Sierra Marine Parts Catalog

738 I/O — MERCRUISER - Cooling System GENERATION II WATER PUMP ASSEMBLY MR ALPHAWATER PUMP ASSEMBLY Sequence Description Part No. O.E. # Qty. 1 Face Plate 18-3122 817276 1 2 Housing Assembly N.S.S. 817275A1 1 3 Gasket, Base 18-2564 27-43033-1 1 4 Gasket, Housing 18-2566 27-817277 1 5 Seal, Face 18-2599 26-816575A2 1 6 Screw, Housing N/A 10-816928 4 7 Impeller 18-3056 47-43026-2 1 8 Coupling Assembly 18-3151 47-43026T11 1 9 O-Ring 18-7420 25-21836 2 10 Sleeve 18-3222 23-816583 1 Sequence Description Part No. O.E. # Qty. 1 Guide Sleeve 18-3109 23-29804 1 2 Seal, Sleeve Guide 18-3110 26-38970 1 3 Ring, Upper 18-7158 25-30613 1 4 Ring, Dust 18-7426 25-30271 1 5 Nut, Housing N/A 11-13436 1 6 Washer, Housing 18-4270 12-36001 3 7 Screw, Housing N/A 10-96411 1 8 Housing, Water Pump 18-3116 46-96148A1 1 9 Cup, Impeller 18-3114 48752T 1 10 Impeller 18-3017 48752 1 11 Gasket, Impeller 18-2915 47-89984 1 12 Plate, Impeller 18-3117 27-85609-1 1 13 Gasket, Stainless Steel Plate 18-2914 27-85608-1 1 14 Water Pump Base Assembly 18-3420 46-44292A3 1 15 Oil Seal, Water Pump Base 18-2013 26-16977 1 16 Gasket, Water Pump Base 18-2919 27-42631-1 1 17 Oil Seal, Water Pump Base 18-2014 26-89238 1 18 O-Ring, Water Pump Base 18-7176 25-90011 1 19 Pin, Alignment N/A 17-42836 1 20 Nut, Housing N/A 11-13438 1 21 Washer, Housing 18-4275 12-29245 2 22 Key, Impeller N/A 28-56654 1