Dorman 674-998 Exhaust Manifold - Right

OE-Style Exhaust Manifold for Ford F-150

This Dorman exhaust manifold is precision-engineered for the right side of select Ford F-150 and Lincoln Mark LT applications. Built from stainless steel with a natural finish, it is made to match the fit and function of the original manifold on specified vehicles, including the gaskets and downpipe hardware needed for a complete repair.

Part number 674-998 is a direct-fit exhaust manifold solution for 2011-2014 Ford F-150 right-side applications and 2011-2014 Lincoln Mark LT right-side applications. It is a practical replacement when the original manifold is cracked, warped, or leaking.

Key Features

• Stainless steel construction for exhaust durability
• Natural finish with round port shape
• Right-side exhaust manifold for specified Ford and Lincoln trucks
• Includes gasket, mounting hardware, and heat shield
• No oxygen sensor port
• 1.5-inch collector port diameter
• Two mounting holes for the specified application

Detailed Description

Dorman 674-998 is an exhaust manifold replacement engineered for the right side of 2011-2014 Ford F-150 and 2011-2014 Lincoln Mark LT models. The stainless steel body and regular-grade construction are designed to restore the original exhaust routing and sealing surface on the affected vehicles. This part cross-references Ford BL3Z9430C for the same application.

Because the manifold is built to match OE fit and function, it is suited for repairs where the factory manifold has developed leaks, cracks, or flange distortion. The included gasket, hardware, and heat shield support a complete exhaust manifold service on the listed vehicles.

Common Repair Uses

• Exhaust manifold leak at the cylinder head
• Cracked or warped factory manifold
• Exhaust noise from a failed manifold seal
• Broken or corroded manifold mounting points
• Heat-related damage to the original manifold assembly

Installation Notes and Tips

Fits 2011-2014 Ford F-150, right. Fits 2011-2014 Lincoln Mark LT, right. Confirm engine-side manifold orientation, port alignment, and collector connection before installation. Inspect the mating surfaces for carbon buildup or damage, and replace any worn fasteners or damaged exhaust components during service. Verify that the heat shield and gasket are positioned correctly before tightening to specification.

Quality Assurance

Dorman manufactures this manifold to match the fit and function of the original part on the listed vehicles. The stainless steel construction, included gasket, hardware, and heat shield support a complete repair for the specified Ford F-150 and Lincoln Mark LT applications.