Walker 14644 Catalytic Converter - Front

Walker EPA Direct-Fit Catalytic Converter

Walker EPA Part Number 14644 is a premium direct-fit catalytic converter built for OBDII vehicles and engineered to meet EPA standards. It is a front-position replacement for select 2004-2006 Ford Ranger and 2004-2006 Mazda B4000 applications.

The Walker Ultra Direct-Fit Catalytic Converter line is designed for import and domestic 1996-and-newer OBDII vehicles, with a focus on direct replacement fitment and emissions compliance. Part Number 14644 follows that approach with a Federal / EPA direct-fit undercar design, ECO III catalyst construction, and four O2 sensor ports for the listed applications.

Key Features

• Premium grade catalytic converter for emissions-system replacement
• Federal / EPA direct-fit undercar design
• ECO III catalyst type
• Overall length: 30.750 inches
• 4 O2 sensor ports
• 2-bolt spinner inlet design
• 3-bolt welded outlet design
• Front-position fitment for select Ford Ranger and Mazda B4000 models

Vehicle Fitment

• Fits 2004-2006 Ford Ranger, front.
• Fits 2004-2006 Mazda B4000, front.

What It Helps Address

• Failed catalytic converter emissions testing
• Check engine light concerns related to catalyst efficiency
• Restricted exhaust flow caused by a worn or damaged converter
• Replacement needs after internal substrate deterioration
• Direct-fit service for front exhaust system repair on Ranger and B4000 applications

Installation Notes and Tips

Confirm the vehicle is a 2004-2006 Ford Ranger or 2004-2006 Mazda B4000 with front-position application before ordering. Verify the inlet and outlet flange styles, O2 sensor port count, and overall length against the original converter to ensure proper exhaust alignment. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Quality Assurance

Walker Ultra Direct-Fit Catalytic Converters are built for EPA-compliant replacement use on listed OBDII vehicles, with a premium direct-fit design intended to support proper emissions-system service and consistent installation on the specified Ford Ranger and Mazda B4000 applications.