Koyorad A1831 Radiator

Koyorad A1831 Radiator Overview

The Koyorad A1831 radiator is an OE-equivalent replacement built for 1997-1999 Ford F-150 and 1997-1998 Ford F-250 applications. It combines an aluminum core with plastic tanks and includes an internal transmission oil cooler for direct-fit cooling system service.

Key Features

• Fits 1997-1999 Ford F-150 and 1997-1998 Ford F-250
• Aluminum core with plastic tank construction
• 2-row core design for cooling capacity
• Core dimensions: 31.875 in. height, 18.25 in. width, 2.25 in. thickness
• 1.75 in. inlet and 1.75 in. outlet diameters
• Internal transmission oil cooler included
• Transmission oil cooler diameter: 1.625 in.

Product Details

Koyorad Radiator A1831 is built as a direct replacement radiator for Ford truck cooling system repair. The OE-style aluminum core and plastic tank layout supports factory-style fitment, while the integrated transmission oil cooler helps maintain proper fluid temperature in vehicles equipped with automatic transmission cooling through the radiator. Koyorad uses technical manufacturing experience to produce replacement radiators that match the needs of the original application, making this part number A1831 a practical choice for Ford F-150 and Ford F-250 radiator replacement work.

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

Common Repair Uses

• Leaking radiator tanks or seams
• Restricted coolant flow from an aging core
• Overheating caused by reduced heat transfer
• Transmission cooler service needs in radiator-equipped systems
• Cracked or damaged OE radiator assemblies

Installation Notes

Verify core dimensions, inlet and outlet sizes, and transmission cooler connections before installation. Flush the cooling system, inspect hoses and clamps, and confirm proper coolant fill and bleed procedures after replacement. For best results, compare the original radiator to Koyorad A1831 before final mounting.

Quality Assurance

Koyorad manufactures OE-equivalent radiators with application-specific engineering and replacement-focused construction. The A1831 is built to meet the demands of the listed Ford truck fitments with the correct cooling layout and integrated transmission oil cooler.