MERCURY/MARINER
Internal Engine System
Con. Rod
Con. Rod
Center
Lower
Upper
HP
Cyl.
Beg. S/N
End. S/N
Crank End
Piston End
Main Bearing
Main Bearing
Main Bearing
25 (KF 9)
4
377150
495761
18-4035 (1)
--
18-4035
--
--
➃
10 (MK10)
2
1057994
1122327
18-4035 (1)
--
--
--
--
15 (MK1(5)
2
1200114
1287384
18-4035 (1)
--
--
--
--
16 (MK20)
2
ALL
18-4035 (1)
--
--
--
--
20 (MK2(5)
2
860979
& UP
18-4035 (1)
--
--
--
--
22 (MK28)
2
1158546
1238089
18-4035 (1)
--
--
--
--
30 (MK30)
4
ALL
18-4035 (1)
--
18-4035
--
--
➃
35 (MK3(5)
4
1217222
1271884
18-4035 (1)
--
18-4035
--
--
➃
25 (MK40)
4
711400
& UP
18-4035 (1)
--
18-4035
--
--
➃
40 (MK50)
4
ALL
18-4035 (1)
--
18-4035
--
--
➃
40(MK5(5)
4
831021
& UP
18-4035 (1)
--
18-4035
--
--
➃
45 (MK58)
4
1139538
& UP
18-4035 (1)
--
18-4035
--
--
➃
60 (MK7(5)
6
ALL
18-4035 (1)
--
18-4037
--
--
➃
70 (MK78)
6
1143038
& UP
18-4035 (1)
--
18-4037
--
--
➃
3.5 / 3.6 / 3.9
1
ALL
--
--
--
4
1
2498136
A809600
--
--
--
4
2
5589202
& UP
--
--
--
--
4.5
1
4107220
& UP
--
--
--
6
2
1916139
2529894
--
--
--
6
2
A197112
& UP
--
--
--
--
7.5
2
2529895
& UP
--
--
--
8
2
A197112
& UP
--
--
--
--
9.8
2
1865779
& UP
--
--
--
9.9
2
A197112
& UP
--
--
--
--
10
2
1290910
& UP
18-4035 (1)
--
--
--
--
15
2
1288910
1349697
18-4035 (1)
--
--
--
--
15
2
B292414
& UP
--
--
--
--
20
2
1292910
6443972
18-4035 (1)
--
--
25
2
1467499
1499331
18-4035 (1)
--
--
--
--
30
4
1271885
1448139
18-4035 (1)
--
18-4035
➃
30
2
G053314
& UP
18-4036
--
--
30 JET
4
C159200
& UP
18-4035
--
18-4037
30 JET
3
G590000
& UP
--
18-4036
--
--
35
4
121722
1448139
18-4035 (1)
--
18-4035
➃
35
2
6445653
B110788
18-4036 (3)
--
--
40
4
1279685
1476509
18-4035 (1)
--
18-4035
➃
40
2
2874704
& UP
18-4036 (3)
--
--
40
4
C159200
& UP
18-4035 (1)
--
18-4037
➃
40
2
G053314
& UP
18-4036
--
--
40
3
G531301
& UP
18-4036
--
--
45
4
1476510
1531568
18-4035 (1)
--
18-4035
(5)
45
4
5531630
& UP
18-4035 (1)
--
18-4037
➃
45 JET
D000750
G589999
18-4036
--
--
45 JET
3
G590000
& UP
18-4036
--
--
50
4
1421113
5193258
18-4035 (1)
--
18-4035
(5)
50
4
5193259
& UP
18-4035 (1)
--
18-4037
➃
50
3
6428681
D000749
18-4036 (3)
18-4037
--
--
➃
50
3
D000750
G589999
18-4036 (3)
--
--
50
3
G590000
& UP
18-4036 (3)
--
--
55
3
D000750
G589999
18-4036
--
--
55
3
G590000
& UP
18-4036
--
--
60
4
1303411
1542744
18-4035 (1)
--
18-4037
➃
60
3
6428681
D000749
18-4036 (3)
18-4037
--
--
➃
60
3
D000750
G589999
18-4036 (3)
--
--
60
3
G590000
& UP
18-4036 (3)
--
--
65
4
1545745
3293183
--
--
18-4037
--
➃
65
3
3293184
4571651
18-4036 (3)
18-4037
--
--
➃
65 JET
D283222
& UP
--
--
--
--
70
6
1296411
1566239
18-4035 (1)
--
18-4037
➃
70
3
4571652
6428680
18-4036 (3)
18-4037
--
--
➃
70
3
A996142
& UP
--
--
--
--
75
4
6432901
& UP
18-4036 (3)
18-4037
--
➃
75
3
C222000
& UP
--
--
--
--
80
6
1335465
1566239
--
--
18-4037
➃
80
4
2559001
6432900
18-4036 (3)
18-4037
--
➃
85
I-6
1460999
1766823
--
--
18-4037
--
➃
85
4
3493913
4831998
18-4036 (3)
18-4037
--
➃
90
I-6
1766824
1869775
--
--
18-4037
--
➃
90
I-6
4845301
& UP
18-4036 (3)
18-4037
--
➃
90
3
A996142
& UP
--
--
--
--
95
I-6
1869776
2318585
--
--
18-4037
--
➃
100
I-6
1464949
2836018
--
--
18-4037
--
➃
100
I-6
2641855
3253111
18-4036 (3)
18-4037
--
➃
100
4
B209468
& UP
--
--
--
--
105 JET
V-6
D820000
& UP
--
--
--
--
(1) 25 required per cylinder
➃ 56 required per main bearing
(2) 1 required per cylinder: crank end without cage
(5) 28 required per main bearing
(3) 29 required per cylinder
(6) Will not replace 31-17514A1 with needles
permanently mounted in cage
324
