3721621-1VHZW Pump WW Viper4.0hp Century230v2-Spd56fr2-1/2

Although this pump kit has been discontinued by Horizon/Optimus the components that make up the pump kit are still available separately.

34-270-1220 - Wet End, WW Viper 4.0hp 2-1/2"mbt 56fr

35-126-1156W - Motor, Century/WW, 4.0hp, 230v, 2-Speed, 56 Y Frame