AP Exhaust 771803 Catalytic Converter

CARB-Compliant Direct-Fit Catalytic Converter

AP Exhaust 771803 is a CARB compliant direct-fit catalytic converter built for specific California-emissions applications on the Ford Ranger and Mazda B2300. It is engineered with exact OE dimensions for proper fitment and uses a ceramic substrate with stainless steel body construction for durable exhaust service.

Fits 2011 Ford Ranger, N/A. Fits 2010 Ford Ranger, N/A. Fits 2009 Ford Ranger, N/A. Fits 2009 Mazda B2300, N/A. Fits 2008 Ford Ranger, N/A. Fits 2008 Mazda B2300, N/A. Fits 2007 Ford Ranger, N/A. Fits 2007 Mazda B2300, N/A.

Key Features

• Part number 771803
• CARB compliant direct-fit design
• Executive Order D-798-9 for California emissions compliance
• Stainless steel body material
• Ceramic substrate material
• 2 O2 sensor ports
• Inlet: 2 bolt loose flange with spherical flare
• Outlet: 2 bolt welded flange with gasket stub
• Outlet gasket and outlet hardware included
• Overall length: 48.75 in.

Product Details

The AP Exhaust 7FMXT02.31BA product line is built around OE-style fitment and controlled manufacturing for consistent dimensions and installation alignment. AP Emissions Technologies uses proprietary substrate chemistry and automated production methods to produce converters with efficient catalyst loading and repeatable fit, while keeping the design focused on emissions compliance and serviceability. This AP Exhaust catalytic converter is intended for direct replacement on California-spec Ford Ranger and Mazda B2300 applications listed above.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues This Part Addresses

• Failed emissions test due to a worn or inefficient catalytic converter
• Check engine light related to catalyst efficiency or exhaust flow faults
• Exhaust restriction caused by a deteriorated substrate
• Fitment problems from a non-direct replacement converter
• California emissions compliance concerns on listed Ranger and B2300 applications

Installation Notes and Tips

Verify the vehicle’s emissions label and EO requirements before installation. This converter uses a 2 bolt loose flange inlet with spherical flare and a 2 bolt welded flange outlet with gasket stub, so matching the existing exhaust configuration is important. The outlet gasket and outlet hardware are listed as included; inlet gasket and inlet hardware are not required or not supplied for this design. Confirm the presence of 2 O2 sensor ports and compare the overall length of 48.75 in. against the original unit before installation.

Quality Assurance

AP Exhaust Holdings, LLC identifies this converter under Executive Order D-798-9 for California compliance. The design is built to OE dimensions and fitment standards using stainless steel construction and a ceramic substrate for consistent replacement performance on the specified Ford Ranger and Mazda B2300 applications.