Walker 81765 Catalytic Converter

Walker CalCat Direct-Fit Catalytic Converter

Walker CalCat Part Number 81765 is a direct-fit catalytic converter built for CARB-compliant replacement needs on select Volkswagen applications. It is designed for an OE-style fit and is validated to meet California Air Resources Board standards for covered vehicles.

Key Features

• Direct-fit design for specific vehicle applications
• CARB certified for regulated replacement use where listed
• Stainless steel body with ceramic substrate
• Round converter body with 6-bolt welded flange inlet
• Pipe connection outlet with 2.125-inch outside diameter
• Oxygen sensor locations: pre-catalyst and midbed
• Walker CalCat line for OBDII and non-OBD replacement coverage

Product Details

The Walker CalCat line is built for replacement jobs that require a precise OE-style fit and emissions compliance. This converter uses a stainless steel housing and ceramic substrate, with a specific-fit layout that follows the factory-style exhaust configuration. Part Number 81765 is listed for 1998-2001 Volkswagen Beetle, Golf, and Jetta applications, including CARB Executive Order D-182-45 coverage where noted. This part cross-references Walker Exhaust 31603 for the same application.

For Volkswagen Beetle, Volkswagen Golf, and Volkswagen Jetta owners searching for a CARB-compliant catalytic converter replacement, 81765 provides a direct-fit solution for the covered engine families and model years shown in the fitment data.

Common Problems This Part Can Address

• Failed emissions inspection due to a worn or inefficient converter
• Check engine light related to catalyst efficiency faults
• Restricted exhaust flow from a deteriorated converter core
• Need for a CARB-certified replacement on covered Volkswagen models
• Replacement of a damaged or corroded factory-style converter assembly

Installation Notes and Tips

• Verify the exact year, model, and engine family number before ordering.
• Some applications note that an exhaust gasket is recommended.
• Additional part 31603 is listed as needed to complete installation on covered fitments.
• Confirm oxygen sensor placement and flange style match the vehicle before installation.
• Follow state and local emissions regulations for CARB replacement parts.

Quality Assurance

Walker CalCat catalytic converters are designed, tested, and validated for CARB compliance on the applications listed. Part Number 81765 is built as a direct-fit replacement for select Volkswagen models and is backed by Walker’s emissions-focused product engineering.