AP Exhaust 771374 Catalytic Converter - Front Left

Direct-Fit California Catalytic Converter

AP Exhaust 771374 is a CARB compliant direct-fit catalytic converter built for the front left position on select Honda Accord and Acura TL applications. It uses a stainless steel body, a ceramic substrate, and OE-style flange connections to support proper exhaust flow and emissions control.

AP Exhaust’s 3HNXV03.0FBP product line is engineered around exact OE dimensions and fitment, with manufacturing processes that help maintain consistent converter construction and installation alignment. This makes it a practical replacement for California emissions applications that require an Executive Order-approved part.

• CARB compliant direct-fit catalytic converter
• Executive Order D-798-9
• Stainless steel body with ceramic substrate
• 4-bolt welded inlet flange and 3-bolt welded outlet flange
• 2 O2 sensor ports
• Includes inlet gasket, outlet gasket, and outlet hardware
• Overall length: 13.75 in.

Fitment Details

• Fits 2008 Acura TL, front left; Direct Fit - California.
• Fits 2007 Acura TL, front left; Direct Fit - California.
• Fits 2006 Acura TL, front left; Direct Fit - California.
• Fits 2005 Acura TL, front left; Direct Fit - California.
• Fits 2004 Acura TL, front left; Direct Fit - California.
• Fits 2008 Honda Accord, front left; Direct Fit - California.
• Fits 2007 Honda Accord, front left; Direct Fit - California.
• Fits 2006 Honda Accord, front left; Direct Fit - California.
• Fits 2005 Honda Accord, front left; Direct Fit - California.
• Fits 2004 Honda Accord, front left; Direct Fit - California.
• Fits 2003 Honda Accord, front left; Direct Fit - California.

What This Converter Helps Address

• Failed emissions testing on California-equipped vehicles
• Check engine light concerns related to catalyst efficiency
• Restricted exhaust flow from a worn or damaged converter
• Exhaust leaks at the inlet or outlet flange area
• Replacement needs for a front left catalytic converter on Honda Accord or Acura TL

Installation Notes

Verify the Executive Order number, flange style, O2 sensor port count, and front left position before installation. This part cross-references AP Exhaust 3HNXV03.0FBP for the same application. Use the included inlet gasket, outlet gasket, and outlet hardware as required by the vehicle setup, and confirm sensor routing and exhaust alignment during installation.

Quality Assurance

AP Exhaust uses automated workstations, spinner welding equipment, and high-speed production lines to build converters to OE dimensions and fitment standards. The ARISTO substrate chemistry is used to support efficient catalyst loading and consistent converter performance for emissions-focused replacement applications.