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MERCRUISER
Generation II
Lower Gearcase Assembly
Description
O.E. #
Part #
Description
O.E. #
Part #
--
--
32. Pin ............................... 17-37972-1
1.
Gear Housing .... 1623-815822A30
--
33. Pinion Bearing ........... 31-42647A1
18-1117
2.
Sleeve ........................... 23-816573
18-2206(5)
34. Pinion Gear ............. 43-828072A2
3.
Coupling ......................... 816597A1
18-3151
35. Washer ........................... 12-92721
18-2343
4.
O-Rings .......................... 25-21836
18-7420
36. Nut .................................. 11-35921
18-3719
5.
Face Seal ................ 26-816575A2
18-2599
37. Shift Crank .......................... 76865
18-2130
5A. Screw, 10-32 X 5/8 ...... 10-806290
NSS
38. Shift Spool Assembly .... 818349A1
18-2286
5B. Star Washer ................... 13-69432
NSS
--(1)
18-3147(4)
38A. Cotter Pin & Sleeve ................ NSS
6.
Water Pump Body ......... 817275A1
--(1)
39. Retainer .................................. NSS
7.
Impeller ....................... 47-43026-2
18-3056
--(1)
40. Washers ................................. NSS
8.
Gasket .......................... 27-817277
18-2563
--(1)
41. Spring ..................................... NSS
9.
Face Plate ......................... 817276
18-3122
--(1)
42. Shift Spool .............................. NSS
10. Gasket ........................ 27-43033-1
18-2564
--(1)
43. Clutch Shaft ............................ NSS
11. Seal Carrier ................... 821759A2
18-2354
44. Shim(s) ...................... 15-47397A1
18-2285
12. O-Rings .......................... 25-90011
18-7174
18-2013(7)
45 &
13. Seal ................................. 26-16977
46. Set, Cone & Race ..... 31-35928A1
18-1159
18-2014(7)
14. Seal ................................. 26-89238
47. Forward Gear,
15. Cover Nut .......................... 824519
18-2346
Inner Bearing ................ 31-30895
18-1157
16. &
47A. Retaining Clip, Inner Bearing
NSS
17. Bearing, Upper Driveshaft .............
18-2206(5)
48. Forward Gear ......... 43-828072A2
(1.50-1.65 Ratio) ..... 31-36387A1
18-1143
49. Cross Pin Spring ............ 24-30893
18-2348
16. &
50. Cross Pin ....................... 17-30632
18-2357
17. Bearing, Upper Driveshaft
51. Sliding Clutch ................ 52-824112
18-2202
(1:47-1:62 Ratio) ..... 31-33138A1
18-1193
52. Propeller Shaft .............. 44-824110
18-2166
18. Shim(s) ...................... 15-42637A1
18-2294
18-2206(5)
53. Reverse Gear ......... 43-828072A2
19. Drive Shaft
54. Thrust Ring ....................... 681001
18-2342
(1:47-1:62 Ratio) ........ 45-853648
18-2331
55. Ball Bearing ............... 30-88957A1
18-1155
19. Drive Shaft
(1.50-1.65 Ratio) ........ 45-816919
18-2261
56. O-Ring ............................ 25-31534
18-7159
19. Drive Shaft
-- (2)
57. Roller Bearing ................. 31-30956
18-1158
(1.84-1.98 Ratio) ........ 45-816472
20. Impeller Drive Key .......... 28-43037
18-3293
18-2376(6)
58. Bearing Carrier ............ 818763A10
21. Shift Shaft ...................... 815919A1
18-2320
59. Seal ................................. 26-14077
18-2002
22. Speedometer Pickup Fitting(3)NSS
--
60. Seal ................................. 26-12224
18-2076
23. Sleeve ............................. 23-67370
18-2349
61. Tab Washer ................... 14-18323
18-2298
24. Seal ................................. 26-89236
18-2009
62. Cover Nut ............................ 79448
18-3751
25. Shift Rod Bushing
63. Thrust Hub .......................... 13171
18-4220
Assembly ........... 23-815921A21
18-2353
64. Continuity Washer ...... 13-42351-1
NSS
26. O-Rings .......................... 25-36318
18-7440-1
65. Splined Washer ......... 12-31211A2
18-3714
27. Retaining Ring ................ 53-29641
18-4295
66. Tab Washer ................... 14-31210
18-3200
--
28. Dowel Pin ....................... 17-43044
67. Propeller Nut .................. 11-52707
18-3700
29. Seal ................................. 26-45577
18-2944
68. Carrier Anode ................ 806105A1
18-6093
30. Gasket ............................ 12-19183
18-2945
Seal Kit ..................... 26-816575A3
18-2646-1
31. Plug ............................ 22-67892A1
18-2375
(Not Pictured)
Includes inner bearing & seals
Pieces not sold separately, must be purchased as
(6)
(1)
18-2013 and 18-2014 for S/N OD469859-OF679999
18-2286. Kit consists of figure numbers 38a- 43
(7)
Must use 18-1143
only. Use 18-2056 for both seals on
(2)
S/N OF680000-OM400411.
Comes with #25
(3)
NSS Not Sold Separately
Housing kit # 18-3147 only= 817275T4
➃
Gears sold as set only
(5)
For Water Pump Kit use 18-3147 Mercruiser # 817275T4
683