Dorman 674-398 Exhaust Manifold - Right

Dorman 674-398 Exhaust Manifold for Ford Right Side

Dorman 674-398 is a cast iron exhaust manifold engineered to match the fit and function of the original manifold on specified vehicles. It includes the gasket and downpipe hardware needed for a complete repair on the right side.

Key Features

• Cast iron construction for durable exhaust service
• Natural finish with a round port shape
• Includes gasket and mounting hardware
• Regular-grade replacement part
• Direct-fit design for specified Ford and Lincoln applications

Detailed Description

This Dorman exhaust manifold is built for right-side applications on 1997-1999 Ford E-150 Econoline, E-150 Econoline Club Wagon, E-250 Econoline, and E-350 Econoline Club Wagon; 1999 Ford E-350 Super Duty, Econoline, F-250 Super Duty, and F-350 Super Duty; 1997-1998 Ford E-350 Econoline, Expedition, F-150, and F-250; and 1998 Lincoln Navigator. The part number 674-398 is a direct replacement option for vehicles that need an OE-style exhaust manifold with the correct fitment and included sealing components. This part cross-references ATP 101204 for the same application.

What It Helps Fix

• Exhaust leaks at the manifold-to-cylinder-head sealing surface
• Cracked or warped original manifold housing
• Noise from a leaking right-side exhaust manifold
• Failed gasket sealing at the manifold connection
• Downpipe connection issues during manifold replacement

Installation Notes and Tips

Fits 1997-1999 Ford E-150 Econoline, right; 1997-1999 Ford E-150 Econoline Club Wagon, right; 1997-1999 Ford E-250 Econoline, right; 1997-1999 Ford E-350 Econoline Club Wagon, right; 1999 Ford E-350 Super Duty, right; 1999 Ford Econoline, right; 1999 Ford F-250 Super Duty, right; 1999 Ford F-350 Super Duty, right; 1997-1998 Ford E-350 Econoline, right; 1997-1998 Ford Expedition, right; 1997-1998 Ford F-150, right; 1997-1998 Ford F-250, right; and 1998 Lincoln Navigator, right. Verify engine and exhaust configuration before installation, and inspect the mating surfaces for damage or carbon buildup so the new gasket can seal properly.

Quality Assurance

Dorman manufactures this manifold to match original fit and function on the listed vehicles. The cast iron construction, included gasket, and included mounting hardware support a complete right-side exhaust manifold repair for the specified Ford and Lincoln applications.