Blower Motors
Filter Driers
Heater Cores
Part ID/Catalogs

International (Navistar)
Finding what you want is simple. ENTER THE PART NO. IN THE SEARCH BOX AND CLICK "GO" (example: 4480 or N83-304122). If you enter the brand name in conjunction with the number, you will get all items under that brand. You can also enter a manufacturer's number or interchange #'s, as they are also built into each unit's database. (IF YOU DO NOT KNOW THE PART NO., you can use the Part Identifiers in the navigation bar above.)

Heater Core International (Navistar) OEM# 2501238-C1
Heater Core International (Navistar) OEM# 3542604-C2
Heater Core Navistar Loadstar OEM# 437641C1
Heater Core Navistar OEM# 581702-C1
Heater Core Navistar OEM# 501099-C91
Heater Core International (Navistar) OEM# 474030-C2
Heater Core International (Navistar) OEM# 1696843-C1
Aux Heater Core NAVISTAR PROSTAR OEM# 3599598-C1
Heater Core NAVISTAR PROSTAR OEM# 2602575-C91