1) Komatsu PC-7 excavator Revolution speed Sensor 2) made in China & good quality 3) P/N ... 4) very good price 1) Komatsu PC-7 excavator Revolution speed Sensor2) made in China & good quality3) P/N 7861-93 ... & fittings such as controller, Monitor, Throttle motor assembly, solenoid valve, hydraulic valve, sensors, switches, for numerous brands of excavators(Komatsu,caterpillar,Hitachi ...