Dorman 674-738 Exhaust Manifold - Left or Right

Overview of Dorman Exhaust Manifold 674-738

The Dorman 674-738 exhaust manifold is designed specifically for Chevrolet and GMC P30 and P3500 models. Crafted from durable cast iron with a natural finish, this exhaust manifold ensures reliable performance and longevity for your vehicle's exhaust system.

• Constructed from cast iron for strength and heat resistance
• Natural color finish for corrosion resistance
• Square port shape for optimal exhaust flow
• Includes mounting hardware for straightforward installation
• Comes with exhaust manifold gasket and flange for proper sealing
• Package contains 1 exhaust manifold, 1 manifold gasket and flange, 3 studs, and 3 nuts

Detailed Product Description

The Dorman 674-738 exhaust manifold is engineered to meet the specifications of Chevrolet and GMC P30 and P3500 vehicles. Its cast iron construction provides durability under high-temperature conditions, while the natural finish helps resist corrosion over time. The square port shape is designed to match the exhaust ports on compatible engines, ensuring efficient exhaust gas flow and reducing backpressure. This part includes all necessary mounting hardware, including studs and nuts, as well as a gasket and flange to ensure a secure and leak-free connection to the exhaust system.

Compatible Vehicles and Applications

This exhaust manifold is compatible with the following vehicles:

• Chevrolet P30
• GMC P30
• Chevrolet P3500
• GMC P3500

It is intended for use in replacing worn or damaged exhaust manifolds to restore proper exhaust function and engine performance.

Common Issues Addressed by This Exhaust Manifold

• Exhaust leaks causing noise and reduced engine efficiency
• Cracked or warped manifolds due to heat stress
• Poor exhaust flow leading to decreased engine performance
• Failed or missing gaskets causing exhaust fumes to escape
• Corrosion damage compromising manifold integrity

Installation Notes and Tips

• Ensure the engine is cool before beginning installation
• Use the included gasket and flange to prevent exhaust leaks
• Torque mounting hardware to manufacturer specifications
• Inspect exhaust ports for damage or debris before installation
• Replace any damaged studs or nuts with the included hardware

Quality Assurance and Warranty

Dorman exhaust manifolds are manufactured to meet or exceed OEM standards for fit and function. The 674-738 part number undergoes quality checks to ensure durability and proper fitment on Chevrolet and GMC P30 and P3500 models. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in materials and workmanship.