Overhaul Kit / Internal Parts Rebuild kit for 2.5 HP PD2 series Pumps. Includes : Slinger # 17351-0009, O-Ring # U9-228A, Shaft Seal # U109-6A, Impeller C105-214PGA, Impeller screw C30-51SS, Diffuser C1-274P, 2 x Diffuser screw # U30-542SS, O-Ring # U9-393