BX1850D SPEED CHANGE Parts group BX1850D D21700 RANGE GEAR SHIFT FORK D22000 PTO GEAR SHIFT FORK D22200 PTO GEAR SHIFT ARM D22500 DIFFERENTIAL LOCK SHIFT FORK F10801 SPEED CONTROL PEDAL F11000 RANGE GEAR SHIFT LEVER F11300 FRONT WHEEL DRIVE LEVER F12200 PTO SELECT LEVER F12500 PTO GEAR SHIFT LEVER sale parts diagram catalog online construction equipment excavator tractor