Walker 81963 Catalytic Converter

Walker CalCat 81963 Overview

Walker CalCat 81963 is a direct-fit catalytic converter built for CARB-compliant replacement applications. It is engineered for a precise OE-style fit and is listed for select 1996-1998 Chevrolet Blazer, GMC Jimmy, and Oldsmobile Bravada models.

Key Features

• Direct-fit catalytic converter with specific fitment
• CARB certified for California and other CARB-compliant states
• Standard oval body with stainless steel construction
• Ceramic substrate for emissions control performance
• 3-bolt welded flange inlet and outlet for OE-style connection points
• Post-catalyst oxygen sensor location
• Walker CalCat product line for OBDII and non-OBD applications

Product Details

This Walker CalCat catalytic converter is designed, tested, and validated for compliance with CARB standards. Part number 81963 uses a direct-fit layout with a standard oval body, stainless steel housing, and ceramic substrate, making it a practical replacement for emissions service on the listed applications. It is a fit for 1996-1998 Chevrolet Blazer, 1996-1998 GMC Jimmy, and 1996-1997 Oldsmobile Bravada configurations shown in the fitment data. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues It Can Address

• Failed catalytic converter emissions testing
• Check engine light concerns related to catalyst efficiency
• Restricted exhaust flow from a worn converter
• Replacement needs after corrosion or internal substrate damage
• CARB compliance requirements for regulated states

Installation Notes

Fitment notes call for additional parts 31589 and 31571 to complete installation. An exhaust gasket is recommended on certain 1997 California-restricted applications. Verify the engine family number and emissions certification before ordering, since some listings are legal only in CARB-compliant states for EPA Federal Emission Equipped Vehicles.

Quality Assurance

Walker CalCat converters are designed, tested, and validated to meet CARB standards, with direct-fit construction intended to deliver OE-style alignment and emissions compliance for the listed vehicles.