Sierra Marine Parts Catalog

913 I/O — OMC STERNDRIVE/COBRA - Upper Gear Housing Gearcase 50-75 HP 3 Cyl 1979-2003 Figure # Description Part # O.E.M. # Qty. Figure # Description Part # O.E.M. # Qty. 1 Upper Gear Housing, Basic w/ Inserts ~ 984518 1 2 Gearcase Insert NSS 910935 5 3 Gearcase Insert NSS 911779, 3852541 5 4 Gearcase Insert NSS 910901 5 5 Gearcase Insert NSS 911858, 3852567 3 6 Gearcase Insert NSS 910901 4 7 Gearcase Insert NSS 910901 4 8 Shift Rod Guide NSS 912137 1 9 Gasket, Water Passage Cover 18-0884 911733 1 10 Water Passage Cover 18-4837 911734 1 11 Thrust Plate, Starboard NSS 911838, 3852562 1 12 Shim, Thrust Plate, 0.015" 18-1713 911839, 3852563 AR 13 Thrust Plate, Port NSS 911837, 3852561 1 14 Retainer Ring, Thrust Plate NSS 910953 4 15 Nut 18-3730 912920, 3852648 6 16 Washer NSS 911833 6 17 Gasket, Outdrive Mounting 18-2918 911836, 915840 1 18 Gasket, Adapter to Gear Housing 18-0911 911698 1 19 O-Ring, Adapter, Large 18-7407 911700 1 20 O-Ring, Adapter, Small 18-7403 909316 1 21 Water Pump Shaft Seal 18-2068 911701, 915702, 916058, 3853655 1 22 Adapter, Water Pump to Gear Housing 18-4836 911699 1 23 Screw 18-1598 908668, 341013 6 24 Gasket, Plate to Adapter 18-2916 911702 1 25 Plate, Water Pump 18-3121 911703 1 26 Impeller 18-3058 983895, 777128 1 27 Liner, Water Pump Cover 18-3145 911844 1 28 Seal, Water Pump Housing 18-2541 911704 1 29 Impeller Housing 18-3206 984744 1 30 Screw NSS 912238 3 31 Shim, Bearing Carrier 0.010 18-0207 911668 AR 31 Shim, Bearing Carrier 0.001 18-0209 911669, 911670, 611671, 911672, 911673, 911674, 911675, 911676, 911677 AR 31 Shim, Bearing Carrier 0.003 18-0211 911669, 911670, 611671, 911672, 911673, 911674, 911675, 911676, 911677 AR 32 Pinion Nut 18-3769 911753 1 33 Nut Retainer 18-3610 911752 1 34 Pinion Washer NSS 911697 1 35 Pinion Bearing, Lower 18-1170 983892 1 36 Bearing Carrier, Pinion 18-4828 911750 1 37 Pinion Bearing, Upper 18-1161 983891 1 38 Gear Set, 21:16 (includes 38 & 45) 18-1600 983825 AR 38 Gear Set, 21:18 (includes 38 & 45) 18-1601 983826 AR 38 Gear Set, 21:19 (includes 38 & 45) 18-1602 984012 AR 39 Retainer Ring, Pinion Housing 18-3768 911751 1 40 O-Ring, Gear Housing Cover 18-7107 313175 1 41 Shim, Gear Position, 0.003" 18-02062 911662 AR 41 Shim, Gear Position, 0.005" 18-02063 911663 AR 41 Shim, Gear Position, 0.007" NSS 911664 AR 41 Shim, Gear Position, 0.010" 18-02065 911665 AR 41 Shim, Gear Position, 0.012" 18-02066 911666 AR 41 Shim, Gear Position, 0.015" 18-02067 911667 AR 42 Bearing, U-Joint Shaft 18-1171 983878 1 43 Nut, Gear to U-Joint 18-3770 911937 1 44 Centering Cone 18-4835 912029 1 45 Gear Set, 21:16 (includes 38 & 45) 18-1600 983825 AR 45 Gear Set, 21:18 (includes 38 & 45) 18-1601 983826 AR 45 Gear Set, 21:19 (includes 38 & 45) 18-1602 984012 AR 46 Bearing, Bearing Carrier 18-1172 983877 1 47 O-Ring, Bearing Carrier 18-7169 911686 1 48 Shim, Bearing Carrier, 0.003", Green 18-0227 911678 AR 48 Shim, Bearing Carrier, 0.004", Tan 18-0229 911679 AR 48 Shim, Bearing Carrier, 0.005", Blue 18-02060 911680 AR 48 Shim, Bearing Carrier, 0.010", Brown 18-02061 911681 AR 49 Gear Bearing Carrier 18-4838 911683 1 50 Seal, Bearing Carrier 18-2067 911685 1 51 U-Joint & Water Pump Shaft Assy 18-2338 983880 1 52 Stub & Water Pump Shaft 18-6399 984264 1 53 U-Joint Assy 18-2104 912214 2 54 Yoke Shaft 18-2146 912212 1 55 O-Ring, U-Joint Shaft 18-7153 911851, 3852565 2 56 Gear Housing Cover 18-4838 911845, 986363 1 57 Oil Indicator 18-8369 914488 1 58 O-Ring, Oil Indicator 18-7116 303067 1 59 Screw, Gear Housing Cover 18-1599 123018 4 60 Cover, Water Pump Access 18-4750 983967 1 61 Screw, Water Pump Access Cover 18-4749-9 911859, 3852568 3 Water Pump Repair Kit w/housing 18-3348 984461, 984744 1 AR As required NSS Not Sold Seperate