T721 T731 T9721 T9731 T9791 T991 T9951 T9971. Does your General Pump need rebuilt?. Part Number: 47219566 Screw, Plunger. (3) General Pump Kit 27. (1) General Pump Kit 6. (1) General Pump Kit 1. (3) General Pump Kit 27 (1) General Pump Kit 6 (1) General Pump Kit 1.