Dorman 674-166 Exhaust Manifold - Right

Exhaust Manifold for Ford Right Side Applications

This Dorman exhaust manifold is engineered to match the fit and function of the original part on specified Ford vehicles. Built from cast iron with a natural finish, it is a direct repair solution for right-side exhaust service on Ford Bronco, E-Series vans, F-Series trucks, and LTD applications.

Part number 674-166 includes the manifold gasket and downpipe hardware needed for a complete repair. It is a practical OE-style replacement for vehicles that need a precise manifold fit and dependable sealing at the exhaust port.

Key Features

• Cast iron construction for exhaust durability
• Natural finish
• Square port shape
• Right-side manifold for specified Ford applications
• Gasket included for sealing at installation
• Mounting hardware included
• Package contents: exhaust manifold, 1 manifold gasket, 2 studs, 2 nuts

Detailed Description

Dorman 674-166 is a replacement exhaust manifold designed for the right side of select Ford vehicles from 1981 through 1991. It is compatible with 1981-1982 Ford Bronco, right; 1983-1987 Ford Bronco, right; 1981-1982 Ford E-100 Econoline, right; 1983 Ford E-100 Econoline, right; 1981-1982 Ford E-150 Econoline, right; 1984-1987 Ford E-150 Econoline, right; 1981-1982 Ford E-250 Econoline, right; 1983-1987 Ford E-250 Econoline, right; 1981-1982 Ford E-350 Econoline, right; 1983-1987 Ford E-350 Econoline, right; 1981-1982 Ford F-150, right; 1983-1987 Ford F-150, right; 1981-1982 Ford F-250, right; 1983-1987 Ford F-250, right; 1981-1982 Ford F-350, right; 1983-1987 Ford F-350, right; 1983-1986 Ford LTD, right; and 1987-1991 Ford LTD Crown Victoria, right.

This part cross-references 101029 and E5TZ9430C for the same application.

Common Repair Uses

• Replacing a cracked or warped exhaust manifold
• Restoring exhaust sealing at the cylinder head
• Addressing exhaust leaks on the right side of the engine
• Repairing broken manifold studs or damaged flange sealing surfaces
• Correcting ticking, hissing, or exhaust odor from the manifold area

Installation Notes and Tips

Verify engine configuration and valve cover style before ordering, especially on 1981-1982 applications noted with a 6-bolt valve cover. Inspect the cylinder head surface, studs, and downpipe connection before installation. Replace damaged fasteners and clean all mating surfaces to support proper sealing with the included gasket and hardware.

Quality Assurance

This Dorman manifold is precision-engineered and durably manufactured to match original fit and function on the listed Ford applications. It is built as a regular-grade replacement part for direct exhaust repair service.