AP Exhaust 645897 Catalytic Converter

AP Exhaust 645897 Catalytic Converter

AP Exhaust 645897 is a Federal / EPA direct-fit catalytic converter built for exact OE dimensions and fitment. It uses a stainless steel body with a ceramic substrate and one O2 sensor port, making it a practical replacement for emissions service on select Ford Ranger and Mazda B2500 applications.

Key Features

• Federal / EPA direct-fit catalytic converter
• Stainless steel body for corrosion resistance
• Ceramic substrate material
• One O2 sensor port
• Overall length: 49 inches
• Inlet: 2-bolt loose flange with female flare or spherical flare
• Outlet: 2-bolt welded flange with gasket stub
• Outlet gasket and outlet hardware included by design

Product Details

AP Exhaust part number 645897 is engineered for direct replacement service on 1998-2001 Ford Ranger and 1998-2001 Mazda B2500 models listed below. The converter is built to OE dimensions for proper alignment, and the stainless steel construction supports long-term exhaust system durability. AP Exhaust uses advanced manufacturing methods to maintain consistent fitment and efficient converter construction across production.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Vehicle Fitment

• Fits 1998-2001 Ford Ranger, N/A; Direct Fit; (98-01 2.5L); Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
• Fits 1998-2001 Ford Ranger, N/A; Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
• Fits 1998-2001 Mazda B2500, N/A; Direct Fit; (98-01 2.5L Eng.); Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
• Fits 1998-2001 Mazda B2500, N/A; Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.

Installation Notes

Verify engine size, emissions certification, and flange style before installation. This converter uses a 2-bolt loose flange inlet and a 2-bolt welded flange outlet, so matching the existing exhaust connection points is important for proper sealing and alignment. Confirm O2 sensor placement and inspect adjoining exhaust components, gaskets, and hangers before installation.

Quality Assurance

AP Exhaust builds this converter to OE dimensions using automated workstations, spinner welding equipment, and high-speed production lines for consistent fitment and manufacturing control. The ARISTO substrate chemistry is used to support efficient converter loading and reliable emissions performance.