Spectra 2001-3531 Radiator

Heavy Duty Radiator Overview

The Spectra 2001-3531 is a heavy duty radiator built for commercial cooling systems that need OE-level performance. It is a direct replacement radiator for select Ford and International medium-duty trucks, with fitment that includes transmission oil cooler provisions and OEM frame reuse.

Key Features

• Heavy duty radiator construction for demanding cooling applications
• Engineered to meet or exceed original equipment performance
• Includes transmission oil cooler provisions
• Designed for OEM frame reuse
• Fits select Ford F-650 and F-750 applications, plus International 3200, 3300, 4100, 4200, 4200LP, 4300, 4300LP, 4400, and 4900 models

Detailed Fitment and Design

Fits 2004-2007 Ford F-650, N/A; Fits 2004-2007 Ford F-750, N/A; Fits 2002-2007 International 3200, N/A; Fits 2005-2007 International 3300, N/A; Fits 2002-2007 International 4200, N/A; Fits 2003-2007 International 4200LP, N/A; Fits 2002-2007 International 4300, N/A; Fits 2002-2007 International 4300LP, N/A; Fits 2002-2005 International 4400, N/A; Fits 1997 International 4900, N/A. This radiator uses a 20-1/2 in. x 25-5/8 in. x 2-1/4 in. core, 2-1/4 in. inlet and outlet connections, and a transmission oil cooler layout with the specified port locations. The Spectra 2001-3531 is built for applications where the original frame is reused and mounting rubbers may be needed during installation. This part cross-references DENSO Auto Parts 5317 and Nissens 640012 for the same application.

Common Replacement Uses

• Overheating caused by a worn or inefficient radiator core
• Coolant leaks from an aging radiator assembly
• Transmission cooling concerns tied to radiator-integrated oil cooler circuits
• Fitment issues when replacing a damaged OE radiator assembly
• Restoring cooling performance in medium-duty truck service

Installation Notes and Tips

Verify core dimensions, inlet and outlet size, and oil cooler port locations before installation. The OEM frame must be reused, and the fitment notes indicate that provided mounting rubbers may be required. Confirm the cooling system is clean and inspect hoses, clamps, and related components before final assembly.

Quality Assurance

Spectra Premium uses engineering, manufacturing technology, and quality control processes intended to match or exceed the performance of the original equipment radiator it replaces. The 2001-3531 is part of that heavy duty radiator line and is built for consistent cooling performance in demanding service.