Walker 84230 Catalytic Converter - Rear

Walker CalCat 84230 Catalytic Converter

Walker CalCat 84230 is a direct-fit catalytic converter built for specific rear applications on select Chevrolet Impala and Impala Limited models. It is CARB certified and designed for OBDII and non-OBD vehicles where a compliant replacement converter is required.

Key Features

• Direct-fit design for OE-style installation on the listed rear position
• CARB certified for use in California and other states that require CARB-compliant replacement converters
• Stainless steel body with a ceramic substrate
• Round converter body with 2-bolt welded flange inlet and pipe connection outlet
• Specific fitment for 2012-2015 Chevrolet Impala and Impala Limited rear applications
• Walker CalCat line focuses on compliant replacement converters with precise fitment

Product Details

This Walker CalCat catalytic converter is engineered for the rear exhaust position on 2012 Chevrolet Impala, 2013 Chevrolet Impala, 2014 Chevrolet Impala Limited, and 2015 Chevrolet Impala Limited. The part number 84230 is built with a stainless steel housing, ceramic substrate, and OE-style dimensions to match the listed application. For buyers searching for a 2012-2015 Chevrolet Impala rear catalytic converter or a CARB-compliant replacement for a Chevrolet Impala Limited, this unit is designed to meet those needs with direct-fit packaging.

The Walker CalCat product line is aimed at replacement converters that follow emissions compliance requirements while maintaining a precise fit for the vehicle platform. Part number 84230 is identified for rear installation and uses a 2-bolt welded flange inlet with a pipe connection outlet.

Common Problems This Part Can Address

• Failed catalytic converter emissions testing
• Check engine light concerns related to catalyst efficiency
• Exhaust restriction caused by a worn or damaged converter
• Need for a CARB-certified replacement on regulated vehicles
• Fitment issues from using a universal converter instead of a direct-fit unit

Installation Notes

Fits 2015 Chevrolet Impala Limited, rear. Fits 2014 Chevrolet Impala Limited, rear. Fits 2013 Chevrolet Impala, rear. Fits 2012 Chevrolet Impala, rear. An exhaust gasket is recommended, and additional part 31652 is noted as needed to complete installation. Verify the vehicle’s engine family number and emissions requirements before installation, especially for California and other CARB-regulated states. Part number 84230 uses a specific fit design and does not include an air tube or oxygen sensor port location.

Quality Assurance

Walker CalCat converters are designed, tested, and validated for CARB compliance on the listed applications. This part is CARB certified and built to deliver OE-style fitment for the specified Chevrolet Impala and Impala Limited rear applications.