Walker 54976 Catalytic Converter - Rear

Direct-Fit Rear Catalytic Converter

Walker EPA 54976 is a direct-fit catalytic converter for select Nissan Pathfinder and INFINITI QX60 applications. It is built for OBDII-equipped vehicles and uses a specific-fit design to match the listed rear exhaust positions.

Key Features

• Walker EPA line direct-fit catalytic converter
• Specific fit for rear exhaust applications
• Stainless steel body construction
• Ceramic substrate material
• Round body shape with 48.25-inch overall length
• 3-bolt welded flange inlet design and 2-bolt welded flange outlet design
• 2.5-inch outlet diameter
• EPA-compliant design for federal emission applications

Product Details

Walker 54976 is engineered as a replacement catalytic converter for the rear position on 2013-2017 Nissan Pathfinder and INFINITI QX60 models listed in the fitment data. The Walker EPA product line focuses on direct-fit exhaust replacement parts for import and domestic OBDII vehicles, with a design that follows the original exhaust layout for the specified application. This part cross-references AP Exhaust 643144 for the same application.

Built with a stainless steel body and ceramic substrate, this converter is designed to meet EPA standards while maintaining the fit and function expected in a direct replacement. The flange-style inlet and outlet connections support installation on the specified rear exhaust configuration for Pathfinder and QX60 applications. Part number 54976 is also referenced as 52699 in interchange data.

Common Repair Uses

• Replacement for a failed rear catalytic converter
• Repair for emissions-related diagnostic trouble codes
• Correction for restricted exhaust flow in the rear exhaust section
• Replacement for a damaged or rusted converter body
• Service part for exhaust noise or efficiency concerns tied to converter wear

Installation Notes

• Fits 2017 INFINITI QX60, rear
• Fits 2016-2017 Nissan Pathfinder, rear
• Fits 2014-2016 INFINITI QX60, rear
• Fits 2015 Nissan Pathfinder, rear
• Fits 2014 Nissan Pathfinder, rear
• Fits 2013 INFINITI JX35, rear
• Fits 2013 Nissan Pathfinder, rear

Exhaust gasket is recommended for installation. Additional parts are listed in the fitment notes for certain applications, so verify the vehicle’s emission configuration and required components before service. This converter is not CARB certified and is not legal for sale or use in California and other CARB-compliant states where noted in the fitment data.

Quality Assurance

Walker EPA catalytic converters are built to comply with EPA standards and are intended for the listed federal-emissions applications. Confirm the vehicle year, make, model, rear position, and emission package before ordering Walker 54976.