Quicksilver 821354A2 Water Pump Repair Kit for Mercury or Mariner 25-50hp 2-Stroke and 4-Stroke OutboardsComplete water pump repair kit designed for Mercury and Mariner 25-50hp 2-stroke and 4-stroke outboards. This expansive kit includes the water pump impeller, drive key, face plate, gaskets, and water tube seal. Refer to your owner's or service manual for specific applications and replacement instructions.Features Fits Mercury and Mariner 25/30/40/45/50hp 2-stroke and 4-stroke outboards; Includes water pump impeller, drive key, face plate, gaskets, and water tube seal; One of the most complete kits available for outboard water pump repairs; See your owner's manual or service manual for exact application and installation; Designed to restore proper water pump function and engine cooling; Replaces GLM 12045; Pro Marine 3219, 3219-1; Sterndrive 96-265-03BK;