Dorman 674-901 Exhaust Manifold - Left

Durable Cast Iron Exhaust Manifold for Select GM Vehicles

The Dorman 674-901 exhaust manifold is engineered to provide reliable exhaust flow for various Buick, Chevrolet, Pontiac, and Saturn models. Designed with a natural cast iron finish and square port shape, this exhaust manifold ensures a precise fit and long-lasting performance.

• Constructed from durable cast iron material for heat resistance and strength
• Natural color finish complements OEM components
• Square port shape for optimal exhaust gas flow
• Includes exhaust manifold gasket and six bolts for secure mounting
• Heat shield included to protect surrounding components from excessive heat

Product Details and Specifications

The Dorman 674-901 exhaust manifold is a regular grade replacement part designed to meet the specifications of original equipment. Its cast iron construction offers excellent durability under high-temperature conditions common in exhaust systems. The included heat shield helps reduce heat transfer to nearby engine parts, enhancing overall engine bay safety. This manifold features a square port shape that matches the cylinder head ports on compatible vehicles, ensuring proper exhaust gas evacuation and engine efficiency.

Compatible Vehicles and Applications

This exhaust manifold is compatible with a range of General Motors vehicles, including Buick Lucerne, Chevrolet Impala, Chevrolet Monte Carlo, Pontiac G6 Relay, Saturn Relay, Saturn Vue Terraza, and Saturn Uplander. The part number 674-901 is specifically designed to fit these models, providing a direct replacement for worn or damaged exhaust manifolds.

• Replaces cracked or leaking exhaust manifolds
• Addresses exhaust leaks causing engine noise or reduced performance
• Helps resolve check engine light issues related to exhaust system faults
• Restores proper exhaust flow to improve fuel efficiency
• Prevents heat damage to engine components with included heat shield

Installation Notes and Tips

When installing the Dorman 674-901 exhaust manifold, ensure all old gasket material is thoroughly cleaned from the mounting surface to prevent leaks. Use the included gasket and bolts to secure the manifold firmly. Torque bolts to manufacturer specifications to avoid warping or damage. The heat shield should be positioned correctly to protect adjacent components from heat exposure.

Quality Assurance and Warranty

Dorman exhaust manifolds are manufactured to meet or exceed OEM standards for fit, form, and function. The 674-901 part is backed by Dorman's quality assurance processes to ensure durability and performance. Please refer to Dorman's warranty policy for specific coverage details.