Dorman 674-946 Exhaust Manifold - Right

Durable Stainless Steel Exhaust Manifold for Nissan Vehicles

The Dorman 674-946 exhaust manifold is engineered to provide reliable exhaust flow for select Nissan models. Constructed from stainless steel with a natural finish, this manifold is designed to withstand high temperatures and corrosion, ensuring long-lasting performance for your Nissan Frontier, Pathfinder, NV1500, NV2500, NV3500, or Xterra.

• Made from corrosion-resistant stainless steel with a natural color finish
• Oval port shape for optimized exhaust flow
• Includes mounting hardware for straightforward installation
• Comes with exhaust and flange gaskets to ensure a proper seal
• Equipped with a heat shield to protect surrounding components
• Compatible with Nissan Frontier, Pathfinder, NV1500, NV2500, NV3500, and Xterra models

Product Features and Specifications

The Dorman 674-946 exhaust manifold features a regular grade stainless steel construction that balances durability and cost-effectiveness. Its oval port shape is designed to match the exhaust ports on compatible Nissan engines, promoting efficient exhaust gas evacuation. The included heat shield helps reduce heat transfer to nearby engine components, while the supplied gaskets and mounting hardware simplify the replacement process. This manifold is a direct replacement part, engineered to meet OEM specifications for fit and function.

Applications and Common Issues Addressed

• Replacement for cracked or warped exhaust manifolds causing exhaust leaks
• Resolves exhaust manifold gasket failures leading to noise and emissions issues
• Addresses heat damage to original manifolds affecting engine performance
• Prevents exhaust leaks that can trigger check engine lights or reduce fuel efficiency
• Restores proper exhaust flow for Nissan Frontier, Pathfinder, NV1500, NV2500, NV3500, and Xterra vehicles

Installation Notes and Tips

Installation of the Dorman 674-946 exhaust manifold requires basic mechanical skills and tools. Ensure the engine is cool before beginning work. Remove the old manifold and clean the mounting surface thoroughly to prevent gasket leaks. Use the included gaskets and mounting hardware to secure the new manifold, tightening bolts to manufacturer torque specifications. The included heat shield should be installed as shown to protect adjacent components from excessive heat.

Quality Assurance and Warranty Information

Dorman exhaust manifolds are manufactured to meet or exceed OEM standards for durability and fitment. The 674-946 part is backed by Dorman's limited warranty, which covers defects in materials and workmanship under normal use. This warranty provides added confidence in the product's reliability for Nissan Frontier, Pathfinder, NV1500, NV2500, NV3500, and Xterra owners.