Sherwood® 23979 minor water pump repair kit, suitable for the following pumps: G1, G2, G15, G20, G21-01, G22-01, G30-2, G30-2B, G95-1 G9901, G9902, G9903 H10, J70, K75, K75B This kit contains: Impeller 10615 Seal & Seat 12859 O-ring 12231 Retaining ring, external 4258 Retaining ring, internal 4259 Washer 4264 Key 4432 Impeller specifications: Diameter: 2-9/16" ~ 65.10mm Width: 1 5/8" ~ 41.20mm Shaft: 5/8" ~ 15.90mm Blades: 12 Keyway: 3/16" ~ 4.75mm Material: Neoprene