Dorman 674-957 Exhaust Manifold - Left

OE-Style Exhaust Manifold for Explorer and Mountaineer

This Dorman exhaust manifold is 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 left side on 2002-2005 Ford Explorer and 2002-2005 Mercury Mountaineer applications. Part number 674-957 is supplied with the gaskets and downpipe hardware needed for a complete exhaust manifold repair.

Key Features

• Cast iron construction for exhaust durability
• Natural finish
• Round port shape
• Heat shield included
• Gasket or seal included
• Mounting hardware included
• Package contents: exhaust manifold, manifold gasket, studs, and nuts
• Fits the left side on select Ford Explorer and Mercury Mountaineer models

Detailed Description

Dorman 674-957 is a direct-fit exhaust manifold for the left side of 2002-2005 Ford Explorer and 2002-2005 Mercury Mountaineer vehicles. It is precision-engineered and durably manufactured to match the original manifold’s fit and function, helping restore proper exhaust routing on the specified applications. The cast iron body and integrated heat shield support long-term service in high-temperature exhaust environments, while the included gasket and hardware help complete the repair. This part cross-references OE numbers 1L2Z9431BA and 101542 for the same application.

What It Helps Fix

• Cracked or warped exhaust manifold housing
• Exhaust leaks at the manifold-to-cylinder-head sealing surface
• Broken or missing manifold studs and nuts
• Noise from a leaking left-side manifold on Explorer or Mountaineer models
• Failed manifold gasket sealing at the exhaust connection

Installation Notes and Tips

Fits 2002-2005 Ford Explorer, left. Fits 2002-2005 Mercury Mountaineer, left. Confirm engine and chassis details before installation, and inspect the cylinder-head surface, fastener threads, and downpipe connection for damage or corrosion. Replace any worn sealing surfaces and follow factory torque specifications during assembly.

Quality Assurance

Dorman designs this manifold as an OE-style replacement for the listed vehicles, with fit and function matched to the original part. The cast iron construction, included heat shield, and complete sealing components support a proper repair on the specified Ford and Mercury applications.