Dorman 674-202 Exhaust Manifold - Right

OE-Style Exhaust Manifold for Right Side Repair

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 right-side exhaust repair on classic Chevrolet, GMC, Buick, Pontiac, and Oldsmobile applications.

Part number 674-202 includes the manifold gasket and downpipe hardware needed for a complete repair. It is a direct-fit replacement for many Chevrolet C10, K10, Camaro, and GMC Jimmy applications, including select California emissions and motorhome chassis configurations.

Key Features

• Cast iron construction for durable exhaust service
• Natural finish with square port shape
• Right-side exhaust manifold replacement
• Includes gasket and mounting hardware
• OE-style fit and function for specified vehicles
• Cross-references ATP 101084 and 346222

Detailed Description

Dorman 674-202 is an exhaust manifold designed to restore the original exhaust routing on the right side of the engine. It is engineered for specified Chevrolet, GMC, Buick, Pontiac, and Oldsmobile vehicles, including applications such as Chevrolet C10, K10, K5 Blazer, Camaro, and GMC Jimmy. The cast iron body helps provide the strength expected in a manifold that operates under high exhaust heat, while the square port design supports proper alignment with the matching exhaust system.

This part number 674-202 is a practical choice for drivers servicing older trucks and cars where the original manifold has cracked, warped, or developed leaks. It is also listed for select P30, P3500, and P20 chassis applications, including California emissions and motorhome chassis notes where specified.

What It Helps Fix

• Exhaust leaks at the manifold-to-cylinder-head sealing surface
• Cracked or heat-damaged original manifold castings
• Broken or missing downpipe connection hardware
• Noise from escaping exhaust on the right side
• Fitment issues caused by worn OE manifold components

Installation Notes and Tips

Fits 1975-1980 Chevrolet C10, right; 1975-1980 Chevrolet K10, right; 1976-1981 Chevrolet Camaro, right; and other listed right-side applications. Verify engine, emissions, and chassis notes before installation, especially on P30, P3500, and California emissions vehicles. Inspect the cylinder head flange, exhaust pipe connection, and fasteners for wear before assembly. Use the included gasket and hardware during installation for proper sealing and alignment.

Quality Assurance

This Dorman exhaust manifold is manufactured to match the fit and function of the original manifold on specified vehicles. Its cast iron construction and application-specific design support a direct replacement approach for classic GM exhaust repairs.