Dorman 674-903 Exhaust Manifold - Right

Reliable Exhaust Manifold for Ford, Lincoln, and Mercury Vehicles

The Dorman 674-903 exhaust manifold is designed to provide a durable and efficient exhaust flow solution for select Ford, Lincoln, and Mercury models. Engineered from cast iron with a natural finish, this exhaust manifold ensures long-lasting performance and compatibility with your vehicle.

Key Features of the Dorman 674-903 Exhaust Manifold

• Constructed from durable cast iron for strength and heat resistance
• Natural color finish for corrosion resistance and OEM appearance
• Round port shape designed for optimal exhaust flow
• Includes mounting hardware: 2 studs and 2 nuts for secure installation
• Comes with one manifold gasket to ensure a proper seal
• Compatible with Ford Crown Victoria, Lincoln Town Car, and Mercury Grand Marquis

Detailed Product Description

The Dorman 674-903 exhaust manifold is crafted from cast iron, a material known for its ability to withstand high temperatures and resist warping. Its natural finish maintains the original equipment manufacturer (OEM) look while providing corrosion resistance. The round port shape is engineered to match the exhaust ports on compatible engines, ensuring efficient exhaust gas evacuation. This exhaust manifold includes all necessary mounting hardware and a gasket, simplifying the replacement process. It is specifically designed for use with Ford Crown Victoria, Lincoln Town Car, and Mercury Grand Marquis models, making it a direct fit replacement part.

Common Applications and Issues Addressed

• Replacement for cracked or warped exhaust manifolds causing exhaust leaks
• Restores proper exhaust flow to improve engine performance and efficiency
• Eliminates exhaust manifold gasket leaks that can cause noise and emissions issues
• Prevents exhaust fumes from entering the cabin due to manifold damage
• Addresses engine misfires related to exhaust leaks in the manifold area

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid burns
• Use the included gasket and mounting hardware for a secure and leak-free fit
• Torque mounting nuts and studs to manufacturer specifications to prevent warping
• Inspect exhaust ports and surrounding components for damage before installation
• Check for exhaust leaks after installation and retighten hardware if necessary

Quality Assurance and Warranty Information

Dorman exhaust manifolds are manufactured to meet or exceed OEM standards for fit, form, and function. The 674-903 part number undergoes rigorous quality control to ensure durability and reliable performance. This product includes a limited warranty against defects in materials and workmanship, providing confidence in your replacement part.