AP Exhaust 644234 Catalytic Converter - Front

AP Exhaust 644234 Direct Fit Converter

AP Exhaust 644234 is a Federal / EPA direct-fit catalytic converter built for front-position exhaust replacement on select Ford Escape and Lincoln MKC applications. It uses a stainless steel body with a ceramic substrate and includes two O2 sensor ports for the specified emissions setup.

Key Features

• Federal / EPA direct-fit catalytic converter
• Stainless steel body for exhaust system durability
• Ceramic substrate material
• Front-position replacement for confirmed applications
• Welded flange inlet and outlet connections
• Two O2 sensor ports
• AP Exhaust Direct Fit Converter line

Product Details

The AP Exhaust Direct Fit Converter line focuses on application-specific exhaust replacement parts that match the original mounting style and emissions configuration. Part number 644234 is built for 2017-2019 Ford Escape, front, and 2017-2019 Lincoln MKC, front, with Federal and California emissions coverage noted in the fitment data. If you are replacing a worn or restricted front catalytic converter on a Ford Escape or Lincoln MKC, AP Exhaust 644234 provides a direct-fit service part for the listed vehicles.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues This Part Addresses

• Check engine light related to catalyst efficiency faults
• Restricted exhaust flow from a deteriorated converter
• Failed emissions inspection tied to converter performance
• Exhaust leaks at the front converter connection points
• Noise or odor concerns caused by a damaged catalytic converter

Installation Notes

Fits 2017-2019 Ford Escape, front. Fits 2017-2019 Lincoln MKC, front. Verify the vehicle’s emissions configuration and sensor layout before installation. The unit uses welded flange inlet and outlet connections and includes two O2 sensor ports, so the existing exhaust and sensor routing should be matched to the replacement part before assembly.

Quality Assurance

AP Exhaust 644234 is built with a stainless steel housing and ceramic substrate for direct-fit catalytic converter replacement in the listed applications. The part is boxed for retail handling and shipment.