276885C91 - INT/Navistar Heater Core 2503899C91 - International/Navistar Heater Core International/Navistar Heater Core International/Navistar Heater Core International/Navistar Heater Core International/Navistar Heater Core International/Navistar Heater Core International/Navistar Heater Core International/Navistar Heater Core 3599598C1 - Heater Core - International/Navistar International/Navistar Bus Heater Core International/Navistar Heater Core International/Navistar Heater Core 1696843-C1 - Navistar Heater Core 169995C1 - Heater Core - International/Navistar 2612565C1 - International/Navistar Heater Core