AP Exhaust 910053 Catalytic Converter - Front

Direct-Fit Catalytic Converter for Toyota 4Runner

AP Exhaust 910053 is a CARB-compliant direct-fit catalytic converter built for front-position applications on select Toyota 4Runner models. It uses a stainless steel body, a ceramic substrate, and OE-style flange connections to support proper fitment on California-emissions vehicles.

The XTYXT03.4GXS product line focuses on exact OE dimensions and consistent converter construction. AP Exhaust uses advanced manufacturing methods to keep fitment precise while maintaining efficient substrate loading for a practical replacement solution.

Key Features

• CARB compliant direct-fit catalytic converter
• Stainless steel body construction
• Ceramic substrate material
• 3-bolt welded flange with gasket stub inlet
• 2-bolt welded flange with gasket stub outlet
• Inlet gasket and outlet gasket included
• No O2 sensor ports
• Overall length: 20 inches
• Executive Order D-280-101

Detailed Description

AP Exhaust 910053 is engineered for front catalytic converter replacement on 1999-2002 Toyota 4Runner models listed for California emissions applications. It is built to OE dimensions for direct installation and uses stainless steel housing with a ceramic substrate to match the required emissions-control layout. The AP Exhaust XTYXT03.4GXS line is positioned for accurate fitment and consistent manufacturing quality across direct-fit converter applications.

This part cross-references AirTek, Inc. applications under Executive Order D-280-101 for the same vehicle coverage.

What It Helps Address

• Failed or inefficient front catalytic converter on a Toyota 4Runner
• Check engine light related to catalyst efficiency faults
• Emissions test failure tied to converter performance
• Corrosion or damage to the original converter housing
• Fitment issues from a non-OE-style replacement part

Installation Notes and Tips

Compatible With 1999 Toyota 4Runner, front; 2000 Toyota 4Runner, front; 2001 Toyota 4Runner, front; and 2002 Toyota 4Runner, front. Verify California-emissions application details and EO D-280-101 before installation. This converter uses welded flange connections with gasket stubs and does not include O2 sensor ports, so confirm the vehicle’s exhaust layout matches the part before beginning service.

Quality Assurance

AP Exhaust manufactures this converter with automated workstations, spinner welding equipment, and high-speed production lines to maintain OE-style dimensions and fitment consistency. The substrate chemistry and production process are used to support efficient converter performance and controlled manufacturing quality.