MERCURY/MARINER
O-Rings
LOWER UNIT O-RING APPLICATION (Cont.)
Beginning
Ending
Bearing
Water Pump
Shift
Drive
HP
Serial No.
Serial No.
Carrier
Base
Shaft
Shaft
7.5
5206550
UP
8
A197112
UP
-
-
-
9.8
1470349
3795657
9.8
3795658
5206549
-
9.8
5206550
UP
9.9/15
A197112
UP
-
-
-
18
5837437
6443972
-
-
-
20
1558310
1866494
20
1866495
6443972
25
5705532
6443972
-
-
-
18/20/25XD
6443973
UP
-
-
30
1271885
1356947
-
30
G055314
UP
-
-
-
MK 35A
1217222
1271884
-
35
1356948
1448139
-
35
1571114
1960826
-
35
1960827
2874703
-
35
6445653
UP
-
40
1279685
2874703
-
40
2874704
3336257
-
40
3336258
4117709
-
40
4117710
4860102
-
40
4860103
6445652
-
40 4cyl
C159200
G053313
-
40 2cyl
G055314
UP
-
-
-
45
1476510
1531568
-
45 4cyl
5531630
UP
-
50
1421113
1639472
-
50
1639473
1770178
-
50
1770179
2305100
-
50
2305101
2858813
-
50
2858814
4140999
-
50
4141000
4962055
-
50
4962056
5531630
-
50 3cyl
6428681
D000750
-
50/55/60 3 cyl
D000751
UP
-
-
-
60
1303411
1542744
-
-
-
60
6428681
D000750
-
65
1542745
2874263
65
2874263
3293183
65 3cyl
3293184
4136684
-
65 3cyl
4136685
4571651
-
70
1296411
1413610
-
-
70
1413611
1566239
70 3cyl
4571652
4977156
-
70 3cyl
4977157
5579016
-
70 3cyl
5579017
A996142
-
70/75 3cyl
A996142
UP
-
-
-
75 4cyl
6432901
A996142
-
80
1335465
1398629
80
1398630
1566239
80 4cyl
2559001
3144218
80 4cyl
3144219
4831998
-
80 4cyl
4831999
5582561
-
80 4cyl
5582562
A996142
-
80 3cyl
A996142
UP
-
-
-
85
1460999
1766823
85 4cyl
3493913
4590511
-
85 4cyl
4590512
4831998
-
90
1766824
1869775
90
4845301
5594656
-
90
5594657
A996142
-
➀ Requires 2
➁ Shift Shaft Retainer
➃ Fits most applications
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