Sierra 18-2652 MerCruiser Lower Unit Seal KitSierra high quality aftermarket parts are manufactured to meet or exceed OEM requirements. Fits: #1 Drives through Alpha 1963 - 1989 S/N 164188 & Up; Interchangeable With: GLM; 87510; Mallory; 9-74304; MerCruiser Stern Drive; 26-33144A1; 26-33144A2; 26-89238A1; Kit Includes: (1) 18-2002 Oil Seal; (2) 18-2013 Oil Seal; (1) 18-2014 Oil Seal; (1) 18-2076 Oil Seal; (1) 18-2154 Shift Shaft Housing Bushing; (1) 18-2826 Water Pump Base Gasket; (1) 18-2914 Water Pump Gasket; (1) 18-2915 Water Pump Gasket; (1) 18-2919 Water Pump Gasket; (1) 18-2944 Seal Ring; (2) 18-2945 Drain Screw Gasket; (1) 18-2948 Rubber Washer; (1) 18-7158 O-Ring; (1) 18-7159 O-Ring; (1) 18-7162 O-Ring; (1) 18-7176 O-Ring; (1) 18-7426 O-Ring; (1) 18-2340 Shift Shaft Washer; (1) 18-7153 O-Ring; (1) 18-2009 Oil Seal;