BMW e36 3xx e39 528 Heater Core OEM new BEHR hvac heating hot water radiator Heater Core. NOTE: Only for cars with plastic water box core. Brand NEW part with full 1 year warranty. BMW part# 64 11 1 393 212, note the mid-year splits. Recently made by BEHR (OEM), not been lying around. Please NOTE the mid-year split on PRODUCTION date. Not sure about your car? email us your VIN to confirm.