KIT,HIGH CAP DEF SENSOR/TANKSpecifications Item Description The JLG High Cap Def Sensor (Header) and Tank Replacement Kit is for various JLG High Capacity Machines (Supersedes part number 1001225677). The kit includes the DEF Header, a DEF tank, DEF hoses, a DEF tank extension harness, and installation instructions (If the prior DEF header sensor failed, the tank and header must be replaced). For use on JLG telehandler models: 1644 and 1732. Please verify the proper serial