Walker 81764 Catalytic Converter

Walker CalCat Direct-Fit Catalytic Converter

Walker CalCat 81764 is a direct-fit catalytic converter built for specific Toyota Corolla and Chevrolet Prizm applications from 1998-2002. It is CARB certified for covered vehicles and is engineered for an OE-style fit with the correct inlet and outlet configuration for a cleaner replacement job.

The Walker CalCat line focuses on direct-fit emissions replacement parts for OBDII and non-OBD vehicles, with CARB-compliant coverage where required. This makes it a practical choice for drivers searching for a 1998-2002 Toyota Corolla catalytic converter or a 1998-2002 Chevrolet Prizm catalytic converter that matches the original exhaust layout.

Key Features

• Direct-fit catalytic converter for specific vehicle applications
• CARB certified for covered California and CARB-compliant state use
• Stainless steel body with ceramic substrate
• Round body shape with flare inlet and pipe connection outlet
• Post-catalyst oxygen sensor location
• OE-style fit for easier exhaust system alignment
• Walker CalCat part number 81764

Detailed Description

Walker 81764 uses a stainless steel housing and ceramic substrate to replace the factory converter on select Corolla and Prizm models. The converter is designed for specific fitment, with a 1.875-inch inlet and 1.875-inch outlet, and it follows the original exhaust routing for a precise installation. For shoppers comparing emissions parts by application, this direct-fit catalytic converter supports the needs of 2002 Toyota Corolla, 2001 Toyota Corolla, 2000 Toyota Corolla, 1999 Toyota Corolla, and 1998 Toyota Corolla models, along with matching Chevrolet Prizm coverage.

This part cross-references Gates 31604 for the same application.

What It Helps Address

• Failed catalytic converter emissions testing
• Check engine light concerns related to catalyst efficiency
• Exhaust restriction caused by a worn or damaged converter
• Replacement needs after corrosion or internal substrate breakdown
• CARB-compliant replacement requirements on covered vehicles

Installation Notes and Tips

Verify the engine family number and emissions label before ordering, since CARB coverage varies by application. Some 1999-2002 Chevrolet Prizm and Toyota Corolla listings note additional installation parts may be needed, and certain welded-assembly applications may require modifications. Use the vehicle-specific fitment notes to confirm the correct configuration before installation.

Quality Assurance

Walker CalCat converters are designed, tested, and validated to meet CARB standards for the listed applications. Part number 81764 is built as a direct-fit emissions replacement for specific Toyota Corolla and Chevrolet Prizm models, with CARB Executive Order D-182-45 coverage where noted in fitment.