Dorman 679-503 Catalytic Converter - Front Right or Right

OE-Style Catalytic Converter Replacement

This Dorman catalytic converter is built as a specific-fit replacement for select Nissan Pathfinder and INFINITI QX4 applications. It is engineered to match original equipment fit and function, with a stainless steel body, ceramic substrate, and flanged inlet and outlet connections for a direct replacement on the listed vehicles.

Key Features

• Specific-fit catalytic converter for select 1996-2000 Nissan Pathfinder and 1997-2000 INFINITI QX4 applications
• Stainless steel body with ceramic substrate for standard replacement service
• Flanged inlet and outlet design for OE-style mounting
• Includes inlet gasket, outlet gasket, and installation hardware
• No sensor ports and no heat shield attached
• Cross-references Walker Exhaust 50212 and Carlson 16114 for the same application

Detailed Product Overview

Dorman 679-503 is a direct replacement catalytic converter designed for the right side on 1997-2000 INFINITI QX4 and the front right position on 1996-2000 Nissan Pathfinder. The cylinder-style body measures 9.5 inches overall length and uses a flanged inlet and outlet for a secure exhaust connection. This part number, 679-503, is built to restore exhaust flow characteristics on the listed vehicles while maintaining the original equipment fit profile.

For buyers searching for a catalytic converter for 1996-2000 Nissan Pathfinder front right or a 1997-2000 INFINITI QX4 right catalytic converter, this Dorman unit provides a vehicle-specific solution. Part number 679-503 is also a practical match for shoppers comparing OE-style replacement options by application and mounting style.

What This Part Helps Address

• Damaged or rusted catalytic converter housing
• Exhaust leaks at the converter flange connections
• Restricted exhaust flow from a worn converter
• Failed emissions-related converter replacement on non-CARB applications
• Fitment issues caused by using a universal exhaust component

Installation Notes and Tips

Verify the vehicle position before ordering: this converter fits the right side on INFINITI QX4 and the front right position on Nissan Pathfinder. Confirm flange alignment, gasket surfaces, and mounting points before installation. The unit includes inlet and outlet gaskets plus installation hardware, which supports a cleaner replacement process on the listed applications.

Quality Assurance

Dorman manufactures this catalytic converter as a standard replacement part for specific vehicle applications. The stainless steel construction, ceramic substrate, and OE-style fitment focus support consistent replacement quality for the listed Nissan Pathfinder and INFINITI QX4 models.