Walker 84291 Catalytic Converter - Rear

Walker CalCat Direct-Fit Catalytic Converter

Walker CalCat Part Number 84291 is a direct-fit catalytic converter built for specific rear applications on select Honda and Acura vehicles. It is CARB certified and engineered for an OE-style fit, making it a practical replacement for emissions-related exhaust service on covered vehicles.

Key Features

• Direct-fit catalytic converter for specific rear applications
• CARB certified for use in California and other CARB-compliant states
• Stainless steel body with a ceramic substrate
• Round body design with 3-bolt welded flange inlet and outlet
• Designed and validated for OBDII and non-OBD vehicle coverage
• Walker CalCat product line focused on OE-style replacement fitment

Product Details

The Walker CalCat line is designed for emissions repair where a precise replacement converter is required. Part Number 84291 uses a specific-fit configuration with a 3-bolt welded flange on both the inlet and outlet, a stainless steel body, and a ceramic substrate. The converter is CARB Executive Order D-182-72 approved for the listed applications and is legal for sale and use in California and other states that require CARB-compliant replacement converters. This part cross-references Monroe Shocks & Struts (e.g., 5571184) for the same application.

Compatible vehicle coverage includes rear applications on the Honda Accord, Honda Pilot, Acura TSX, and Acura TL across the listed model years. Search terms such as rear catalytic converter for 2012 Honda Accord, CARB catalytic converter for 2014 Honda Pilot, and direct-fit rear converter for 2011 Acura TSX all point to this application set. Walker 84291 is also referenced for the 2012 Honda Accord and 2009 Acura TL among the covered vehicles.

Common Issues This Part Addresses

• Failed emissions testing due to a worn or inefficient rear catalytic converter
• Check engine light concerns related to catalyst efficiency codes
• Exhaust restriction caused by a deteriorated converter substrate
• Replacement needs after converter damage, contamination, or age-related breakdown
• CARB compliance requirements for regulated-state exhaust repairs

Installation Notes

• Fits 2015 Honda Pilot, rear
• Fits 2014 Honda Pilot, rear
• Fits 2014 Acura TSX, rear
• Fits 2013 Honda Pilot, rear
• Fits 2013 Acura TSX, rear
• Fits 2012 Honda Pilot, rear
• Fits 2012 Honda Accord, rear
• Fits 2012 Acura TSX, rear
• Fits 2011 Honda Accord, rear
• Fits 2011 Acura TSX, rear
• Fits 2010 Honda Accord, rear
• Fits 2010 Acura TSX, rear
• Fits 2009 Honda Accord, rear
• Fits 2009 Acura TL, rear
• Fits 2008 Honda Accord, rear

An exhaust gasket is recommended during installation. Additional parts needed to complete installation are 31602 and 31737. Verify engine family number and emissions label details before ordering, since CARB applications are tied to specific vehicle configurations.

Quality Assurance

Walker CalCat converters are designed, tested, and validated to meet CARB standards for the listed applications. Part Number 84291 is built for specific fitment and emissions compliance on covered Honda and Acura models from 2008 through 2015.