Walker 55993 Catalytic Converter - Left

Walker EPA Direct-Fit Catalytic Converter

Walker EPA 55993 is a direct-fit catalytic converter built for specific applications and engineered to meet EPA standards. It is designed for 2007-2009 Toyota Tundra left-side fitment and uses a round, premium-grade body with dual converter bodies for OE-style exhaust replacement.

Walker Ultra Direct-Fit Catalytic Converters are part of the EPA line for import and domestic OBDII vehicles, offering a vehicle-specific solution for emissions system repair on the Toyota Tundra. Part number 55993 is built around the original exhaust layout for a cleaner, more precise replacement.

Key Features

• Fits 2007-2009 Toyota Tundra, left
• Walker part number 55993
• Specific-fit catalytic converter for direct replacement
• Premium-grade round body construction
• 3-bolt welded flange inlet and 2-bolt welded flange outlet
• Includes inlet and outlet gaskets
• Two O2 sensor ports for emissions system integration
• Overall length: 49.000 inches

Detailed Description

Walker 55993 is a direct-fit catalytic converter for the left side of 2007-2009 Toyota Tundra models. It is built with a round body shape, a 3-bolt welded flange inlet, and a 2-bolt welded flange outlet to match the original exhaust connection style. The unit includes inlet and outlet gaskets and provides two sensor ports for oxygen sensor placement. As part of the Walker EPA Ultra Direct-Fit line, this converter is intended for OBDII vehicles and focuses on emissions-system replacement with application-specific fitment.

This part cross-references AP Exhaust 643074 and NGK 49625 for the same application.

Common Repair Uses

• Replacing a failed or restricted catalytic converter on a 2007-2009 Toyota Tundra, left
• Addressing emissions-related diagnostic trouble codes tied to catalyst efficiency
• Restoring exhaust flow after converter substrate damage or contamination
• Repairing exhaust leaks at the inlet or outlet flange connection points
• Replacing a converter that no longer meets EPA emissions requirements

Installation Notes and Tips

Verify left-side placement and confirm the vehicle is a 2007-2009 Toyota Tundra before installation. Check flange alignment, sensor port location, and gasket surfaces against the original exhaust assembly. Because mounting hardware is not listed as included, reuse or source any required fasteners separately as needed for the application.

Quality Assurance

Walker’s EPA Ultra Direct-Fit Catalytic Converter line is built for specific OBDII applications and designed around emissions compliance requirements for the listed vehicle fitment. Part number 55993 follows the direct-fit format to support accurate replacement on the Toyota Tundra exhaust system.