SENSOR SEATBAR P/N 6691714Seat bar sensor is designed to keep the operator safe. Machine will not move until the seat bar is down. Compatible with the following Bobcat machines: Loaders: 751, 753, 763, 773 , 863, 864, 873, 883, 963, A220, A300, A770, S100, S130, S150, S160, S175, S185, S205, S220, S250, S300, S330, S450, S510, S530, S550, S570, S590, S595, S630, S650, S740, S750, S770, S850, T110, T140, T180, T190, T200, T250, T300, T320, T450, T550, T590, T595, T630, T650,