Dorman 674-268 Exhaust Manifold - Right

Durable Cast Iron Exhaust Manifold for Chevrolet and GMC Trucks

The Dorman 674-268 exhaust manifold is engineered to provide reliable exhaust flow for Chevrolet and GMC trucks, including C1500, C2500, C2500 Suburban, C3500, K2500, K2500 Suburban, and K3500 models. Crafted from cast iron with a natural finish, this exhaust manifold is designed to withstand high temperatures and deliver consistent performance.

• Constructed from durable cast iron material for long-lasting strength
• Natural color finish with square port shape for optimal exhaust flow
• Includes mounting hardware, gasket, and heat shield for complete installation
• Compatible with Chevrolet and GMC C1500, C2500, C2500 Suburban, C3500, K2500, K2500 Suburban, and K3500 models
• Part number 674-268 ensures precise fit and function

Product Features and Specifications

This exhaust manifold features a square port shape that matches the exhaust ports on compatible Chevrolet and GMC truck engines, promoting efficient exhaust gas evacuation. The cast iron construction offers resistance to warping and cracking under extreme heat conditions. Included with the manifold are essential installation components such as a manifold gasket, two flanges, three studs, and three springs, along with a heat shield to protect surrounding components from excessive heat. The mounting hardware is included to facilitate a straightforward installation process.

Applications and Common Repair Uses

• Replacement of cracked or warped exhaust manifolds on Chevrolet and GMC trucks
• Resolving exhaust leaks that cause engine noise or reduced performance
• Restoring proper exhaust flow to improve engine efficiency
• Addressing heat damage to the original manifold or surrounding components
• Upgrading worn or damaged exhaust components for reliable operation

Installation Notes and Tips

Before installation, ensure the engine is cool to prevent injury. Remove the old manifold carefully, inspecting the exhaust ports and mounting surfaces for damage or debris. Use the included gasket and mounting hardware to secure the Dorman 674-268 manifold, tightening bolts to manufacturer torque specifications. The included heat shield should be installed to protect adjacent parts from heat exposure. It is recommended to check for exhaust leaks after installation and retighten bolts if necessary after initial engine operation.

Quality Assurance and Warranty Information

Dorman exhaust manifolds are manufactured to meet or exceed OEM standards for fit, form, and function. The 674-268 part number undergoes rigorous quality control to ensure durability and performance. This product includes a limited warranty covering defects in materials and workmanship, providing confidence in its reliability for Chevrolet and GMC truck applications.