OTTO Excavator Engine Parts Npr75 4Hk1Tc Sensor Inlet Steam Temperature 8980653770 898065-3770 8-98065377-0 For Isuzu OTTO NPR75 excavator engine part: inlet air temperature sensor (Isuzu 4HK1TC engine), monitors intake temperature. Part nos: 8980653770, 898065-3770, 8-98065377-0