Spartan Motors Radiator - Northern Radiator 239120, Active Radiator Supply Company 3100-05, 1-800-Radiator 2400933, Reach Cooling 42-10443

When your 1988-1992 Spartan Motors Motorhome needs a new radiator, the Reach Cooling 42-10443 delivers an aftermarket solution built to meet or exceed original equipment specifications. This down-flow radiator features an aluminum core and plastic tanks, measuring 29.76 in. tall, 25.04 in. wide, and 2.2 in. thick, with a 2 in. top-left inlet and a 2 in. bottom-right outlet. A transmission oil cooler with 18.03 in. between fittings is included, making this a complete drop-in replacement. It directly cross-references Northern Radiator 239120, Active Radiator Supply Company 310005, 1-800-Radiator 2400933, Serck FLA001007, NAPA NR4210443, and Paccar Parts RAD42-10443TRP, so you can confirm the right fit before you order. Reach Cooling reinforces their tube-to-header joints with deep extrusion headers for vibration and leak resistance, folds fin edges for improved heat disbursement, and incorporates thermal expansion cuts to extend core life through normal heat cycles. Whether you're sourcing by cross-reference or by symptom, this radiator is engineered to fit and perform just like the original, giving fleet buyers, mechanics, and owner-operators the confidence of a correct, lasting repair.