Dorman 674-424 Exhaust Manifold - Right

Durable Cast Iron Exhaust Manifold for Ford and Lincoln Vehicles

The Dorman 674-424 exhaust manifold is engineered to provide reliable exhaust flow for select Ford and Lincoln models. Constructed from cast iron with a natural finish, this manifold offers durability and consistent performance for vehicles like the Ford F-150 and Lincoln Navigator.

Key Features of the Dorman 674-424 Exhaust Manifold

• Material: Heavy-duty cast iron for long-lasting strength
• Port Shape: Round ports designed for efficient exhaust gas flow
• Tube Wall Thickness: 0.82 inches for enhanced durability
• Mounting Holes: 8 mounting holes for secure installation
• Gaskets Included: Comes with both inlet and outlet gaskets for proper sealing
• Oxygen Sensor Port: Not included, compatible with vehicles that do not require sensor integration on the manifold
• Color: Natural cast iron finish

Detailed Description of the Dorman 674-424 Exhaust Manifold

This exhaust manifold is crafted from cast iron, a material known for its heat resistance and structural integrity under high-temperature conditions. The round port shape supports smooth exhaust gas evacuation, which helps maintain engine efficiency. With a tube wall thickness of 0.82 inches, the manifold withstands thermal stress and reduces the risk of cracking over time. The package includes one exhaust manifold along with inlet and outlet gaskets to ensure a proper seal during installation. This part is designed specifically for Ford and Lincoln vehicles, including the Expedition, F-150, Navigator, and Transit series (Transit-150, Transit-250, Transit-350, Transit-350 HD).

Common Applications and Issues Addressed

• Replacement for cracked or damaged exhaust manifolds on compatible Ford and Lincoln trucks and SUVs
• Restores proper exhaust flow to prevent engine performance loss
• Eliminates exhaust leaks that can cause noise and emissions problems
• Helps maintain optimal engine temperature by ensuring efficient exhaust evacuation
• Supports emission control by providing a sealed exhaust path

Installation Notes and Tips

Ensure the engine is cool before beginning installation. The Dorman 674-424 exhaust manifold includes inlet and outlet gaskets, but mounting hardware is not included and must be sourced separately. Proper torque specifications should be followed to avoid warping the manifold. Inspect the exhaust ports and surrounding components for damage or corrosion before installation to ensure a secure fit and optimal performance.

Quality Assurance and Warranty Information

Dorman manufactures this exhaust manifold to meet or exceed OEM standards for fit and function. The cast iron construction provides durability under normal operating conditions. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship. Refer to Dorman’s official warranty policy for complete coverage information.