Walker 54756 Catalytic Converter

Walker EPA 54756 Catalytic Converter

Walker EPA 54756 is a direct-fit catalytic converter built for OBDII-equipped vehicles from 1997-2005. It is engineered for EPA emissions requirements and uses a stainless steel body with a ceramic substrate for dependable exhaust flow and emissions control.

This Walker Ultra EX Direct-Fit Catalytic Converter is made for specific applications, including Pontiac Grand Am, Chevrolet Malibu, Oldsmobile Alero, Oldsmobile Cutlass, and Oldsmobile Achieva fitments. The 54756 part number is a practical replacement choice for drivers needing an EPA-compliant converter for federal-emissions vehicles.

Key Features

• Direct-fit design for specific vehicle applications
• EPA emissions-focused construction for OBDII vehicles
• Stainless steel body with round housing
• Ceramic substrate material
• Post-catalyst oxygen sensor location
• 2-bolt welded flange inlet and 3-bolt welded flange outlet
• Overall length: 38 inches
• Body dimensions: 13 inches long, 4.25 inches high, 4.25 inches wide

Product Details

Walker EPA 54756 is part of the Ultra EX Direct-Fit Catalytic Converter line, which is built for OBDII vehicles and focused on EPA emissions compliance. The design uses an air-gap pipe construction that helps insulate heat between pipes, and the converter is configured for specific fitment rather than universal installation. This makes it a straightforward replacement for the listed applications, including 1999-2005 Pontiac Grand Am, 1997-2003 Chevrolet Malibu, and 1999-2004 Oldsmobile Alero.

This part cross-references AP Exhaust 642547 and Eastern Catalytic 50335 for the same application.

What This Converter Helps Address

• Check engine light concerns related to catalyst efficiency
• Failed emissions testing on federal-emissions vehicles
• Restricted exhaust flow from a worn or damaged converter
• Exhaust leaks at the converter connection points
• Replacement needs for aging OBDII exhaust systems

Installation Notes

• Fits 1999-2005 Pontiac Grand Am, N/A
• Fits 1999-2004 Oldsmobile Alero, N/A
• Fits 1997-2003 Chevrolet Malibu, N/A
• Fits 1997-1999 Oldsmobile Cutlass, N/A
• Fits 1998 Oldsmobile Achieva, N/A

An exhaust gasket is recommended during installation. Verify federal-emissions application details before ordering, since this converter is not legal for sale or use in California or other CARB-compliant states. It is legal in New York and Maine on EPA federal-emissions equipped vehicles only.

Quality Assurance

Walker designs this EPA converter for premium performance and durability in sensitive OBDII applications. The stainless steel housing and direct-fit configuration support consistent replacement quality for the listed vehicle applications.