Heater Core Only - - Models made in Japan - Models made in USA This is heater core only. For the complete air flow control box (including housing, air control flaps, air control flap linkage, and heater core) order 8-97231-602-0. - This is heater core only. For the complete air flow control box (including housing, air control flaps, air control flap linkage, and heater core) order 8-97231-602-0. - This is the complete air flow control box, including housing, air control flaps, air control flap linkage, and heater core. The heater core is also available separately as part #IS8102. -