AP Exhaust 645167 Catalytic Converter - Left

OE-Fit Catalytic Converter for F-150

The AP Exhaust 645167 is a Federal / EPA direct-fit catalytic converter built for 2015-2020 Ford F-150 applications. It uses a stainless steel body, a ceramic substrate, and OE-style dimensions to support proper exhaust alignment and emissions system function.

Built for the front left position on the Ford F-150, this converter is engineered for direct replacement service with the correct inlet and outlet configuration. The AP Exhaust 645167 also includes two O2 sensor ports and an outlet gasket for a cleaner, more accurate installation.

Key Features

• Federal / EPA direct-fit catalytic converter
• Stainless steel body for exhaust system durability
• Ceramic substrate material
• 2-bolt loose flange inlet
• 2.5-inch OD outlet
• Two O2 sensor ports
• Overall length: 28 inches
• Fits the front left position on Ford F-150 models

Fitment Details

• Fits 2015-2020 Ford F-150, N/A (Front, Left); Federal and California Emissions. Not for sale or use on vehicles licensed in CA, CO, ME, or NY. Restrictions may apply in other states.
• Fits 2015-2020 Ford F-150, Left; Federal and California Emissions. Not for sale or use on vehicles licensed in CA, CO, ME, or NY. Restrictions may apply in other states.

This part cross-references Ford FL3Z-5E212-C for the same application.

What It Helps Address

• Failed catalytic converter efficiency codes
• Restricted exhaust flow from a worn converter
• Emissions test failures related to converter performance
• Exhaust leaks at the converter connection points
• Fitment issues from a damaged or incorrect replacement converter

Installation Notes

Verify the inlet flange style, outlet diameter, O2 sensor port count, and left-side placement before installation. This converter is built to OE dimensions for direct-fit replacement on the Ford F-150, and the included outlet gasket supports proper sealing at the outlet connection. Confirm emissions compliance for your vehicle and location before purchase and installation.

Quality Assurance

AP Exhaust uses automated workstations, spinner welding equipment, and high-speed production lines to build converters to exact OE dimensions and fitment. The ARISTO substrate chemistry is used to support efficient catalyst loading and consistent converter performance while maintaining competitive manufacturing standards.