International Radiator - Northern Radiator 238705, Active Radiator Supply Company 640115, 1-800-Radiator 2401221, Reach Cooling 42-10530

When your International LoneStar needs a new radiator, the Reach Cooling 42-10530 is the aftermarket replacement built to get the job done right. This unit cross-references Northern Radiator 238705, Active Radiator Supply Company 640115, 1-800-Radiator 2401221, Serck FLA002298, NAPA NR4210530, and Paccar Parts RAD42-10530TRP, making it straightforward to confirm you have the correct part before it ships. Designed for International LoneStar applications from 2008 through 2017 across 10.8L, 12.4L, 14.9L, and 15.2L engines, this radiator meets or exceeds original equipment specifications so it fits and performs as well as what came off the truck. The aluminum core uses B-type tubes with central reinforcement to handle pressure spikes that cause tube failure, and deep extrusion headers create a stronger tube-to-header joint that resists vibration and thermal cycling. Folded fin edges improve stability and heat disbursement, while thermal expansion cuts allow the core to breathe through normal heat cycles, reducing long-term failure rates. A transmission oil cooler is included, with fittings spaced 305 mm apart. The down-flow design matches the original configuration, and multi-fit attachments accommodate multiple LoneStar variants without compromising OE fit. Choose Reach Cooling 42-10530 for a direct, no-compromise replacement that installs correctly and keeps your International LoneStar running cool mile after mile.