Eastern Convertors 40988 Catalytic Converter - Right

Direct-Fit Catalytic Converter for Mercedes-Benz

Eastern Convertors DIRECT FIT catalytic converter Part Number 40988 is built for exact OE dimensions and fitment on select Mercedes-Benz applications. It uses ECO III catalyst technology and a Federal / EPA direct-fit undercar design to support proper exhaust flow and emissions control on the right-side undercar position.

The DIRECT FIT product line focuses on OE-style replacement geometry, using advanced manufacturing methods to maintain consistent dimensions and fitment. For buyers searching for a Mercedes-Benz GL450 catalytic converter right side or a Mercedes-Benz ML550 direct-fit undercar converter, this part number 40988 is built for the listed applications.

Key Features

• Eastern Convertors DIRECT FIT replacement for OE-style installation
• Part Number 40988
• ECO III catalyst type
• Federal / EPA direct-fit undercar configuration
• 2-bolt spinner inlet design
• 2.375 in. OD outlet
• Overall length: 52.5 in.
• Includes 2 O2 sensor ports
• Built to exact OE dimensions and fitment

Detailed Description

Eastern Convertors Part Number 40988 is a direct-fit catalytic converter for the right-side undercar position on select Mercedes-Benz GL450, GL550, and ML550 models. It is engineered with ECO III catalyst construction and proprietary NANO substrate chemistry to support efficient catalyst loading while keeping replacement cost controlled. The manufacturing process uses automated workstations, spinner welding equipment, and high-speed production lines to maintain consistent dimensions across the finished converter.

This Mercedes-Benz catalytic converter is listed for 2007-2012 GL450 right undercar, 2008-2012 GL550 right undercar, and 2008-2011 ML550 right undercar applications. Part Number 40988 is a direct-fit option for owners replacing a worn or restricted converter on the passenger-side exhaust path of these vehicles.

What This Part Helps Address

• Check engine light related to catalyst efficiency faults
• Restricted exhaust flow from a deteriorated converter
• Failed emissions inspection caused by converter performance issues
• Rattling or damaged internal catalyst substrate
• Exhaust odor or poor aftertreatment performance on the right-side undercar system

Installation Notes and Tips

Verify the right-side undercar location before ordering, since this converter is not universal. Confirm the vehicle’s emissions configuration and match the inlet style, outlet diameter, and O2 sensor port layout to the existing exhaust system. This part uses a 2-bolt spinner inlet and a 2.375 in. OD outlet, and the fitment notes specify Federal / EPA direct-fit undercar use.

Important fitment note: not for sale or use in California, Colorado, Maine, or New York for vehicles with California emissions. Fits 2007-2012 Mercedes-Benz GL450, right; 2008-2012 Mercedes-Benz GL550, right; and 2008-2011 Mercedes-Benz ML550, right.

Quality Assurance

Eastern Convertors uses advanced manufacturing processes to build converters to OE dimensions and fitment standards. The DIRECT FIT line is designed around consistent production control, and the ECO III catalyst formulation supports efficient converter performance for the listed Federal / EPA applications.