Walker 47848 Catalytic Converter

Walker EPA Direct-Fit Catalytic Converter

Walker EPA Part Number 47848 is a direct-fit catalytic converter built for specific applications and engineered to meet EPA standards. It is designed for 2008-2012 Scion xD models with federal emissions equipment, offering a direct replacement path for underbody exhaust service.

Walker Ultra Direct-Fit Catalytic Converters are part of the EPA-focused Walker EPA line, built for import and domestic OBDII vehicles. This product line emphasizes direct-fit installation, emissions compliance for covered applications, and OE-style fitment for repair work on vehicles such as the Scion xD.

• Direct-fit catalytic converter for specific vehicle applications
• EPA-compliant design for covered federal emissions use
• Stainless steel body with ceramic substrate material
• Underbody converter position
• 2-bolt welded flange inlet and outlet connections
• Post-catalyst oxygen sensor location
• Compatible with 2008-2012 Scion xD, underbody
• Walker 47848 cross-reference for the same application

Detailed Product Overview

This catalytic converter uses a round stainless steel body with a ceramic substrate and direct-fit configuration to match the original exhaust layout on the listed Scion xD applications. The overall length measures 82.5 inches, with a 4 inch by 8 inch by 4 inch body profile and a 2-bolt welded flange inlet and outlet connection. Walker 47848 is listed for federal emissions-equipped vehicles and is not CARB certified.

Fitment coverage includes 2008-2012 Scion xD, underbody, with notes calling for an exhaust gasket and additional parts 31639 and 31387 to complete installation. The part is also referenced by AP Exhaust 643111 and NGK 52159 for the same application.

Common Repair Applications

• Failed catalytic converter efficiency codes
• Exhaust leaks at the converter flange area
• Emissions test failure on federal-emissions vehicles
• Rattling or damaged converter substrate
• Replacement of a worn underbody converter on a Scion xD

Installation Notes

Verify federal emissions fitment before ordering. This converter is listed for 2008-2012 Scion xD models and requires attention to the noted additional parts for installation. An exhaust gasket is recommended, and the vehicle-specific flange style should be matched before assembly. Confirm oxygen sensor placement and exhaust routing against the original unit.

Quality Assurance

Walker designs this EPA line for direct-fit replacement service on OBDII vehicles, with compliance-focused construction and application-specific fitment. Part number 47848 is intended for the listed federal-emissions Scion xD applications only and is not legal for sale or use in California and other CARB-compliant states.