Dorman 674-378 Exhaust Manifold - Right

Dorman 674-378 Exhaust Manifold for Ford

This Dorman exhaust manifold is precision-engineered to match the fit and function of the original part on specified vehicles. Built from cast iron with a natural finish, it is made for the right-side exhaust repair on 1998-2000 Ford Explorer and 1998-2000 Ford Ranger applications.

It includes the gasket and downpipe hardware needed for a complete repair, helping restore a secure exhaust seal and proper manifold-to-pipe connection. The Dorman 674-378 is a direct replacement choice for drivers servicing a Ford Explorer right exhaust manifold or a Ford Ranger right exhaust manifold.

Key Features

• Cast iron construction for exhaust manifold durability
• Natural finish
• Round port shape
• Includes gasket and mounting hardware
• Regular grade replacement part
• Fits right-side applications only

Detailed Description

The Dorman 674-378 exhaust manifold is engineered for specified Ford trucks and SUVs to match original fit and function. It is designed for 1998-2000 Ford Explorer, right, and 1998-2000 Ford Ranger, right, making it a focused replacement for common exhaust leak and manifold replacement jobs. The cast iron body supports long-term exhaust service, while the included gasket helps complete the sealing surface during repair. This part cross-references ATP 101235 for the same application.

What It Helps Repair

• Exhaust leaks at the manifold-to-cylinder head sealing surface
• Cracked or warped original manifold housing
• Broken or corroded manifold-to-downpipe connection points
• Noise from a leaking right-side exhaust manifold
• Failed emissions or drivability concerns related to exhaust leakage

Installation Notes and Tips

Verify vehicle year, make, model, and right-side position before installation. Inspect the cylinder head sealing surface and downpipe connection for damage or corrosion before assembly. Clean mating surfaces thoroughly and follow factory torque specifications during installation. Confirm that the included gasket and bolts are used as directed for the repair.

Quality Assurance

Dorman manufactures this exhaust manifold to match original fit and function on the listed Ford applications. Part number 674-378 is built as a direct replacement for specified vehicles and is supported by Dorman’s OE-style replacement engineering approach.