Walker 83479 Catalytic Converter - Right

Walker CalCat Direct-Fit Catalytic Converter

Walker CalCat 83479 is a direct-fit catalytic converter built for specific vehicle applications and engineered to meet CARB standards where required. It is designed for a precise OE-style fit on the right side of select Ford F-150 and Lincoln Mark LT models, with ceramic substrate construction and stainless steel body materials.

Key Features

• Direct-fit catalytic converter for specific applications
• CARB certified for approved California and CARB-state use on listed vehicles
• Stainless steel body with ceramic substrate
• Round body design with OE-style pipe and flange connections
• Oxygen sensor locations: pre-catalyst and midbed
• Fits right-side applications on select Ford F-150 and Lincoln Mark LT models

Product Details

Walker CalCat is the brand’s CARB-compliant converter line, developed for vehicles that require a replacement catalytic converter with emissions certification and direct-fit installation geometry. Part number 83479 uses a 2.5-inch inlet and outlet configuration, a round body shape, and a 48.375-inch overall length to match the listed applications. This part cross-references Walker Shocks & Struts (e.g., 83479) for the same application.

Compatible With 2006 Ford F-150, right; 2006 Lincoln Mark LT, right; 2007 Ford F-150, right; 2007 Lincoln Mark LT, right; 2008 Ford F-150, right; and 2008 Lincoln Mark LT, right. It also covers 2004 Ford F-150, right, for the listed engine family. The part number 83479 is associated with CARB Executive Order D-182-69 for the approved applications shown.

Common Replacement Reasons

• Failed emissions test or catalyst efficiency fault
• Restricted exhaust flow from a worn or damaged converter
• Check engine light related to catalyst performance
• Need for a CARB-certified replacement on listed vehicles
• Replacement after corrosion, cracking, or internal substrate damage

Installation Notes

Verify engine family number and emissions requirements before ordering, since some listed applications are legal only in CARB-compliant states and others are for EPA Federal Emission Equipped Vehicles only. An exhaust gasket is recommended for several applications. Confirm the right-side position, inlet and outlet connection style, and oxygen sensor placement before installation. Part number 83479 is a direct-fit design, so it is intended to match the factory-style exhaust layout on the specified vehicles.

Quality Assurance

Walker CalCat converters are designed, tested, and validated for CARB compliance on the applications listed in the fitment data. The product line is built to provide an OE-style replacement solution for emissions-controlled vehicles that require a certified catalytic converter.