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Sierra Marine Parts Catalog: OMC Sterndrive Cobra

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NUT/SPACER/WASHER/COTTER PIN/PROP NUT KIT APPLICATION
Cotter
Cotter
Prop
Prop
Model
Year
Nut
Spacer
Washer
Pin
Model
Year
Nut
Spacer
Washer
Pin
Nut Kit
Nut Kit
120
1978-81
18-3705
18-4228
18-4222
18-3742
18-3716
460
1989-90
18-3708-1
18-4231
18-4223
18-3741
18-3715
140
1978-81
18-3705
18-4228
18-4222
18-3742
18-3716
502
1992
18-3708-1
18-4231
18-4223
18-3741
18-3715
1978-80
18-3708-1
18-4231
18-4223
18-3741
18-3715
1987-90
18-3705
18-4228
18-4222
18-3742
18-3716
185
2.3
200
1979-81
18-3708-1
18-4231
18-4223
18-3741
18-3715
2.5
1982-86
18-3705
18-4228
18-4222
18-3742
18-3716
225
1978
18-3708-1
18-4231
18-4223
18-3741
18-3715
3
1982-89
18-3705
18-4228
18-4222
18-3742
18-3716
230
1979
18-3708-1
18-4231
18-4223
18-3741
18-3715
3
1990-92
18-3708-1
18-4231
18-4223
18-3741
18-3715
240
1978
18-3708-1
18-4231
18-4223
18-3741
18-3715
3.8
1981-85
18-3708-1
18-4231
18-4223
18-3741
18-3715
1979-81
18-3708-1
18-4231
18-4223
18-3741
18-3715
1985-92
18-3708-1
18-4231
18-4223
18-3741
18-3715
260
4.3
262
1987-89
18-3708-1
18-4231
18-4223
18-3741
18-3715
5
1982-92
18-3708-1
18-4231
18-4223
18-3741
18-3715
350
1988-91
18-3708-1
18-4231
18-4223
18-3741
18-3715
5.7
1979-92
18-3708-1
18-4231
18-4223
18-3741
18-3715
351
1992
18-3708-1
18-4231
18-4223
18-3741
18-3715
5.8
1989-92
18-3708-1
18-4231
18-4223
18-3741
18-3715
454
1990-92
18-3708-1
18-4231
18-4223
18-3741
18-3715
7.5
1987
18-3708-1
18-4231
18-4223
18-3741
18-3715
-- CONTAINS --
Part #
Desc.
O.E. #
Qty.
18-7114
O-RING
302540
1
O-RING
908194
1
18-7400
18-2698
18-7952
OIL SEAL
911019
1
CLUTCH HOUSING SEAL KIT
18-2863
GASKET, COVER
308799
1
GASKET, OIL DRAIN
311598
1
18-4248
Fits: All models 1977 & below
18-0939
GASKET, DIPSTICK
315189
1
-- CONTAINS --
Part #
Desc.
O.E. #
Qty.
18-2060
OIL SEAL
321467
2
18-7114
O-RING
302540
1
18-7168
O-RING
202893
2
18-8360
18-7400
O-RING
908194
1
18-2863
GASKET, COVER
308799
1
CLUTCH HOUSING SEAL KIT
18-4248
GASKET, OIL DRAIN
311598
2
Fits: All models 1978 & above
18-0939
GASKET, DIPSTICK
315189
1
Clutch
Clutch
Clutch
Clutch
Pack
Pack
Pack
Pack
HP
Year
Seal Kit
HP
Year
Seal Kit
HP
Year
Seal Kit
HP
Year
Seal Kit
230
1980-1981
18-8360
80
1968-1969
18-2698
190
1974-1977
18-2698
140
1980-1981
18-8360
235
All
18-2698
90
All
18-2698
200
1966-1968
18-2698
3.0L
1982-1985
18-8360
240
1978
18-2698
100
1972-1973
18-2698
200
1979-1980
18-2698
155
1967-1972
18-2698
245
1972-1975
18-2698
120
1965-1978
18-2698
200
1980-1981
18-8360
165
1972-1976
18-2698
250
1979
18-2698
120
5.0L
1979-1980
18-2698
1982-1985
18-8360
3.8L
1981-1983
18-8360
260
1979-1980
18-2698
120
1980-1985
18-8360
210
1968-1970
18-2698
170
1974
18-2698
1980-1981
18-8360
260
2.5L
1982-1985
18-8360
215
1971
18-2698
175
1975-1977
18-2698
5.7L
1982-1985
18-8360
140
1973-1978
18-2698
225
All
18-2698
185
1967-1968
18-2698
140
230
1979-1980
18-2698
1979-1980
18-2698
185
1978
18-2698
1980 Models with the "C" suffix
1980 Models with "K" or "U" suffix
1980 Models with "C1" suffix
Zinc is for saltwater only applications.
Magnesium is for fresh water only applications.
Aluminum is for brackish water, or if boat is used in both fresh and salt environments.
18-6020
18-6024
18-6019
ANODE
18-6024A
ANODE
18-6025
Replaces: 976669
ANODE
Replaces: 982277, 982438
ANODE
Replaces: 393023, 436745
For Stringer Drive models with central
For intermediate housing on
Replaces: 433458, 398331
grounding point on boat hull
Stringer Drive models
(1982-87) For use on gearcases
801
Aluminum
Zinc