Eastern Convertors 40685 Catalytic Converter

Direct-Fit Catalytic Converter for Toyota 4Runner

Eastern Convertors DIRECT FIT catalytic converter Part Number 40685 is built for 1996-2000 Toyota 4Runner applications with Federal emissions. It is an undercar, direct-fit replacement engineered to match OE dimensions and fitment for a straightforward exhaust repair on the Toyota 4Runner.

The DIRECT FIT product line focuses on OE-style fitment and consistent manufacturing control. This converter uses advanced production methods, including automated workstations and spinner welding, along with a high-speed line process to help maintain dimensional accuracy and efficient output. The ECO II catalyst type and NANO substrate chemistry are used to support efficient converter loading at a lower cost point.

Key Features

• Direct-fit catalytic converter for undercar installation
• Fits 1996-2000 Toyota 4Runner, Federal emissions applications
• Eastern Convertors DIRECT FIT line for OE-style dimensions
• ECO II catalyst type
• 3-bolt welded inlet and 2-bolt welded outlet
• 1 O2 sensor port
• 36.5-inch overall length
• Built with NANO substrate chemistry for efficient loading

Detailed Description

Eastern Convertors Part Number 40685 is a Federal / EPA direct-fit undercar catalytic converter for the Toyota 4Runner. It is listed for 1996-1999 Toyota 4Runner and 2000 Toyota 4Runner, with undercar placement and OE-matched dimensions for a proper exhaust system replacement. The DIRECT FIT line is positioned around accurate fitment and production consistency, making it a practical choice when replacing a worn or restricted converter on the Toyota 4Runner.

This part cross-references no listed interchange numbers in the provided data. For search relevance, this Toyota 4Runner catalytic converter is commonly referenced by Part Number 40685 and Eastern Convertors 40685.

Common Problems This Part Can Address

• Failed emissions testing caused by a worn catalytic converter
• Check engine light conditions related to catalyst efficiency
• Restricted exhaust flow from a deteriorated converter core
• Exhaust leaks at the converter connection points
• Fitment issues when replacing a damaged undercar converter on a Toyota 4Runner

Installation Notes and Tips

Verify Federal emissions configuration before ordering. This converter is not for sale or use in California, Colorado, Maine, or New York for vehicles with California emissions. Confirm the vehicle’s undercar layout, inlet and outlet flange style, and O2 sensor port location before installation. Because this is a direct-fit unit, it is intended to align with OE-style mounting points on compatible Toyota 4Runner applications.

Quality Assurance

Eastern Convertors uses automated manufacturing processes, spinner welding equipment, and high-speed production lines to help maintain OE dimensions and consistent fitment. The ECO II catalyst design and NANO substrate chemistry are used to support efficient converter performance within the Federal / EPA direct-fit format.