Dorman 674-407 Exhaust Manifold - Left

Dorman 674-407 Exhaust Manifold

This Dorman exhaust manifold is precision-engineered for a direct fit on select Ford trucks and SUVs. Built from cast iron with a natural finish, it restores the exhaust path on the left side of the engine and includes the gasket and downpipe hardware needed for a complete repair.

Key Features

• Cast iron construction for durable exhaust service
• Natural finish
• Round port shape
• Includes gasket and mounting hardware
• Direct replacement for select Ford applications
• Part number: 674-407

Fitment Details

Compatible with 1997-1998 Ford Expedition, left; 1997-1998 Ford F-150, left; and 1997-1998 Ford F-250, left. This exhaust manifold 674-407 is built to match the original fit and function on these applications, making it a practical choice for a Ford Expedition exhaust manifold replacement or a Ford F-150 left exhaust manifold repair.

This part cross-references ATP 101188 for the same application.

What It Helps Fix

• Cracked or warped exhaust manifold housing
• Exhaust leaks at the cylinder head flange
• Broken or missing manifold mounting points
• Noisy exhaust operation from a damaged manifold
• Failed sealing surfaces on the left-side exhaust path

Installation Notes

Verify left-side fitment before installation on your Ford Expedition, F-150, or F-250. Inspect the cylinder head surface, fasteners, and downpipe connection for damage or corrosion before assembly. Use the included gasket and hardware during installation, and follow the vehicle service procedure for torque sequence and tightening specifications.

Quality Assurance

Dorman designs this manifold as a direct replacement for the original part on specified vehicles, with materials and dimensions selected to match OE fit and function. Part number 674-407 is intended for repair work where a replacement exhaust manifold is needed on 1997-1998 Ford Expedition, F-150, and F-250 left-side applications.