Walker 16571 Catalytic Converter - Front Left or Front Right

Walker EPA Direct-Fit Catalytic Converter 16571

Walker EPA Ultra Direct-Fit Catalytic Converter 16571 is built for front-position exhaust service on select Lexus applications from 2001-2010. It is a direct-fit replacement for OBDII-equipped vehicles and is designed to meet EPA standards while maintaining the fit and function needed for a proper exhaust repair.

Key Features

• Direct-fit catalytic converter for specific vehicle applications
• Front converter position with 3-bolt welded flange inlet and 2-bolt welded flange outlet
• Round steel body with ceramic substrate material
• EPA-compliant design for federal emissions applications
• Compatible with front left and front right locations where listed
• Walker EPA product line for import and domestic OBDII vehicles
• Part number 16571 for application matching and catalog lookup

Product Details

This Walker EPA catalytic converter is engineered for select Lexus GS430, LS430, and SC430 models, including front left and front right applications where specified. The direct-fit design supports a cleaner replacement process by matching the original-style inlet and outlet configuration, overall length, and front converter placement. Part number 16571 is listed for 2001-2007 Lexus GS430 front left and front right, 2001-2006 Lexus LS430 front left and front right, and 2002-2010 Lexus SC430 front left and front right.

The Walker EPA line focuses on compliant replacement converters for import and domestic OBDII vehicles. This unit uses a ceramic substrate inside a steel round body and is intended for federal emissions applications. This part cross-references Eastern Catalytic 40523 for the same application.

Common Repair Uses

• Replacing a failed front catalytic converter on a Lexus GS430, LS430, or SC430
• Addressing emissions-related diagnostic trouble codes tied to converter efficiency
• Restoring exhaust flow after a damaged or restricted front converter
• Repairing exhaust leaks at the inlet or outlet flange connection
• Replacing a worn direct-fit converter with an EPA-compliant unit

Installation Notes

Fits 2001-2007 Lexus GS430, front left and front right; 2001-2006 Lexus LS430, front left and front right; and 2002-2010 Lexus SC430, front left and front right. Exhaust gasket is recommended, and additional parts 31350 and 31374 are listed as needed to complete installation. Verify federal emissions requirements before purchase, since this converter is not legal for sale or use in California and other CARB-compliant states. It is legal in New York and Maine on EPA federal-emission-equipped vehicles only.

Quality Assurance

Walker EPA Ultra Direct-Fit Catalytic Converters are built to comply with EPA standards and are intended for proper fitment on listed applications. Package contents include an installer card and warranty card.