Universal Air RA1790C Radiator

Universal Air Crossflow Radiator for GM Trucks

The Universal Air Crossflow Radiator, part number RA1790C, is a direct-fit cooling component for select Chevrolet C1500, Chevrolet C2500, Chevrolet K1500, GMC C1500, GMC C2500, and GMC K1500 applications. It is specified for vehicles with an engine oil cooler and the listed core-height and core-size configurations.

Key Features

• Crossflow radiator design for listed GM truck applications
• Fits 1996-2000 Chevrolet C1500, Chevrolet C2500, and Chevrolet K1500 configurations shown below
• Fits 1996-1999 GMC C1500, GMC C2500, and GMC K1500 configurations shown below
• Application-specific fitment for vehicles with an engine oil cooler
• Part number RA1790C for easy identification during replacement lookup

Detailed Description

Universal Air RA1790C is a crossflow radiator built for select GM full-size trucks that require the listed core dimensions and engine oil cooler setup. Fitment includes 1996-1998 Chevrolet C1500 with 28-1/4 core, 1996-1997 Chevrolet C2500 with 28-1/4 core, 1996-1997 Chevrolet K1500 with 28-1/4 core and radiator with 465 core height, 1997-1999 GMC C1500 with 28-1/4 core, 1997 GMC C2500 with 28 core, 1996-1999 GMC K1500 with 28-1/4 core, 1999 Chevrolet C1500 with 31 core and radiator with 465 core height, and 2000 Chevrolet C1500 with radiator with 465 core height. If you are replacing a radiator on a Chevrolet C1500, GMC K1500, or another listed GM truck, confirm the core size and oil cooler configuration before ordering. RA1790C is the part number to reference for this application.

What It Helps Address

• Overheating caused by a leaking or restricted radiator
• Coolant loss from cracked tanks or damaged core passages
• Reduced cooling performance in a high-mileage GM truck
• Replacement needs after corrosion or internal blockage
• Fitment matching for trucks with an engine oil cooler

Installation Notes and Tips

Verify the existing radiator core size, core height, and engine oil cooler configuration against the vehicle listing before installation. Compare the original unit to RA1790C to confirm hose locations, mounting points, and overall dimensions match your Chevrolet C1500, Chevrolet C2500, Chevrolet K1500, GMC C1500, GMC C2500, or GMC K1500 application. Flush the cooling system and inspect hoses, clamps, and the thermostat before returning the vehicle to service.