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Mercury Center Main Bearings
Refine Parts List
HP/Liter
(3.4 to 275)
HP/Liter
Cyl.
Beginning S/N
Ending S/N
Sierra Center Main Bearing
Mallory Center Main Bearing
Sierra Lower Main Bearing
Mallory Lower Main Bearing
Sierra Upper Main Bearing
Mallory Upper Main Bearing
3.5 hp
1
ALL
-
-
-
18-1398
-
18-1398
-
3.6 hp
1
ALL
-
-
-
18-1398
-
18-1398
-
3.9 hp
1
ALL
-
-
-
18-1398
-
18-1398
-
4 hp
1
2498136
A809600
-
-
18-1398
-
18-1398
-
4 hp
2
5589202
& UP
-
-
18-1398
-
-
-
4.5 hp
1
4107220
& UP
-
-
18-1398
-
18-1398
-
6 hp
2
1916139
2529894
-
-
18-1398
-
18-1398
-
6 hp
2
A197112
& UP
-
-
18-1397
9-75104
-
-
7.5 hp
2
2529895
& UP
-
-
18-1398
-
18-1398
-
8
2
A197112
& UP
-
-
18-1397
9-75104
-
-
9.8
2
1865779
& UP
-
-
18-1398
-
18-1398
-
9.9
2
A197112
& UP
-
-
18-1397
9-75104
-
-
15
2
B292414
& UP
-
-
18-1397
9-75104
-
-
20
2
1292910
6443972
-
-
18-1153
9-75113
18-1153
9-75113
25 (KF 9)
4
377150
495761
18-4035
out of stock
-
-
-
-
-
30 (MK30)
4
ALL
-
18-4035
out of stock
-
-
-
-
-
30
4
1271885
1448139
18-4035
out of stock
-
18-1154
9-51202
18-1154
9-51202
30
2
G053314
& UP
-
-
18-1154
9-51202
-
-
30 (jet)
4
C159200
& UP
18-4037
out of stock
-
18-1154
9-51202
18-1154
9-51202
30 (jet)
3
G590000
& UP
-
-
18-1154
9-51202
-
-
35
4
121722
1448139
18-4035
out of stock
-
18-1154
9-51202
18-1154
9-51202
35
2
6445653
B110788
-
-
18-1154
9-51202
-
-
35 (MK35)
4
1217222
1271884
18-4035
out of stock
-
-
-
-
-
25 (MK40)
4
711400
& UP
18-4035
out of stock
-
-
-
-
-
40 (MK50)
4
ALL
-
18-4035
out of stock
-
-
-
-
-
40 (MK55)
4
831021
& UP
18-4035
out of stock
-
-
-
-
-
40
4
1279685
1476509
18-4035
out of stock
-
18-1154
9-51202
18-1154
9-51202
40
2
2874704
& UP
-
-
18-1154
9-51202
-
-
40
4
C159200
& UP
18-4037
out of stock
-
18-1154
9-51202
18-1154
(1)
9-51202
40
2
G053314
& UP
-
-
18-1154
9-51202
-
-
40
3
G531301
& UP
-
-
18-1154
9-51202
-
-
45
4
1476510
1531568
18-4035
out of stock
-
18-1154
9-51202
18-1154
(1)
9-51202
45
4
5531630
& UP
18-4037
out of stock
-
18-1154
9-51202
18-1154
(1)
9-51202
45 (jet)
-
D000750
G589999
-
-
18-1154
9-51202
-
-
45 (jet)
3
G590000
& UP
-
-
18-1154
9-51202
-
-
45 (MK58)
4
1139538
& UP
18-4035
out of stock
-
-
-
-
-
50
4
1421113
5193258
18-4035
out of stock
-
18-1154
9-51202
18-1154
(1)
9-51202
50
4
5193259
& UP
18-4037
out of stock
-
18-1154
9-51202
18-1154
9-51202
50
3
6428681
D000749
18-4037
out of stock
-
-
-
-
-
50
3
D000750
G589999
-
-
18-1154
9-51202
-
-
50
3
G590000
& UP
-
-
18-1154
9-51202
-
-
55
3
D000750
G589999
-
-
18-1154
9-51202
-
-
55
3
G590000
& UP
-
-
18-1154
9-51202
-
-
60
4
1303411
1542744
18-4037
out of stock
-
18-1154
9-51202
18-1154
(1)
9-51202
60
3
6428681
D000749
18-4037
out of stock
-
-
-
-
-
60
3
D000750
G589999
-
-
18-1154
9-51202
-
-
60
3
G590000
& UP
-
-
18-1154
9-51202
-
-
65
4
1545745
3293183
18-4037
out of stock
-
18-1154
9-51202
-
-
65
3
3293184
4571651
18-4037
out of stock
-
-
-
-
-
60 (MK75)
6
ALL
-
18-4037
out of stock
-
-
-
-
-
65 (jet)
-
D283222
& UP
-
-
18-1346
9-51200
-
-
70 (MK78)
6
1143038
& UP
18-4037
out of stock
-
-
-
-
-
70
6
1296411
1566239
18-4037
out of stock
-
18-1154
9-51202
18-1154
(1)
9-51202
70
3
4571652
6428680
18-4037
out of stock
-
-
-
-
-
70
3
A996142
& UP
-
-
18-1346
9-51200
-
-
75
4
6432901
& UP
18-4037
out of stock
-
18-1154
9-51202
-
-
75
3
C222000
& UP
-
-
18-1346
9-51200
-
-
80
6
1335465
1566239
18-4037
out of stock
-
18-1154
9-51202
18-1154
(1)
9-51202
80
4
2559001
6432900
18-4037
out of stock
-
18-1154
9-51202
-
-
85
I-6
1460999
1766823
18-4037
out of stock
-
18-1154
9-51202
-
-
85
4
3493913
4831998
18-4037
out of stock
-
18-1154
9-51202
-
-
90
I-6
1766824
1869775
18-4037
out of stock
-
18-1154
9-51202
-
-
90
I-6
4845301
& UP
18-4037
out of stock
-
18-1154
9-51202
-
-
90
3
A996142
& UP
-
-
18-1346
9-51200
-
-
95
I-6
1869776
2318585
18-4037
out of stock
-
18-1154
9-51202
-
-
100
I-6
1464949
2836018
18-4037
out of stock
-
18-1154
9-51202
-
-
100
I-6
2641855
3253111
18-4037
out of stock
-
18-1154
9-51202
-
-
100
4
B209468
& UP
-
-
18-1346
9-51200
-
-
105 (jet)
V-6
D820000
& UP
-
-
18-1345
9-51204
-
-
110
I-6
1870204
2314955
18-4037
out of stock
-
18-1154
9-51202
-
-
115
I-6
2836019
C099999
18-4037
out of stock
-
18-1154
9-51202
-
-
115
4
C100000
& UP
-
-
18-1346
9-51200
-
-
125
I-6
2314956
3253111
18-4037
out of stock
-
18-1154
9-51202
-
-
125
4
D283222
& UP
-
-
18-1346
9-51200
-
-
135
I-6
2839369
3293233
18-4037
out of stock
-
18-1154
9-51202
-
-
135
V-6
D082000
& UP
-
-
18-1345
9-51204
-
-
135 DFI
V-6
D082000
& UP
-
-
18-1345
9-51204
-
-
140
I-6
3293234
& UP
18-4037
out of stock
-
18-1154
9-51202
-
-
140 (jet)
V-6
D082000
& UP
-
-
18-1345
9-51204
-
-
150
I-6
3502806
5327662
18-4037
out of stock
-
18-1154
9-51202
-
-
150
V-6
4868998
A904645
-
-
18-1345
9-51204
-
-
150 DFI
V-6
D082000
& UP
-
-
18-1345
9-51204
-
-
150 XR6
V-6
D082000
& UP
-
-
18-1345
9-51204
-
-
175
V-6
4301235
6608750
-
-
18-1345
9-51204
-
-
175 EFI
V-6
D082000
& UP
-
-
18-1345
9-51204
-
-
200
V-6
4839034
D081999
-
-
18-1345
9-51204
-
-
200
V-6
D082000
& UP
-
-
18-1345
9-51204
-
-
200 EFI
V-6
D082000
& UP
-
-
18-1345
9-51204
-
-
225
V-6
5628028
& UP
-
-
18-1345
9-51204
-
-
250
V-6
C101891
& UP
18-1347
9-51207
18-1345
9-51204
-
-
275
V-6
C101891
& UP
18-1347
9-51207
18-1345
9-51204
-
-
3.4L
V-6
5611648
& UP
18-1347
9-51207
18-1345
9-51204
-
-
HP/Liter
Cyl.
Beginning S/N
Ending S/N
Sierra Center Main Bearing
Mallory Center Main Bearing
Sierra Lower Main Bearing
Mallory Lower Main Bearing
Sierra Upper Main Bearing
Mallory Upper Main Bearing
Notes:
(1) : 56 required per main bearing
Refine Parts List
HP/Liter
(3.4 to 275)
Extra 10% Off! - Splash into Summer Sale
Main Bearing - Sierra
Sale Price:
$
50.39
Part # 18-1347
Hurry! Only 1 left in stock
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Part # 18-1347
Replaces OEM part #
MERCURY MARINE 31-88269T
For: Mercury/Mariner 250/275/3.4L
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Main Bearing - Sierra
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