Dorman 674-696XD Exhaust Manifold - Left

Dorman 674-696XD Exhaust Manifold for Ford Super Duty

The Dorman 674-696XD exhaust manifold is a direct-fit replacement for select Ford Super Duty applications with a left-side mounting position. It uses cast iron construction and a specialized ceramic coating to help distribute heat more evenly, supporting reduced thermal stress and smoother exhaust gas flow.

• Cast iron exhaust manifold with metallic gray finish
• Specialized ceramic coating for more even heat distribution
• Round port shape with 1.5 in. collector port diameter
• Left-side fitment for select Ford F-250 Super Duty and Ford F-350 Super Duty applications
• Standard replacement grade for exhaust manifold service
• Heat shield included
• Gasket or seal included

Detailed Product Overview

Built for 2005-2010 Ford F-250 Super Duty and 2005-2010 Ford F-350 Super Duty left-side applications, this Dorman exhaust manifold is engineered to replace the original manifold with a coated design that helps manage heat more consistently. The ceramic coating is intended to reduce the conditions that can contribute to thermal cracking while also promoting smoother exhaust flow. Part number 674-696XD is also listed for 2005-2006 Ford F-350 left-side applications with ceramic coating. This part cross-references Ford OE number 5C3Z9431BA for the same application.

What It Helps Address

• Cracked or warped exhaust manifold on the left side
• Exhaust leaks at the manifold-to-cylinder head interface
• Heat-related manifold stress from uneven temperature distribution
• Restricted exhaust flow caused by damaged manifold surfaces
• Noise from a leaking or failing exhaust manifold

Installation Notes and Tips

Verify left-side placement and confirm round-port, 8-hole mounting, and collector dimensions before installation. Inspect the mating surfaces, fasteners, and adjacent exhaust components for wear or damage, and replace any compromised sealing surfaces during service. Part number 674-696XD is a direct replacement for select Ford F-250 Super Duty and Ford F-350 Super Duty trucks, so matching the vehicle year, model, and position is essential.

Quality Assurance

Dorman supplies this manifold as a standard replacement part with cast iron construction, ceramic coating, heat shield, and gasket/seal included. The coated design is intended to improve heat management compared with an uncoated replacement manifold.