Dorman 674-434 Exhaust Manifold - Right

Durable Cast Iron Exhaust Manifold for Nissan and Infiniti

The Dorman 674-434 exhaust manifold is designed to provide reliable exhaust flow management for your Nissan Pathfinder or Infiniti QX4. Crafted from cast iron with a natural finish, this exhaust manifold ensures durability and consistent performance under high-temperature conditions.

• Constructed from durable cast iron material
• Natural color finish for corrosion resistance
• Oval port shape for optimized exhaust flow
• Includes mounting hardware for straightforward installation
• Comes with exhaust manifold gasket, output gasket, and flange gasket
• Equipped with a heat shield to protect surrounding components
• Grade type: Regular for standard replacement needs

Product Details and Specifications

The Dorman 674-434 exhaust manifold is engineered specifically for compatibility with Nissan Pathfinder and Infiniti QX4 models. Its cast iron construction offers strength and heat resistance, essential for managing exhaust gases efficiently. The oval port shape is designed to match the engine’s exhaust ports, ensuring a proper seal and smooth gas flow. This manifold includes all necessary mounting hardware and gaskets, including the manifold gasket, output gasket, and flange gasket, to facilitate a complete and secure installation. Additionally, the included heat shield helps reduce heat transfer to nearby engine components, enhancing overall engine bay safety.

Compatible Vehicles and Common Applications

This exhaust manifold is compatible with the following vehicles:

• Nissan Pathfinder
• Infiniti QX4

It is commonly used to address issues such as:

• Exhaust leaks causing noise or reduced engine efficiency
• Cracked or damaged manifolds due to heat stress
• Failed or worn gaskets leading to exhaust gas escape
• Heat damage to surrounding engine components
• Replacement of corroded or rusted manifolds

Installation Notes and Tips

Installation of the Dorman 674-434 exhaust manifold should be performed by a qualified technician or experienced DIYer. Ensure the engine is cool before beginning work. Use the included mounting hardware and gaskets to achieve a proper seal and prevent exhaust leaks. Torque all bolts to manufacturer specifications. Inspect the heat shield placement carefully to avoid contact with other engine parts. Replacing the exhaust manifold gasket and output gasket simultaneously helps maintain optimal exhaust system integrity.

Quality Assurance and Warranty Information

Dorman manufactures this exhaust manifold to meet or exceed OEM standards for fit, form, and function. The cast iron material and included heat shield contribute to long-term durability. This part comes with a limited warranty covering defects in material and workmanship, providing confidence in its reliability for Nissan Pathfinder and Infiniti QX4 owners.