Sierra Marine Parts Catalog: Carrier Bearings, Drive Shafts, Shift Spool Assemblies
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DRIVE SHAFT
Replaces: 45-41939A1
For all #1 units S/N 2791957 & above except MR/ALPHA Units or units which have been
retro-ftted with MR/ALPHA lower units. Also For 165 (6 cyl.) S/N 2763442 & above.
DRIVE SHAFT
Replaces: 45-42634
For all MR/ALPHA Units & older units which have been
retro-ftted with MR/ALPHA lower units.
RETAINER NUT
Replaces: 824519
For: MR Alpha & Gen II
PINION NUT
Replaces: 11-35921
SHIFT SPOOL ASSEMBLY APPLICATION
SHIFT SPOOL ASSEMBLIES
Replaces: 19755A2
Replaces: 19755A4
Model
Serial #
Part #
1A (EZ-Shift)
1776349 & UP
1B (EZ-Shift)
1775193 & UP
1C (EZ-Shift)
1777799 & UP
120/140
2062141-3780849
120/140
3780850 & UP
160
2065190-2763441
165
2763442-3780849
165
3780850 & UP
888
3106717-3784374
888
3784375 & UP
898/228
4782330 & UP
225-S
3856268-4200499
233
4200500 & UP
470/485
4208730 & UP
R/MR/Alpha One
6225377 & UP
Alpha One (Gen II)
D494569 & UP
DRIVE SHAFT
Replaces: 45-816919
All Alpha I Generation II Drives (with new style 18-3056 Impeller)
Serial #D494569 & above.
DRIVE SHAFT NUT SET
Replaces: 12-92721 & 11-35921
Contains:
18-3719 Pinion Nut
18-2343 Pinion Nut Washer
DRIVE SHAFT
Replaces: 45-853648
For: Ratios 1.47, 1.62, 1.81 & 1.94.
Fits: Gen II (1998 & up), (0L100040 & up)
For use with: 18-2400 Complete Lower Gear Case
CARRIER BEARING
Replaces: 73020A14
For: #1R/MR/Alpha I
For: Housings with casting #73020C
THRUST BEARING RING
Replaces: 35915
THRUST RING
Replaces: 681001
For: MR/ ALPHA
I/O—MERCRUISER-DriveSystem