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 hp1ALL---18-1398 -18-1398 -
3.6 hp1ALL---18-1398 -18-1398 -
3.9 hp1ALL---18-1398 -18-1398 -
4 hp12498136A809600--18-1398 -18-1398 -
4 hp25589202& UP--18-1398 ---
4.5 hp14107220& UP--18-1398 -18-1398 -
6 hp219161392529894--18-1398 -18-1398 -
6 hp2A197112& UP--18-1397 9-75104 --
7.5 hp22529895& UP--18-1398 -18-1398 -
82A197112& UP--18-1397 9-75104 --
9.821865779& UP--18-1398 -18-1398 -
9.92A197112& UP--18-1397 9-75104 --
152B292414& UP--18-1397 9-75104 --
20212929106443972--18-1153 9-75113 18-1153 9-75113
25 (KF 9)437715049576118-4035-----
30 (MK30)4ALL-18-4035-----
3041271885144813918-4035-18-1154 9-51202 18-1154 9-51202
302G053314& UP--18-1154 9-51202 --
30 (jet)4C159200& UP18-4037-18-1154 9-51202 18-1154 9-51202
30 (jet)3G590000& UP--18-1154 9-51202 --
354121722144813918-4035-18-1154 9-51202 18-1154 9-51202
3526445653B110788--18-1154 9-51202 --
35 (MK35)41217222127188418-4035-----
25 (MK40)4711400& UP18-4035-----
40 (MK50)4ALL-18-4035-----
40 (MK55)4831021& UP18-4035-----
4041279685147650918-4035-18-1154 9-51202 18-1154 9-51202
4022874704& UP--18-1154 9-51202 --
404C159200& UP18-4037-18-1154 9-51202 18-1154(1) 9-51202
402G053314& UP--18-1154 9-51202 --
403G531301& UP--18-1154 9-51202 --
4541476510153156818-4035-18-1154 9-51202 18-1154(1) 9-51202
4545531630& UP18-4037-18-1154 9-51202 18-1154(1) 9-51202
45 (jet)-D000750G589999--18-1154 9-51202 --
45 (jet)3G590000& UP--18-1154 9-51202 --
45 (MK58)41139538& UP18-4035-----
5041421113519325818-4035-18-1154 9-51202 18-1154(1) 9-51202
5045193259& UP18-4037-18-1154 9-51202 18-1154 9-51202
5036428681D00074918-4037-----
503D000750G589999--18-1154 9-51202 --
503G590000& UP--18-1154 9-51202 --
553D000750G589999--18-1154 9-51202 --
553G590000& UP--18-1154 9-51202 --
6041303411154274418-4037-18-1154 9-51202 18-1154(1) 9-51202
6036428681D00074918-4037-----
603D000750G589999--18-1154 9-51202 --
603G590000& UP--18-1154 9-51202 --
6541545745329318318-4037-18-1154 9-51202 --
6533293184457165118-4037-----
60 (MK75)6ALL-18-4037-----
65 (jet)-D283222& UP--18-1346 9-51200 --
70 (MK78)61143038& UP18-4037-----
7061296411156623918-4037-18-1154 9-51202 18-1154(1) 9-51202
7034571652642868018-4037-----
703A996142& UP--18-1346 9-51200 --
7546432901& UP18-4037-18-1154 9-51202 --
753C222000& UP--18-1346 9-51200 --
8061335465156623918-4037-18-1154 9-51202 18-1154(1) 9-51202
8042559001643290018-4037-18-1154 9-51202 --
85I-61460999176682318-4037-18-1154 9-51202 --
8543493913483199818-4037-18-1154 9-51202 --
90I-61766824186977518-4037-18-1154 9-51202 --
90I-64845301& UP18-4037-18-1154 9-51202 --
903A996142& UP--18-1346 9-51200 --
95I-61869776231858518-4037-18-1154 9-51202 --
100I-61464949283601818-4037-18-1154 9-51202 --
100I-62641855325311118-4037-18-1154 9-51202 --
1004B209468& UP--18-1346 9-51200 --
105 (jet)V-6D820000& UP--18-1345 9-51204 --
110I-61870204231495518-4037-18-1154 9-51202 --
115I-62836019C09999918-4037-18-1154 9-51202 --
1154C100000& UP--18-1346 9-51200 --
125I-62314956325311118-4037-18-1154 9-51202 --
1254D283222& UP--18-1346 9-51200 --
135I-62839369329323318-4037-18-1154 9-51202 --
135V-6D082000& UP--18-1345 9-51204 --
135 DFIV-6D082000& UP--18-1345 9-51204 --
140I-63293234& UP18-4037-18-1154 9-51202 --
140 (jet)V-6D082000& UP--18-1345 9-51204 --
150I-63502806532766218-4037-18-1154 9-51202 --
150V-64868998A904645--18-1345 9-51204 --
150 DFIV-6D082000& UP--18-1345 9-51204 --
150 XR6V-6D082000& UP--18-1345 9-51204 --
175V-643012356608750--18-1345 9-51204 --
175 EFIV-6D082000& UP--18-1345 9-51204 --
200V-64839034D081999--18-1345 9-51204 --
200V-6D082000& UP--18-1345 9-51204 --
200 EFIV-6D082000& UP--18-1345 9-51204 --
225V-65628028& UP--18-1345 9-51204 --
250V-6C101891& UP18-1347 9-51207 18-1345 9-51204 --
275V-6C101891& UP18-1347 9-51207 18-1345 9-51204 --
3.4LV-65611648& UP18-1347 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)
Complete V6 Center Main Bearing - Sierra
Your Price: $61.99
Save: $26.32
(29% Off $88.31)
Part # 18-1192 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 1 hr 0 mins.
No Reviews | Write Review
Replaces OEM part #
  • MERCURY MARINE 31-88903T
  • MERCURY MARINE 31-67445
  • For: Mercury/Mariner older V6 135-200HP
  • Early style with no lip on split sleeve
Main Bearing - Sierra
Your Price: $55.99
Part # 18-1347 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 1 hr 0 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review
Replaces OEM part #
  • MERCURY MARINE 31-88269T
  • For: Mercury/Mariner 250/275/3.4L
 
Center Main Bearings - Sierra
Your Price: $20.50 Discontinued
Save: $4.49
(17% Off $24.99)
Part # 18-1352 ValueShip™ Eligible
No Reviews | Write Review
Needle Bearing - Sierra
Needle Bearing - Sierra
Your Price: $89.99
Save: $60.01
(40% Off $150.00)
Part # 18-4037-9 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 1 hr 0 mins.
No Reviews | Write Review
Replaces OEM part #
  • MERCURY MARINE 29-71422
  • Main Bearing
  • Std. Pkg. 200
 
Mercury/chrysler Lower Rod Bearing With Retainer
Your Price: $35.94
Part # 010-138 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 1 hr 0 mins.
No Reviews | Write Review
    Mercury:
  • 31-62596A 1
  • 31-62596A 2
 
Mercury Lower Rod Needles
Your Price: $9.63
Part # 010-138-16 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 1 hr 0 mins.
No Reviews | Write Review
    Mercury:
  • 31-62596A1
Mercury Center Main Bearing Assembly L3 L4
Mercury Center Main Bearing Assembly L3 L4
Your Price: $43.36
Part # 010-143 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 1 hr 0 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review
    Mercury:
  • 42943A1
Mercury Center Main Bearing Assembly 3.0l 03-up
Mercury Center Main Bearing Assembly 3.0l 03-up
Your Price: $84.69
Part # 010-144 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 1 hr 0 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review
    Mercury:
  • 817001A 1
Mercury Center Main Bearing
Mercury Center Main Bearing
Your Price: $35.34
Part # 010-262 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 1 hr 0 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review
    Mercury:
  • 16756A 6
  • 16756A6
  • 31-16756A 6
  • 31-16756A6
Mercury Center Main 15-25 Hp
Mercury Center Main 15-25 Hp
Your Price: $81.77
Part # 010-266 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 1 hr 0 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review
    Mercury:
  • 86992A5
Mercury Center Main Bearing 60hp 98-up
Mercury Center Main Bearing 60hp 98-up
Your Price: $47.44
Part # 010-267 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 1 hr 0 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review
    Mercury:
  • 827955A 2
 
Mercury Center Main Bearing
Your Price: $34.66
Part # 010-281 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 1 hr 0 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review
    Mercury:
  • 31-88903
Sierra
Ask a question for
This product ships in 1 business day.

Add to Cart and enter your Postal Code to determine the shipping charges and estimated delivery date.
* Most products and orders leave our warehouse in 1 business day. However, select items may take more processing time. Alaska and Hawaii orders please add 1 additional warehouse processing day.
Standard Shipping Policies
September Savings! Enjoy deep discounts on thousands of clearance and winterizing items.