Walker 70401 Catalytic Converter - Right

Walker EPA Direct-Fit Catalytic Converter

Walker EPA Ultra Direct-Fit Catalytic Converter 70401 is built for specific applications and engineered to meet EPA standards for OBDII vehicles. It uses a stainless steel body with a ceramic substrate and direct-fit flange connections for a precise exhaust replacement on select Ford Ranger and Mazda B4000 models.

Key Features

• Direct-fit catalytic converter for specific vehicle applications
• EPA-compliant design for 1996 and newer OBDII vehicles
• Stainless steel body with standard oval housing
• Ceramic substrate material
• 2.5-inch inlet diameter and 2.25-inch outlet diameter
• Pre-catalyst and midbed oxygen sensor locations
• Fits right-side exhaust placement on listed applications
• Walker part number 70401

Detailed Product Overview

Walker EPA 70401 is a direct-fit catalytic converter designed for select 2007-2011 Ford Ranger right-side applications and 2007-2009 Mazda B4000 right-side applications. The unit features a 2-bolt welded flange inlet, a 2-bolt loose flange with spherical flare inlet, and a 2-bolt welded flange outlet for application-specific exhaust alignment. Its stainless steel construction and ceramic substrate are selected for durability and emissions-system service on EPA Federal Emission equipped vehicles. This part cross-references Davico Mfg 19388 for the same application.

What This Part Helps Address

• Failed or restricted catalytic converter performance
• Exhaust flow issues caused by a damaged converter body
• Emission-system fault conditions related to converter efficiency
• Exhaust leaks at flange-connected converter locations
• Replacement needs on right-side Ford Ranger and Mazda B4000 exhaust systems

Installation Notes and Fitment

Fits 2007-2011 Ford Ranger, right. Fits 2008-2009 Mazda B4000, right. Fits 2007 Mazda B4000, right. Exhaust gasket is recommended, and additional parts are needed to complete installation: 31534 and 31372. Verify federal-emissions configuration before installation, since this converter is not legal for sale or use in California and other CARB-compliant states. Walker 70401 is a specific-fit replacement for the listed applications and should be matched to the vehicle’s emission setup and exhaust layout before service.

Quality Assurance

Walker EPA Ultra Direct-Fit Catalytic Converters are designed to comply with EPA standards while delivering consistent replacement performance for approved applications. The Walker EPA line focuses on direct-fit emissions components for import and domestic OBDII vehicles, including the Ford Ranger and Mazda B4000 fitments listed for this part.