part # GLM # CLICK on  drawing to see photos of OMC parts 1 222-2 Rebuilt upper gearcase 2A 22520 Gear set (21:16) 2B 22544 Gear set (21:17) 2C 22560 Gear set (21:18) 2D 22540 Gear set (21:19) 3 21540 Bearing 4 21541 Bearing 5 28460 Pinion nut       7 81180 O-ring in seal kit 8 28315 Yoke drive shaft 9 28030 Universal joint 10 28100 Socket 11 28320 U-joint water pump shaft 12 86530 Oil seal in seal kit 13 82380 Oil seal in seal kit 14 21542  Bearing OMC parts 15 22525 Centering cone 16 28470 U-joint nut 17 21543 Bearing 18 34771 Gasket in seal kit 19 82430 O-ring in seal kit 20 81280 O-ring in seal kit 21 86610 Oil seal in seal kit 22 34770 Gasket in seal kit 23 12092 Wear plate is in this water pump kit 24 89950 Impeller 25 12391 Water pump liner in water pump kit 26 86630 Seal in seal kit & water pump kit  27 87654 Upper gearcase seal kit 28 33910 Gasket in seal kit 29 81100 O-ring in seal kit 30 12405 Pump housing in water pump kit 31 21676 Washer 32 23202 Retainer 33 21111 Cover nut 34 27800 Bearing carrier  35 27900 Water pump adapter 36 27920 Bearing carrier 37 82480 O-ring in seal kit 38 28404 Sterndrive cover assy. 39 28406 Cover assy 40 12661 Thrust plate port 41 12662 Thrust plate stbd 42 23360 Shim 43 28408 Cover assy 44 21773 Retainer ring 45 23361 Shim 0.003" 45 23362 Shim 0.004" 45 23363 Shim 0.005" 45 23364 Shim 0.010" 46 22384 Screw 47 47010 Vent hose 48 22385 Screw    22386 Screw  50 22387 Screw  51 21732 Dipstick 52 23371 Shim 0.003" 52 23372 Shim 0.005" 52 23374 Shim 0.010" 52 23376 Shim 0.015"         (New) OMC Cobra 21/17  gears ratio

OMC parts with photo drawing CLICK HERE OMC Cobra parts layout CLICK HERE CLICK HERE for OMC Cobra Gears ratio 21-18 22560 OMC Cobra Gears ratio 21-18 #22560 (21/18) ratio OEM #983826  $ 715.10 USD OMC parts layout upper gearcase Upper gearcase OMC parts layout