AP Exhaust 644108 Catalytic Converter - Front

Overview of AP Exhaust Catalytic Converter 644108

The AP Exhaust catalytic converter part number 644108 is designed specifically for Ford Transit models including Transit-150, Transit-250, Transit-350, and Transit-350 HD. This federal EPA direct-fit converter ensures compliance with emissions standards while maintaining proper exhaust flow.

• Federal / EPA direct-fit catalytic converter
• Ceramic substrate material for effective emissions control
• Four O2 sensor ports for accurate monitoring
• Inlet: 2 15/16" outside diameter flare with spin flange
• Outlet: 4 1/4" outside diameter flare with spin flange
• Overall length of 50 inches
• Compatible with Ford Transit-150, Transit-250, Transit-350, and Transit-350 HD

Detailed Product Description

The AP Exhaust catalytic converter 644108 features a ceramic substrate designed to reduce harmful emissions effectively while fitting directly into the exhaust system of select Ford Transit vans. Its federal EPA direct-fit design means it meets regulatory requirements without the need for modifications. The converter includes four O2 sensor ports, allowing for precise oxygen sensor placement to maintain engine performance and emissions control. The inlet and outlet connections use flared spin flanges—2 15/16" OD on the inlet and 4 1/4" OD on the outlet—ensuring a secure and leak-free fit. With an overall length of 50 inches, this converter integrates seamlessly into the exhaust system of the specified Transit models.

Common Applications and Issues Addressed

• Replacement for damaged or clogged catalytic converters on Ford Transit-150, Transit-250, Transit-350, and Transit-350 HD
• Restores proper emissions control to pass state and federal inspections
• Resolves check engine light issues related to catalytic converter or O2 sensor faults
• Improves exhaust flow and engine efficiency by replacing degraded converters
• Ensures compliance with EPA emissions standards for federal vehicles

Installation Notes and Tips

Installation of the AP Exhaust catalytic converter 644108 requires proper alignment of the inlet and outlet flared spin flanges to the existing exhaust piping. Ensure all O2 sensors are correctly installed in the four provided sensor ports to maintain accurate engine management system readings. No inlet or outlet gaskets are included, so verify gasket condition or replace as necessary during installation. Professional installation is recommended to ensure compliance with emissions regulations and proper exhaust system function.

Quality Assurance and Warranty

AP Exhaust catalytic converters are manufactured to meet federal EPA standards for direct-fit applications. The ceramic substrate material is engineered for durability and effective emissions reduction. While specific warranty details are not provided here, AP Exhaust products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.