Eastern Convertors 50548 Catalytic Converter - Rear

Direct-Fit Rear Catalytic Converter

Eastern Convertors 50548 is a direct-fit rear catalytic converter for the 2009-2011 Buick Lucerne. Built to OE dimensions for the undercar location, it uses a 2-bolt welded inlet and a 2.5" OD outlet for a straightforward replacement on the rear exhaust section.

The Eastern Convertors DIRECT FIT line focuses on exact-fit replacement parts for specific vehicle applications. For this Buick Lucerne catalytic converter, the design combines automated manufacturing, spinner welding, and high-speed production methods with a proprietary NANO substrate chemistry to support efficient converter loading and consistent fitment.

Key Features

• Part number 50548
• Fits 2009-2011 Buick Lucerne, rear undercar
• Federal / EPA direct-fit undercar catalytic converter
• 2-bolt welded inlet design
• 2.5" OD outlet
• 18.5-inch overall length
• No O2 sensor ports
• Includes 1 inlet gasket and 1 clamp

Detailed Description

This catalytic converter is engineered for the rear position on the 2009, 2010, and 2011 Buick Lucerne. The direct-fit layout helps match OE dimensions and mounting points, while the Federal / EPA configuration supports replacement of the original undercar converter on properly equipped vehicles. If you are searching for a 2009-2011 Buick Lucerne rear catalytic converter or Eastern Convertors 50548 for the rear exhaust section, this part is built for that exact application.

The DIRECT FIT product line is built around application-specific fitment and production consistency. Eastern Convertors uses automated workstations and welding equipment to maintain dimensional accuracy, and the NANO substrate chemistry is used to improve converter efficiency through optimized loading.

What It Is Used For

• Replacing a worn or damaged rear catalytic converter on a Buick Lucerne
• Restoring exhaust flow after converter restriction
• Addressing emissions-related fault conditions tied to converter performance
• Repairing exhaust leaks at the converter inlet connection
• Replacing a rusted or physically damaged undercar converter assembly

Installation Notes and Tips

Compatible With 2009-2011 Buick Lucerne, rear undercar. Verify Federal / EPA emissions configuration before installation; this part is not for sale or use in California, Colorado, Maine, or New York for vehicles with CA emissions. Confirm the 2-bolt welded inlet, 2.5" OD outlet, and 18.5-inch overall length match the original exhaust layout before assembly. Part number 50548 should be matched to the vehicle application during ordering and installation.

Quality Assurance

Eastern Convertors manufactures this converter using automated production processes, spinner welding, and OE-dimension fitment control to support consistent installation and performance. The DIRECT FIT line is built for application-specific replacement, and part number 50548 reflects that focused design approach.