Dorman 674-250 Exhaust Manifold - Left

Durable Cast Iron Exhaust Manifold for Chevrolet and GMC Vehicles

The Dorman 674-250 exhaust manifold is engineered to provide reliable exhaust flow for Chevrolet and GMC models including G30, P20, P30, P2500, and P3500. Crafted from cast iron with a natural finish, this manifold offers a solid replacement option designed to meet regular grade requirements.

• Constructed from durable cast iron material
• Natural color finish for corrosion resistance
• Square port shape for precise exhaust flow
• Includes mounting hardware: 3 studs, 3 nuts, and 3 springs
• Comes with one manifold gasket for proper sealing
• Compatible with Chevrolet and GMC G30, P20, P30, P2500, and P3500 models

Product Details and Specifications

The Dorman 674-250 exhaust manifold is designed with a square port shape to ensure efficient exhaust gas evacuation from the engine. Made from cast iron, it provides strength and heat resistance necessary for long-term use. The natural color finish helps resist rust and corrosion over time. This manifold includes all necessary mounting hardware and a gasket to simplify installation and ensure a proper seal. It is classified as a regular grade type, suitable for standard replacement needs without requiring additional modifications.

Compatible Vehicles and Applications

This exhaust manifold is compatible with a range of Chevrolet and GMC vehicles, specifically the G30, P20, P30, P2500, and P3500 models. It is an appropriate replacement part for those seeking to restore or maintain the exhaust system's integrity on these trucks and vans.

• Replaces worn or cracked exhaust manifolds
• Addresses exhaust leaks causing noise or emissions issues
• Helps restore proper exhaust flow and engine performance
• Prevents exhaust fumes from entering the cabin
• Supports emission control compliance

Installation Notes and Tips

Installation of the Dorman 674-250 exhaust manifold includes the provided mounting hardware and gasket for a secure fit. It is recommended to inspect the exhaust ports and surrounding components for damage or corrosion before installation. Proper torque specifications should be followed when tightening the studs and nuts to avoid warping or leaks. Replacement of the gasket is essential to ensure a tight seal and prevent exhaust leaks.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 674-250 exhaust manifold undergoes quality checks to ensure durability and performance. This product includes a limited warranty covering defects in material and workmanship, providing confidence in its reliability for Chevrolet and GMC exhaust system repairs.