Walker 54360 Catalytic Converter - Rear

Walker EPA Direct-Fit Catalytic Converter

Walker EPA 54360 is a direct-fit catalytic converter built for OBDII import and domestic vehicles from 1996 and newer, with fitment confirmed for 2002-2006 Nissan Altima rear applications. It uses a stainless steel body, ceramic substrate, and welded flange connections for a direct replacement layout.

Key Features

• Direct-fit design for specific applications
• Stainless steel body with round converter housing
• Ceramic substrate material
• 1 inlet and 1 outlet with 2-bolt welded flange connections
• Pre-catalyst oxygen sensor location
• EPA-compliant design for federal emissions applications
• Fits 2002-2006 Nissan Altima, rear

Product Details

Walker EPA 54360 is part of the Walker Ultra Direct-Fit Catalytic Converter line, which is built around application-specific replacement fitment for import and domestic OBDII vehicles. For the Nissan Altima, this converter is listed for 2002-2006 rear installation and is referenced for federal emissions-equipped vehicles. The design uses a stainless steel shell, ceramic substrate, and welded flange inlet and outlet connections to match the original exhaust layout more closely than a universal converter. This part cross-references Dorman - HELP 93287 for the same application.

Common Problems This Part Can Address

• Failed catalytic converter emissions test results
• Check engine light related to catalyst efficiency
• Restricted exhaust flow from a worn converter
• Exhaust odor caused by converter deterioration
• Replacement needs after corrosion or internal substrate breakdown

Installation Notes and Tips

Fitment is specific to 2002-2006 Nissan Altima rear applications. The notes call for an exhaust gasket and list additional parts needed to complete installation: 31658 and 31540. Verify federal emissions configuration before ordering, since this converter is not legal for sale or use in California and other CARB-compliant states. It is legal in New York and Maine only on EPA federal emission equipped vehicles. Confirm flange style, sensor location, and exhaust condition before installation.

Quality Assurance

Walker designs this EPA line to meet federal emissions standards while maintaining direct-fit replacement geometry for listed applications. The product is intended for EPA-compliant use on the vehicles shown in the fitment data.