Sherwood® 12221 major water pump repair kit, suitable for the following pumps: G65, F85. This kit contains: Impeller 09959 Gasket, cover Lip seal 10514C Bearings 23448 Impeller specifications: Diameter: 2-7/16" ~ 61.90mm Width: 1-1/4" ~ 31.80mm Shaft: 5/8" ~ 15.90mm Blades: 12 Keyway: 3/16" ~ 4.70mm Material: Neoprene This product replaces the following manufacturer's part nr: Sherwood Pumps order number: 12221, SHE12221 Westerbeke: 018172