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16756A1
16756A3
16756A6
9-51215
94842
10-2404
18-2610
18-2611
18-2611
18-2611
18-2611
37690
37690
521-27
812775
812775A01
8127751
8127754
8127755
18-2740
37660
37660
430051
430052
430053
430055
430056
430057
505-27
10-2403
139581
139581
139581
18-2621
18-2621
37640
37640
521-25
18-2610
18-2610
18-2611
37680
521-26
812775
812775A01
8127751
8127754
8127754
8127755
18-2943
18-2943
37670
443281
443282
443283
443284
505-35
18-2741
37650
37650
43004009
430041
430042
430043
430045
430047
521-21
Pro Marine Center Main Bearing
Mercury & Mariner 2.5L V6 Crankshaft Center Main Bearing
The Pro Marine 167 center main bearing is a replacement crankshaft center main bearing for select Mercury and Mariner 2.5L V6 outboards.
This bearing is commonly used during powerhead rebuilds, crankshaft service, and complete engine overhauls on Mercury EFI, DFI, XR6, Pro Max, Offshore, SportJet, and high-performance 2.5L applications.
Compatible Applications
| Horsepower / Model | Engine Family | Engine Type | Application Notes |
|---|---|---|---|
| 115HP | Mercury / Mariner 2.5L V6 | Carbureted | Select serial-range applications |
| 135HP / 150HP | Mercury 2.5L V6 | EFI & Carbureted | Select production applications |
| 150 XR6 | Mercury 2.5L V6 | XR6 Performance | Select XR6 applications |
| 150HP-175HP | Mercury 2.5L DFI | OptiMax / DFI | Select DFI applications |
| 175HP / 200HP | Mercury 2.5L EFI | EFI Offshore | Select Offshore and EFI models |
| 200 EFI | Mercury 2.5L | High Performance EFI | Select 2.5L EFI applications |
| 200 Pro Max | Mercury 2.5L | Pro Max | Select Pro Max applications |
| 225HP | Mercury 2.5L EFI | EFI Offshore | Select high-performance applications |
| 105 / 110 / 140 Jet | Mercury SportJet 2.5L | SportJet | Select jet drive applications |
We also stock this center main bearing in alternate Pro Marine version 167P.
View Pro Marine Center Main Bearing 167P
OEM Part Numbers & Cross References
| Type | Part Number |
|---|---|
| Mercury OEM Number | 16756 |
| Mercury OEM Cross Reference | 16756A1 |
| Mercury OEM Cross Reference | 16756A2 |
| Mercury OEM Cross Reference | 16756A3 |
| Mercury OEM Cross Reference | 16756A4 |
| Mercury OEM Cross Reference | 16756A6 |
| Mercury OEM Cross Reference | 94842 |
| Pro Marine Part Number | 167 |
What This Center Main Bearing is Used For
This center main bearing supports the crankshaft within compatible Mercury and Mariner 2.5L V6 powerheads.
Main bearings are critical internal engine components responsible for supporting crankshaft rotation and maintaining proper crankshaft alignment during engine operation.
Worn, damaged, or failed crankshaft bearings can contribute to vibration, crankshaft damage, excessive engine noise, and catastrophic engine failure.
Center main bearings are commonly replaced during complete engine rebuilds, crankshaft service, or high-performance engine repair work.
Key Features and Benefits
- Pro Marine replacement center main bearing
- Fits select Mercury and Mariner 2.5L V6 outboards
- Compatible with EFI, DFI, XR6, Pro Max, and SportJet applications
- Replaces Mercury OEM 16756A6 and related part numbers
- Supports proper crankshaft alignment and rotation
- Designed for marine high-performance engine applications
- Excellent replacement for worn or damaged crankshaft bearings
- Common service item during powerhead rebuilds
Center Main Bearing Details
- Brand: Pro Marine
- Part Number: 167
- OEM References: 16756, 16756A1, 16756A2, 16756A3, 16756A4, 16756A6, 94842
- Applications: Mercury & Mariner 2.5L V6 Outboards
- Compatible Systems: EFI, DFI, XR6, Pro Max, Offshore, SportJet
- Engine Family: 2.5L V6
- System: Powerhead / Crankshaft
- Use: Crankshaft center main bearing support
FAQ
What engines does this center main bearing fit?
This bearing fits select Mercury and Mariner 2.5L V6 outboards including EFI, DFI, XR6, Pro Max, Offshore, and SportJet applications.
What OEM numbers does this replace?
This bearing replaces Mercury OEM numbers 16756, 16756A1, 16756A2, 16756A3, 16756A4, 16756A6, and 94842.
What does a center main bearing do?
The center main bearing supports the crankshaft and allows proper crankshaft rotation inside the engine block.
When should main bearings be replaced?
Main bearings are commonly replaced during engine rebuilds, crankshaft repair, or when internal engine wear is discovered.
Do you offer another version of this bearing?
Yes. We also stock alternate Pro Marine version 167P for compatible applications.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 continental U.S.
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1–5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Internal engine components should be installed only by qualified technicians.
- Items must be new, unused, and in original packaging.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
167, 16756, 16756A1, 16756A2, 16756A3, 16756A4, 16756A6, 94842, Mercury center main bearing, Mercury crankshaft bearing, Mercury 2.5L bearing, Mercury Pro Max bearing, Mercury XR6 bearing, Mercury SportJet bearing, Mercury EFI bearing, Mercury DFI bearing, Mercury V6 main bearing, Pro Marine bearing
16756
16756A1
16756A2
16756A3
16756A4
16756A6
9-51215
94842
18786T
187861
187863
35890
9-63856
18-3872
18-3872
35900
41244
41244T02
41245
412451
412452
77671
9-63852
90279
96541
333572
509009
39695
846361
