Page 878 - 2021 Sierra Catalog

18-2180
DRIVE SHAFT Replaces: 45-42634
For all MR/ALPHA Units & older units which have been retro-fitted with MR/ALPHA lower units.
18-2331 DRIVE SHAFT
Replaces: 45-853648, 45-853647
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
18-2261 DRIVE SHAFT
Replaces: 45-816919
All Alpha I Generation II Drives (with new style 18-3056 Impeller) Serial #D494569 & above.
18-2346 RETAINER NUT
Replaces: 824519, 8245191, 11-42633, F694961, F694961-1 For: MR Alpha & Gen II
18-3719
PINION NUT
Replaces: 11-35921, 11-47411,
11-826375, 11-F694188
5/8” - 18 thread • 1 1/16” wrench
18-2359
DRIVE SHAFT NUT SET
— INCLUDES —
Sierra # Description Replaces:
18-3719 Pinion Nut 11-35921
18-2343 Pinion Nut Washer 12-92721
18-2286
Replaces: 66067, 66067T, 19755A2, 818349A1, 818349T1
18-2196
Replaces: 37967, 61073, 19755A4, 19755A08
SHIFT SPOOL ASSEMBLIES
SHIFT SPOOL ASSEMBLY APPLICATION
Model Serial # Part #
1A (EZ-Shift) 1776349 & UP 18-2196
1B (EZ-Shift) 1775193 & UP 18-2196
1C (EZ-Shift) 1777799 & UP 18-2196
120/140 2062141-3780849 18-2196
120/140 3780850 & UP 18-2286
160 2065190-2763441 18-2196
165 2763442-3780849 18-2196
165 3780850 & UP 18-2286
888 3106717-3784374 18-2196
888 3784375 & UP 18-2286
898/228 4782330 & UP 18-2286
225-S 3856268-4200499 18-2286
233 4200500 & UP 18-2286
470/485 4208730 & UP 18-2286
R/MR/Alpha One 6225377 & UP 18-2286
Alpha One (Gen II) D494569 & UP 18-2286
18-3759
THRUST BEARING RING Replaces: 35915
18-2342 THRUST RING
Replaces: 68100, 681001 For: MR/ ALPHA
18-2191
CARRIER BEARING
Replaces: 56211A1, 73020A1, 73020A14 For: #1R/MR/Alpha I
For: Housings with casting #73020C
860
I/O — MERCRUISER - Drive System