AP Exhaust 644167 Catalytic Converter - Front Right

Direct-Fit Catalytic Converter for Front Right Applications

The AP Exhaust Direct Fit Converter 644167 is a Federal / EPA direct-fit catalytic converter built for exact OE dimensions and fitment. It is engineered for front right placement on select Buick, Chevrolet, Cadillac, and GMC applications, including Buick Enclave, Chevrolet Traverse, GMC Acadia, and Cadillac XT5 models.

Key Features

• Stainless steel body material for corrosion resistance
• Federal / EPA direct-fit design for OE-style replacement
• 4-bolt welded inlet and 2-bolt welded outlet configuration
• 1 O2 sensor port for factory-style sensor integration
• 14-inch overall length for application-specific fitment
• Built to exact OE dimensions using advanced manufacturing processes

AP Exhaust Direct Fit Converter Line

AP Exhaust Direct Fit Converter products are built around precise fitment and consistent construction. The line uses proprietary substrate chemistry and modern production methods to support efficient converter loading while maintaining the dimensional accuracy needed for direct replacement on emissions-related repairs.

Detailed Description

Part number 644167 is a direct-fit catalytic converter for the front right position on 2021-2024 Buick Enclave, 2021-2023 Chevrolet Traverse, 2018-2020 Buick Enclave, 2018-2020 Chevrolet Traverse, 2017-2019 GMC Acadia, and 2017 Cadillac XT5. It is also listed for 2017 GMC Acadia. The stainless steel construction, welded inlet and outlet connections, and OE-style dimensions support a clean replacement on emissions system repairs where factory fitment matters. This AP Exhaust 644167 converter is listed for Federal and California emissions applications where noted in the fitment data.

Common Repair Uses

• Replacing a failed front right catalytic converter
• Addressing emissions-related diagnostic trouble codes
• Restoring exhaust flow after converter substrate deterioration
• Correcting exhaust leaks at the converter connection points
• Repairing fitment issues from a damaged or rusted OE converter

Installation Notes and Tips

Verify the vehicle’s emissions certification and state restrictions before installation. This part number 644167 is not for sale or use on vehicles licensed in CA, CO, ME, and NY for the 2018-2020 and 2017 applications noted in the fitment data. Confirm front right placement, inlet and outlet flange style, and the single O2 sensor port before ordering. Professional installation is recommended for proper sealing and emissions compliance.

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 loading and converter performance while maintaining competitive manufacturing consistency.