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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
2.
18-1117
--
Sleeve ........................... 23-816573
34. Pinion Gear ...............43-828072A2
3.
18-2206➄
Coupling .........................816597A1
18-3151
35. Washer ............................ 12-92721
4.
18-2343
O-Rings ........................... 25-21836
18-7420
36. Nut................................... 11-35921
5.
18-3719
Face Seal ..................26-816575A2
18-2599
37. Shift Crank............................ 76865
5A. Screw, 10-32 X 5/8 ........ 10-806290
18-2130
NSS
38. Shift Spool Assembly......818349A1
5B. Star Washer..................... 13-69432
18-2286
NSS
38A. Cotter Pin & Sleeve .................NSS
6.
--➀
Water Pump Body ..........817275A1
18-3147➃
39. Retainer...................................NSS
7.
--➀
Impeller.........................47-43026-2
18-3056
40. Washers ..................................NSS
8.
--➀
Gasket ........................... 27-817277
18-2563
41. Spring ......................................NSS
9.
--➀
Face Plate .......................... 817276
18-3122
42. Shift Spool ...............................NSS
10. Gasket ..........................27-43033-1
--➀
18-2564
43. Clutch Shaft.............................NSS
11. Seal Carrier ....................821759A2
--➀
18-2354
44. Shim(s) ........................15-47397A1
12. O-Rings ........................... 25-90011
18-2285
18-7176
45 &
13. Seal ................................ 26-16977
18-2013➆
46. Set, Cone & Race........31-35928A1
18-1159
14. Seal ................................. 26-89238
18-2014➆
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 ..............
48. Forward Gear ............43-828072A2
18-2206➄
(1.50-1.65 Ratio) .......31-36387A1
18-1143
49. Cross Pin Spring ............. 24-30893
18-2348
16. &
50. Cross Pin......................... 17-30632
17. Bearing, Upper Driveshaft
18-2357
51. Sliding Clutch ................ 52-824112
18-2202
(1:47-1:62 Ratio) .......31-33138A1
18-1193
52. Propeller Shaft............... 44-824110
18. Shim(s) ........................15-42637A1
18-2166
18-2294
53. Reverse Gear ............43-828072A2
19. Drive Shaft
18-2206➄
54. Thrust Ring......................... 681001
18-2342
(1:47-1:62 Ratio) ......... 45-853648
18-2331
55. Ball Bearing .................30-88957A1
19. Drive Shaft
18-1155
(1.50-1.65 Ratio) ......... 45-816919
18-2261
56. O-Ring ............................. 25-31534
18-7159
19. Drive Shaft
57. Roller Bearing.................. 31-30956
18-1158
(1.84-1.98 Ratio) ......... 45-816472
--➁
20. Impeller Drive Key ........... 28-43037
18-3293
58. Bearing Carrier .............818763A10
18-2376➅
21. Shift Shaft.......................815919A1
18-2320
59. Seal ................................. 26-14077
18-2002
22. Speedometer Pickup Fitting➂ ...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)
Pieces not sold separately, must be purchased as
➅
Includes inner bearing & seals
➀
18-2286. Kit consists of figure numbers 38a- 43
18-2013 and 18-2014 for S/N OD469859-OF679999
➆
➁
Must use 18-1143
only. Use 18-2056 for both seals on
Comes with #25
S/N OF680000-OM400411.
➂
➃
Housing kit # 18-3147 only= 817275T4
NSS Not Sold Separately
Gears sold as set only
➄
For Water Pump Kit use 18-3147 Mercruiser # 817275T4
703