18-11847, 250382, 2649, 2754449, 279183, 398273, 554765, 702649, 709160, 8231620, 9010240, 94765, 98765, GM8273, H5120, HT 8335C, HT398273, ZH382. HVAC Heater Core. Heater Core. Four Seasons. Our products are engineered and tested to provide years of trouble free operation.
