Sherwood® 25122 major water pump repair kit, suitable for the following pumps: P1716, P1716B-01, P1716B-02, P1716-04, P1716A, P1716C, P1716X P1722, P1722B-01, P1722B-02, P1722-04, P1722A, P1722C, P1722X P1727, P1727FB-01, P1727FB-02, P1727-04, P1727A, P1727C, P1727X P1730, P1730-02, P1730-04, P1730F-01, P1730F-02, P1730F-04, P1730A, P1730C, P1730X P1731F-01, P1731F-02, P1731F-04 The upgraded shaft, along with the silicon carbide mechanical seal, will effectively convert your pump into a P17XXC spec. This kit contains:  Impeller 17000 Impeller puller O-ring 15945 Key 19667 Bearings and shaft assembly 25120 Snap ring 15952 Seal & seat with installation mandrel 25115 Lip seal 19674 Cam plate 18271 Wear plate 24162 Gasket 21570 Water pump cover 18742