Mack Radiator - Mack LT1070, 1-800-Radiator 2400290, Serck FLA000444, Reach Cooling 42-10398

When your Mack CT or CTP needs a new radiator, the Reach Cooling 42-10398 delivers a dependable aftermarket replacement built to meet or exceed original equipment specifications. This down-flow radiator features an aluminum core and PA66-GF30 tanks, with B-type tubes reinforced at the center for greater pressure tolerance and a drastically reduced risk of tube failure. Deep extrusion headers create a stronger tube-to-header joint that stands up to vibration and thermal expansion, while folded fin edges improve stability and heat disbursement. Thermal expansion cuts extend core life by allowing natural expansion and contraction through heat cycles, and longer header tabs add pressure resistance to prevent tank-to-header leaks. A transmission oil cooler is included. The 42-10398 is a direct cross-reference for Mack LT1070, 1-800-Radiator 2400290, Serck FLA000444, NAPA NR4210398, Keystone Auto Industries HDC010529PA, and OSC HD1066. It fits the 2005-2007 Mack CT 11.9L, the 2006-2008 Mack CTP 10.8L, and the 2007 Mack CTP 12.8L. If you are sourcing by OEM number or cross-referencing a failed unit, this radiator is the correct direct replacement for your Mack CT or CTP application.