International Radiator - International Harvester IHC 3527216C91, Northern Radiator SCSI238575, Spectra Premium SPI20063505A, Reach Cooling 42-10579

Keep your International truck running cool with the Reach Cooling 42-10579, an aftermarket radiator built to directly replace International Harvester IHC 1A19009D and cross-reference Northern Radiator SCSI238575, Active Radiator Supply Company 6400-60, Spectra Premium 20063505, Serck FLX000764, and NAPA 20063505A. This copper-core, brass-tank, four-row downflow radiator is engineered to meet or exceed original equipment specifications, featuring reinforced B-type tubes with central support for improved pressure tolerance, deep extrusion headers that resist vibration and thermal expansion at the tube-to-header joint, folded fin edges for better heat disbursement, and thermal expansion cuts that extend core life through normal heat cycles. A plated transmission oil cooler is included. It fits a broad range of International medium-duty models, including the 3000, 3600, 3800, 3900FC, 4700, 4700LP, 4800, 4900, and 7100, covering model years 1994 through 2004 across multiple engine configurations. If you are sourcing by the OEM number 1A19009D or any of its known interchanges, this is the confirmed direct replacement that installs correctly and performs as the original was designed to.