AP Exhaust 735206 Catalytic Converter - Front Left or Front Right

CARB-Compliant Universal Catalytic Converter

AP Exhaust 735206 is a CARB compliant universal catalytic converter built for California emissions applications. It uses a ceramic substrate and stainless steel body construction to support efficient exhaust treatment while maintaining OE-style dimensions for fitment-focused replacement work.

Part of the AP Exhaust 3FMXT05.4RF9 product line, this converter is engineered with automated manufacturing, spinner welding, and high-speed production processes to help maintain consistent dimensions and installation fit. It is a direct choice for California-regulated Ford truck and SUV applications that require EO D-280-107 compliance.

• CARB compliant universal catalytic converter
• Ceramic substrate material for exhaust gas conversion
• Stainless steel body construction
• Round body shape with 4 in. height, 4 in. width, and 6 in. length
• 2.25 in. ID neck inlet and outlet
• 2 O2 sensor ports, opposed
• Overall length: 10 in.
• Executive Order D-280-107

Fitment Details

• Fits 2006 Ford E-150, front right; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2006 Ford E-150, front left; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2006 Ford E-250, front right; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2006 Ford E-250, front left; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2005 Ford E-150, front right; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2005 Ford E-150, front left; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2005 Ford E-150 Club Wagon, front left; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2005 Ford E-150 Club Wagon, front right; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2005 Ford E-250, front right; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2005 Ford E-250, front left; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2004 Ford E-150, front left; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2004 Ford E-150, front right; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2004 Ford E-150 Club Wagon, front left; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2004 Ford E-150 Club Wagon, front right; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2004 Ford E-250, front left; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2004 Ford E-250, front right; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2004 Ford Expedition, front left; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2004 Ford Expedition, front right; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2004 Ford F-150, front left; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2004 Ford F-150, front right; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2004 Ford F-150 Heritage, front left; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2004 Ford F-150 Heritage, front right; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2003 Ford E-150, front right; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2003 Ford E-150, front left; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2003 Ford E-150 Club Wagon, front right; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2003 Ford E-150 Club Wagon, front left; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2003 Ford E-250, front right; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2003 Ford E-250, front left; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2003 Ford E-350 Club Wagon, front left; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2003 Ford E-350 Club Wagon, front right; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2003 Ford Expedition, front right; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2003 Ford Expedition, front left; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2003 Ford F-150, front right; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2003 Ford F-150, front left; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2003 Lincoln Navigator, front left; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2003 Lincoln Navigator, front right; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2002 Ford F-150, front left; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.
• Fits 2002 Ford F-150, front right; Universal - California; 2.25 in./2.25 in.; 10 in. OAL.

Installation Notes and Tips

Verify the vehicle’s California emissions requirement, EO D-280-107, and confirm the inlet and outlet neck size before installation. This converter uses 2.25 in. ID neck connections and 2 opposed O2 sensor ports, so sensor routing and exhaust alignment should be checked against the existing system before welding or clamping.

For Ford E-150, E-250, Expedition, F-150, and Lincoln Navigator applications, match the front left or front right position exactly as listed. The 10 in. overall length and OE-dimensioned body size help support a cleaner replacement fit on the specified California applications.

Quality Assurance

AP Exhaust uses proprietary substrate chemistry and advanced manufacturing methods to build converters to exact OE dimensions and fitment targets. The 3FMXT05.4RF9 line is produced with automated workstations, spinner welding equipment, and high-speed production lines to support consistent construction and competitive pricing across California-compliant applications.

This part cross-references AirTek, Inc. (e.g., 6FMXT04.6RPE, 6FMXT04.6TPE) for the same application.