Dorman 674-508 Exhaust Manifold

OE-Style Exhaust Manifold for Nissan Altima

This Dorman exhaust manifold is precision-engineered to match the fit and function of the original part on specified Nissan Altima applications. Built from cast iron with a natural finish, it includes the gaskets, heat shield, and downpipe hardware needed for a complete exhaust manifold repair.

Key Features

• Direct replacement exhaust manifold for specified Nissan Altima models
• Cast iron construction for durable exhaust service
• Natural finish with square port shape
• Includes gasket/seal components and mounting hardware
• Heat shield included for added thermal protection
• Package contents support a complete manifold and downpipe repair

Detailed Product Overview

Dorman 674-508 is an exhaust manifold designed for 1996-2001 Nissan Altima applications, including 1996 models built from 2/96 and 1996 models through 2/96 with California emissions. It is engineered to restore the original manifold fit and function, making it a practical choice when replacing a cracked, warped, or leaking manifold on a Nissan Altima. This part cross-references ATP 101252 for the same application.

The cast iron body helps provide the strength expected in a factory-style exhaust manifold, while the square port shape and included heat shield support proper installation and thermal management. Dorman 674-508 also includes the gaskets and downpipe hardware needed to complete the repair without sourcing the main sealing components separately.

Common Repair Uses

• Exhaust leak at the manifold or flange area
• Cracked or heat-damaged original manifold
• Failed manifold gasket sealing surfaces
• Broken or corroded manifold mounting points
• Restoring exhaust flow on a Nissan Altima

Installation Notes

Verify engine configuration, emissions notes, and build date before ordering. This part fits 1997-2001 Nissan Altima and 1996 Nissan Altima built from 2/96, plus 1996 Nissan Altima through 2/96 with California emissions. Inspect the cylinder head and downpipe mating surfaces for damage before installation, and replace any worn fasteners or sealing surfaces as needed. Confirm the square port layout matches the original manifold before assembly.

Quality Assurance

This Dorman manifold is manufactured to match original fit and function on the listed vehicles. Its OE-style design, cast iron construction, and included sealing components support a proper repair on compatible Nissan Altima exhaust systems.