Dorman 674-524 Exhaust Manifold - Right

Dorman 674-524 Exhaust Manifold

This Dorman exhaust manifold is built for direct replacement on select Chevrolet and GMC trucks and vans with right-side applications. It is precision-engineered to match the original fit and function, with cast iron construction and the necessary gaskets and downpipe hardware for a complete repair.

Key Features

• Cast iron construction for durable exhaust service
• Natural finish with square port shape
• Right-side exhaust manifold application
• Includes gasket and seal components for installation
• Heat shield included
• Mounting hardware included
• OE-style replacement for specified Chevrolet Silverado 1500, GMC Sierra 1500, Express 1500, Savana 1500, Express 2500, and Savana 2500 applications

Detailed Description

The Dorman 674-524 exhaust manifold is engineered as a direct-fit replacement for the original manifold on select 1999-2014 Chevrolet and GMC vehicles. It is designed for the right side and uses a cast iron body with a square port shape to match the factory exhaust layout. This part number 674-524 is a practical choice for owners servicing a Chevrolet Silverado 1500 or GMC Sierra 1500 exhaust leak, cracked manifold, or failed flange connection.

This part cross-references ATP 101553 for the same application. It also interchanges with OE reference 12560514.

What It Helps Repair

• Exhaust leaks at the manifold or flange
• Cracked or warped original manifold surfaces
• Broken or missing manifold mounting points
• Noise from escaping exhaust on the right side
• Failed sealing surfaces that affect exhaust flow

Installation Notes and Tips

Fits 2003-2014 Chevrolet Express 1500, right; 2003-2014 GMC Savana 1500, right; 2002-2013 Chevrolet Silverado 1500, right; 2002-2013 GMC Sierra 1500, right; 2007 Chevrolet Silverado 1500 Classic, right; 2007 GMC Sierra 1500 Classic, right; 2003-2005 Chevrolet Express 2500, right; 2003-2005 GMC Savana 2500, right; 1999-2001 Chevrolet Silverado 1500, right, wo/Air Pump; and 1999-2001 GMC Sierra 1500, right, wo/Air Pump.

Before installation, verify the vehicle’s right-side exhaust configuration and confirm whether the application is equipped with an air pump. Replace worn sealing surfaces and inspect the downpipe connection to help ensure a proper exhaust seal.

Quality Assurance

Dorman manufactures this manifold to match the fit and function of the original part on specified vehicles. The cast iron construction, included gasket components, and supplied heat shield support a complete repair on the listed Chevrolet and GMC applications.