Walker 55390 Catalytic Converter - Right

Walker EPA Direct-Fit Catalytic Converter 55390

Walker EPA 55390 is a direct-fit catalytic converter built for specific applications on 2000-2005 Volkswagen Passat, 2000-2001 Audi A6, and 2000-2001 Audi A6 Quattro. It is engineered for OBDII vehicles and uses a stainless steel body with a ceramic substrate for EPA-compliant replacement service.

Key Features

• Direct-fit design for specific vehicle applications
• EPA-compliant replacement converter for OBDII vehicles
• Stainless steel body construction
• Ceramic substrate material
• 3-bolt welded flange inlet and 2-inch pipe outlet
• Pre- and post-catalyst oxygen sensor locations
• Converter quantity: 2
• Overall length: 46.5 to 50.0 inches

Product Details

Walker EPA 55390 is part of the Walker Ultra Direct-Fit Catalytic Converter line, which focuses on direct replacement fitment for import and domestic OBDII vehicles. This unit is configured for right-side installation on the listed applications and is designed to replace both front and rear OE converters on the 2000-2005 Volkswagen Passat. For the 2000-2001 Audi A6 and Audi A6 Quattro, it is listed for the right side with federal and California emission model coverage noted in the fitment data. This part cross-references Eastern Catalytic 40464 and TYC 4240 for the same application.

What It Helps Address

• Failed catalytic converter efficiency codes
• Exhaust restriction from a worn or damaged converter
• Emissions test failure related to converter performance
• Exhaust leaks at the converter connection points
• Check engine light concerns tied to pre- or post-catalyst sensor readings

Installation Notes

Fits 2000-2005 Volkswagen Passat, right; 2000-2001 Audi A6, right; and 2000-2001 Audi A6 Quattro, right. Exhaust gasket is recommended during installation. Verify the inlet flange, outlet diameter, oxygen sensor locations, and emission requirements before installation. This converter is not legal for sale or use in California and other CARB-compliant states; review local aftermarket converter regulations before ordering.

Quality Assurance

Walker EPA 55390 is built to meet EPA standards for the listed applications and is intended as a direct-fit replacement for specific OE converter configurations. The Walker Ultra Direct-Fit line is positioned for assured compliance on covered OBDII vehicles, with fitment and emissions configuration defined by the application data.