Dorman 674-516 Exhaust Manifold - Right

Exhaust Manifold for Right-Side Repair

This Dorman exhaust manifold is 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 a direct repair on the right side of Chevrolet G30 and P30, as well as GMC G3500 and P3500 applications.

Part number 674-516 includes the gaskets and downpipe hardware needed for a complete exhaust manifold service. It is a practical OE-style replacement for 1990-1996 Chevrolet and GMC vans and chassis-cab applications that need a right exhaust manifold replacement.

Key Features

• Cast iron construction for exhaust heat durability
• Natural finish
• Square port shape
• Heat shield included
• Gasket or seal included
• Mounting hardware included
• Package contents: exhaust manifold, 3 manifold gaskets, 1 flange, 3 studs, 3 springs, 3 nuts

Detailed Description

Dorman 674-516 is a replacement exhaust manifold designed for the right side of select Chevrolet and GMC vehicles. It is precision-engineered to align with the original manifold’s fit and function, helping restore proper exhaust routing on 1990-1996 Chevrolet G30 and P30, plus 1991-1995 GMC G3500 and P3500 models. The cast iron body and square port design support a direct-fit repair where the original manifold has cracked, warped, or developed sealing issues.

This part cross-references 10055570 and Nissens 101210 for the same application.

What It Helps Repair

• Exhaust leaks at the manifold-to-cylinder head sealing surface
• Cracks or warping in the original manifold
• Broken or missing downpipe connection hardware
• Noise from a leaking right-side exhaust manifold
• Failed gaskets or seals in the exhaust manifold assembly

Installation Notes and Tips

Install on the right side only for the listed Chevrolet G30, Chevrolet P30, GMC G3500, and GMC P3500 applications. Verify port shape, flange alignment, and mounting points before installation. Clean the mating surfaces thoroughly and inspect the cylinder head and downpipe connection for damage before assembly. Use the included gaskets and hardware during installation to complete the repair.

Quality Assurance

This Dorman exhaust manifold is manufactured to match original fit and function on the specified vehicles. It is built as a regular-grade replacement part for service on 1990-1996 Chevrolet and GMC applications.