Walker 16702 Catalytic Converter - Front or Front Left

Walker EPA Direct-Fit Catalytic Converter 16702

Walker EPA 16702 is a direct-fit catalytic converter built for specific applications on Nissan and INFINITI vehicles. It is designed for OBDII-equipped 1996-and-newer vehicles and uses a stainless steel body with a ceramic substrate for a precise replacement on the front left or front exhaust position, depending on the application.

Key Features

• Direct-fit design for specific vehicle applications
• EPA-compliant replacement converter for federal-emissions vehicles
• Stainless steel body with ceramic substrate
• 6-bolt welded flange inlet and 3-bolt welded flange outlet
• Front left or front position coverage, depending on vehicle
• Post-catalyst oxygen sensor location
• Round 4-inch body profile
• Part number 16702

Product Details

Walker EPA 16702 is part of the Ultra Direct-Fit Catalytic Converter line, which focuses on OE-style fitment and emissions compliance for import and domestic OBDII vehicles. This converter is built with a stainless steel shell, a ceramic substrate, and a direct-fit layout to match the original exhaust routing on covered applications. It is a practical replacement for vehicles such as the Nissan Altima, Nissan Murano, Nissan Pathfinder, Nissan Quest, INFINITI JX35, and INFINITI QX60. This part cross-references Bosch 17203 for the same application.

Vehicle Fitment

• Fits 2015-2022 Nissan Murano, Front Left
• Fits 2016-2020 INFINITI QX60, Front Left
• Fits 2016-2020 Nissan Pathfinder, Front Left
• Fits 2011-2017 Nissan Quest, Front
• Fits 2014-2015 INFINITI QX60, Front Left
• Fits 2015 Nissan Pathfinder, Front Left
• Fits 2009-2014 Nissan Murano, Front
• Fits 2014 Nissan Pathfinder, Front Left
• Fits 2013 INFINITI JX35, Front Left
• Fits 2007-2013 Nissan Altima, Front
• Fits 2013 Nissan Pathfinder, Front Left

Common Issues This Part Addresses

• Failed catalytic converter efficiency codes
• Exhaust emissions test failure on covered federal-emissions vehicles
• Rattling or damaged converter substrate
• Restricted exhaust flow from a worn converter
• Check engine light concerns related to catalyst performance

Installation Notes

Verify the vehicle’s emissions configuration, model year, and converter position before ordering. This part uses a 6-bolt welded flange inlet and a 3-bolt welded flange outlet, and the oxygen sensor location is post-catalyst. Walker notes that an exhaust gasket is recommended, and additional parts may be needed to complete installation, including 31735 and 31377 on listed applications. Mounting hardware is not included.

Quality Assurance

Walker EPA converters are built to meet EPA standards for the listed applications and are intended for federal-emissions vehicles. This part is not CARB certified and is not legal for sale or use in California and other CARB-compliant states. It is legal in New York and Maine on EPA federal-emission-equipped vehicles only, where applicable. Part number 16702 is supplied with an installer card and warranty card.