Dorman 674-488 Catalytic Converter - Rear

Dorman 674-488 Catalytic Converter

Dorman 674-488 is a specific-fit catalytic converter built for select rear exhaust applications on Nissan and INFINITI vehicles. It is engineered to match original equipment fit and function, with a stainless steel body and silicon carbide substrate for a direct replacement on the listed models.

Key Features

• Specific-fit catalytic converter for rear position applications
• Stainless steel body with cylinder-style construction
• Silicon carbide substrate material
• Flanged inlet and flanged outlet for OE-style connection points
• Includes inlet gasket, outlet gasket, and installation hardware
• One sensor port for the listed exhaust configuration
• Standard replacement grade for select Nissan Murano, Pathfinder, Altima, Quest, and INFINITI QX60/JX35 applications

Detailed Description

This Dorman catalytic converter, part number 674-488, is made for direct replacement on specific rear exhaust locations. It is compatible with 2007-2018 Nissan Altima, 2009-2021 Nissan Murano, 2013-2020 Nissan Pathfinder, 2011-2014 Nissan Quest, 2014-2021 INFINITI QX60, and 2013 INFINITI JX35. The flanged inlet and outlet, stainless steel body, and OE-style dimensions support a proper exhaust connection on the listed vehicles. This part cross-references Walker Exhaust 16700 for the same application.

What This Part Helps Address

• Failed catalytic converter efficiency on the rear exhaust system
• Exhaust restriction caused by a damaged or deteriorated converter
• Check engine light concerns related to catalyst performance
• Exhaust leaks at the converter connection points
• Fitment issues from using a universal-style replacement

Installation Notes and Tips

Verify the vehicle year, make, model, and rear position before installation. Confirm the inlet and outlet flange configuration, sensor port location, and overall exhaust routing against the original part. New inlet and outlet gaskets are included, and the converter is intended for direct replacement on the listed applications. Because this part is not CARB certified, it should be matched only to vehicles and use cases where that specification is acceptable.

Quality Assurance

Dorman manufactures this converter as a standard replacement part with OE-style fit and function for the specified applications. The design uses stainless steel construction and a silicon carbide substrate to support consistent exhaust system service on the listed Nissan and INFINITI models. Part number 674-488 is built for direct-fit replacement use on the confirmed rear-position applications.