Sierra 18-3217 Water Pump Repair Kit for MerCruiser, MercuryFor #1 Units thru S/N D494568 (Similar to #46-96148A5 without base or housing) Used on MerCruiser Stern Drives and Mercury Outboards. This kit contains all the components needed to properly repair your water pump, Impeller, ware plates, gaskets, water tube and O-rings.Also fits Mercury/Mariner 65 HP (4 cylinder) through V-6 outboards with short vane impellersDoes not include housing. Use 18-3316 if housing is needed.Applications: All Alpha pre 1992; #1 Drives; R & MR Drives; Large Gearcase Mercury & Mariner Outboards; Kit Contains: (1) 18-2801 Water pump gasket; (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) 18-3017 Impeller; (1) 18-3109 Water tube gasket; (1)18-3110 Water pump housing bushing; (1) 18-3117 Impeller plate; (1) 18-7158 O-ring; (1) 18-7162 O-ring; (1) 18-7173 O-ring; (1) 18-7176 O-ring; (1) 18-7426 O-ring; Interchangeable with: EMP; 46-00091; GLM; 12290; Mallory; 9-48304; Mercruiser Stern Drive; 46-96148A8; Mercury Marine; 46-32437A1; 46-32437A3; 46-37433A1; 46-42579A4; 46-44292A4; 46-44579A4; 46-48747A3; 46-57234A3; 46-58618A4; 46-60367A1; 46-60367A4; 46-64141A11; 46-69222A3; 46-73803A3; 46-73804A3; 46-78400A2; 46-9614888; 46-96148A5; 46-96148A8;