused by a cracked manifold
• Warped manifold sealing surfaces
• Broken or fatigued manifold mounting points
• Noise from leaking exhaust at the cylinder head
• Heat-related deterioration on the right-side exhaust manifold

Installation Notes and Tips

Verify engine and chassis fitment before installation, since this manifold is listed for specific right-side Chevrolet and GMC applications only. Inspect the cylinder head flange, studs, and mating surfaces for damage before assembly. Use the included gasket and hardware during installation, and confirm proper alignment of the square port openings and heat shield clearance. For search reference, this part number is 674-268.

Quality Assurance

Dorman OE FIX replacement parts are built to address known failure points in original equipment designs. The cast iron construction and included heat shield support durability in demanding exhaust environments on compatible Chevrolet and GMC truck applications.