Walker 84757 Catalytic Converter with Integrated Exhaust Manifold

Walker CalCat Catalytic Converter

Walker CalCat 84757 is a specific-fit catalytic converter with integrated exhaust manifold built for CARB-compliant applications. It delivers an OE-style fit and is engineered with a stainless steel body, ceramic substrate, and welded flange connections for a direct replacement on approved vehicles.

Key Features

• CARB certified with Executive Order D-182-80 for regulated applications.
• Specific-fit design for a precise OE-style installation.
• Stainless steel converter body with a ceramic substrate.
• Integrated manifold design with 8-bolt welded inlet and 4-bolt welded outlet flanges.
• Includes an inlet gasket; sensor ports are provided for oxygen sensor placement.

Detailed Description

This Walker CalCat 84757 catalytic converter is designed, tested, and validated to meet CARB standards for approved OBDII and non-OBD vehicles. The integrated exhaust manifold layout, round body shape, and welded flange construction support a factory-style exhaust connection, while the ceramic substrate and stainless steel body provide the construction expected in a premium emissions replacement part. It is a direct-fit solution for 2014-2019 Jeep Cherokee and 2015-2019 Ram ProMaster City applications listed in the fitment data.

Walker CalCat is the product line for emissions parts that must meet California requirements, and this converter follows that focus with CARB certification and a specific application design. Part number 84757 is also cross-referenced to AP Exhaust 776013 for the same application.

Common Issues This Part Can Address

• Failed emissions testing due to a worn or inefficient catalytic converter.
• Exhaust leaks at the manifold-to-pipe connection.
• Check engine light concerns related to catalyst efficiency or oxygen sensor readings.
• Corrosion or damage in the converter body or flange area.
• Replacement needs for a CARB-certified exhaust emissions component.

Installation Notes and Tips

Verify the vehicle’s emissions requirements, sensor port layout, and flange style before installation. This part uses an 8-bolt welded inlet flange and a 4-bolt welded outlet flange, with two oxygen sensor ports and an inlet gasket included. Inlet and outlet mounting hardware are not included.

Quality Assurance

Walker designed, tested, and validated this CalCat converter for compliance with CARB standards. The part number 84757 carries CARB Executive Order D-182-80 and New York certification for the listed applications.