Walker 81945 Catalytic Converter - Front Left or Left

Walker CalCat Direct-Fit Catalytic Converter

Walker CalCat Part Number 81945 is a direct-fit catalytic converter built for specific Toyota Tundra applications from 2000-2002. It is CARB certified and engineered for an OE-style fit, making it a practical replacement for emissions service on the correct front left or left position applications.

Key Features

• Direct-fit design for specific Toyota Tundra fitment
• CARB certified for approved applications
• Stainless steel body with ceramic substrate
• Small oval converter body shape
• 3-bolt welded flange inlet and 2-bolt welded flange outlet
• Post-catalyst oxygen sensor location
• Walker CalCat product line for OBDII and non-OBD replacement needs

Product Details

Walker CalCat 81945 is designed, tested, and validated to meet CARB standards on approved applications. The direct-fit layout supports OE-style replacement on the Toyota Tundra, with fitment listed for 2000, 2001, and 2002 models in front left and left positions depending on engine family and emissions configuration. This part cross-references AP Exhaust 910059 for the same application.

The CalCat line is Walker’s CARB-focused catalytic converter family, covering both OBDII and non-OBD vehicles with application-specific fitment. For buyers searching for a 2000-2002 Toyota Tundra catalytic converter, Walker 81945 provides a vehicle-specific replacement built around the original exhaust layout.

Common Issues This Part Can Address

• Failed emissions inspection due to a worn catalytic converter
• Check engine light related to catalyst efficiency codes
• Restricted exhaust flow from a deteriorated converter substrate
• Corrosion or damage at the original converter body or flanges
• Need for a CARB-compliant replacement on approved Toyota Tundra applications

Installation Notes

• Fits 2002 Toyota Tundra, front left, for EFN 2TYXT04.7FBY applications.
• Fits 2002 Toyota Tundra, left, for EFN 2TYXT04.7XBX applications.
• Fits 2001 Toyota Tundra, front left, for EFN 1TYXT04.7FBY applications.
• Fits 2001 Toyota Tundra, left, for EFN 1TYXT04.7XBX applications.
• Fits 2000 Toyota Tundra, front left, for EFN YTYXT04.7GXW applications.
• Fits 2000 Toyota Tundra, left, for EFN YTYXT04.7XBV applications.
• Exhaust gasket is recommended on listed Colorado applications.
• Additional part(s) are noted for some California-approved applications; verify the exact engine family number before installation.

Quality Assurance

Walker CalCat converters are validated for CARB compliance on the applications listed in the fitment data. Part Number 81945 is built with a stainless steel body and ceramic substrate to match the requirements of specific emissions-controlled Toyota Tundra replacements.