Dorman 674-549 Exhaust Manifold

Dorman Exhaust Manifold for Nissan Pickup and D21

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 direct replacement service on 1990-1997 Nissan D21 and Nissan Pickup applications, including D21 Hardbody coverage.

• Cast iron construction for durable exhaust service
• Natural finish with round port shape
• Includes gasket/seal and heat shield
• Mounting hardware included for the repair
• Package contents support a complete manifold replacement
• Part number 674-549 for easy identification

Detailed Product Overview

Dorman 674-549 is an exhaust manifold replacement for Nissan Pickup and Nissan D21 models that need an OE-style manifold with the correct fit and function. It is engineered to align with the original manifold design on the listed vehicles, and the cast iron construction helps provide the strength expected in a high-heat exhaust location. The included gaskets, flange components, studs, nuts, and heat shield support a complete exhaust manifold repair on the specified Nissan Pickup and Nissan D21 applications. This part cross-references ATP 101278 for the same application.

Common Repair Applications

• Cracked or warped exhaust manifold on a Nissan D21
• Exhaust leak at the manifold-to-cylinder-head sealing surface
• Broken manifold studs or damaged flange hardware
• Heat shield damage on a Nissan Pickup exhaust manifold
• Replacement for a worn D21 Hardbody exhaust manifold assembly

Installation Notes and Tips

Verify engine and vehicle configuration against the listed fitment before installation. Clean the cylinder-head mounting surface thoroughly, inspect the exhaust flange and studs for damage, and replace any worn fasteners or sealing surfaces as needed. Follow factory torque specifications and tighten hardware in the proper sequence to help achieve a secure seal on the Nissan Pickup or Nissan D21.

Quality Assurance

This Dorman exhaust manifold is manufactured to match original fit and function on the specified vehicles. Dorman focuses on direct-replacement parts for repair work, and this part number 674-549 is built for service on the listed Nissan applications.

Compatible Vehicles

• Fits 1995-1997 Nissan Pickup, N/A
• Fits 1997 Nissan Pickup, N/A, D21 Hardbody
• Fits 1990-1994 Nissan D21, N/A