Eastern Convertors 40657 Catalytic Converter with Integrated Exhaust Manifold - Front Right

Direct-Fit Catalytic Converter Manifold

Eastern Convertors DIRECT FIT Part Number 40657 is a Federal / EPA direct-fit catalytic converter with integrated exhaust manifold for specific front right firewall-side applications. It is built to OE dimensions for accurate fitment and uses advanced manufacturing methods to support consistent assembly and converter efficiency.

The ECO II catalyst type and NANO substrate chemistry are engineered for efficient exhaust treatment in the listed Honda, Acura, and Saturn applications. This unit is a direct-fit replacement for the front right position on vehicles such as the Honda Odyssey, Acura MDX, and Honda Pilot.

Key Features

• Part number 40657
• DIRECT FIT product line for OE-style installation
• Federal / EPA direct-fit manifold design
• Integrated exhaust manifold and catalytic converter construction
• ECO II catalyst type
• NANO substrate chemistry for efficient loading and converter performance
• 4-bolt welded inlet type
• 2 O2 sensor ports
• Outlet gasket quantity: 1
• Outlet hardware: Yes
• Overall length: 13.75 in.

Fitment Details

• Fits 2005-2010 Honda Odyssey, front right firewall side.
• Fits 2003-2009 Acura MDX, front right firewall side.
• Fits 2005-2008 Acura RL, front right firewall side.
• Fits 2004-2008 Acura TL, front right firewall side.
• Fits 2005-2008 Honda Pilot, front right firewall side.
• Fits 2006-2008 Honda Ridgeline, front right firewall side.
• Fits 2003-2007 Honda Accord, front right firewall side.
• Fits 2004-2007 Saturn Vue, front right firewall side.

What This Part Helps Address

• Failed catalytic converter efficiency codes
• Exhaust leaks at the manifold-to-pipe connection
• Cracked or warped integrated manifold assemblies
• Restricted exhaust flow from a deteriorated converter
• Check engine light concerns related to emissions performance

Installation Notes

Verify the vehicle’s emissions certification before ordering. This Federal / EPA direct-fit manifold is not for sale or use in California, Colorado, Maine, or New York for vehicles with CA emissions. Confirm front right firewall-side placement, inlet style, and O2 sensor port count against the original part before installation. Part number 40657 is also referenced for the same application as Eastern Convertors 40657.

Quality Assurance

Eastern Convertors uses automated workstations, spinner welding equipment, and high-speed production lines to build converters to OE dimensions and fitment targets. The proprietary NANO substrate chemistry is used to support efficient catalyst loading and consistent converter performance.