Dorman 674-599 Exhaust Manifold - Left

Dorman 674-599 Exhaust Manifold for Nissan

Dorman 674-599 is a cast iron exhaust manifold engineered to match the original fit and function on specified Nissan applications. It includes the gaskets, flange, heat shield, and downpipe hardware needed for a complete exhaust manifold repair.

Key Features

• Direct replacement exhaust manifold for the left side
• Cast iron construction for durability in high-heat exhaust service
• Natural finish with round port shape
• Includes gasket or seal and heat shield
• Mounting hardware included for installation
• Fits 1999-2004 Nissan Frontier, left
• Fits 2000-2004 Nissan Xterra, left

Detailed Description

This Dorman exhaust manifold, part number 674-599, is built for 1999-2004 Nissan Frontier and 2000-2004 Nissan Xterra models in the left-side position. It is manufactured to match the original manifold’s fit and function, making it a practical replacement when the factory unit is cracked, warped, or leaking. The cast iron body, round ports, and included heat shield support reliable exhaust sealing and proper routing on the specified Nissan Frontier and Nissan Xterra applications.

This part cross-references ATP 101336 for the same application.

What It Helps Fix

• Exhaust leaks at the manifold or flange
• Ticking or puffing noises from a cracked manifold
• Broken or missing manifold mounting hardware
• Failed gasket sealing at the cylinder head or downpipe connection
• Heat-related damage around the exhaust manifold area

Installation Notes and Tips

Verify left-side fitment before ordering and compare the original manifold, port shape, and mounting points to the vehicle. Replace damaged sealing surfaces and follow factory torque specifications during installation. Because this repair involves exhaust components, inspect the flange, gasket surfaces, and nearby hardware for wear before reassembly.

Quality Assurance

Dorman manufactures this exhaust manifold as a replacement part for specified Nissan vehicles, with fit and function engineered to align with the original equipment design. Part number 674-599 is built for repair-focused service on the listed applications.