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Pro Marine Yamaha / Mercury Powerhead Gasket Kit
Yamaha F75-F115 & Mercury 75-90HP Powerhead Gasket Kit - 6803
The Pro Marine 6803 Powerhead Gasket Kit is a replacement engine gasket set for a broad range of Yamaha and Mercury outboards. Verified Yamaha applications include select F75, F80, F90, F100 and F115 four-stroke engines, along with select Yamaha 115HP and 130HP applications.
Mercury application data also identifies select 75HP and 90HP carbureted outboards across multiple serial-number ranges.
This kit cross references numerous Yamaha powerhead gasket-set numbers in the 6D8, 6N6, 67F and 68V families as well as Mercury 804345A1, 804345A2 and 804345A02.
OEM & Cross Reference Numbers
| Brand / Type | Part Number |
|---|---|
| Pro Marine | 6803 |
| Yamaha OEM | 6D8-W0001-00-00 |
| Yamaha OEM | 6D8-W0001-01-00 |
| Yamaha OEM | 6D8-W0001-02-00 |
| Yamaha OEM | 6D8-W0001-03-00 |
| Yamaha OEM | 6D8-W0001-04-00 |
| Yamaha OEM | 6N6-W0001-A5-00 |
| Yamaha OEM | 67F-W0001-00-00 |
| Yamaha OEM | 67F-W0001-01-00 |
| Yamaha OEM | 67F-W0001-02-00 |
| Yamaha OEM | 67F-W0001-03-00 |
| Yamaha OEM | 68V-W0001-00-00 |
| Yamaha OEM | 68V-W0001-01-00 |
| Yamaha OEM | 68V-W0001-02-00 |
| Yamaha OEM | 68V-W0001-03-00 |
| Yamaha OEM | 68V-W0001-04-00 |
| Yamaha OEM | 68V-W0001-05-00 |
| Mercury OEM | 804345A1 |
| Mercury OEM | 804345A2 |
| Mercury OEM | 804345A02 |
Yamaha Outboard Fitment
Yamaha used this powerhead gasket-set family across several engine generations. The supplied fitment includes both four-stroke and conventional two-stroke applications.
| Engine Family | Verified Applications |
|---|---|
| Yamaha F75 Four-Stroke | F75TLRB, F75TLRC, F75TLRD, F75TLR, F75TLR_041, F75LA and F75LA_0112 applications. |
| Yamaha F80 Four-Stroke | F80TLRX, F80TLRY, F80TLRZ, F80TXRX, F80TXRY, F80TJRA, F80TJRB, F80TLRA and F80TLRB. |
| Yamaha F90 Four-Stroke | F90TJRB, F90TJRC, F90TJRD, F90TJR, F90TLRB, F90TLRC, F90TLRD, F90TLR, F90TXRD, F90TXR, F90JA, F90LA and F90XA, including related suffix configurations. |
| Yamaha F100 Four-Stroke | F100TLRX, F100TLRY, F100TLRZ, F100TXRX, F100TXRY, F100TXRZ, F100TLRA, F100TLRB, F100TXRA and F100TXRB. |
| Yamaha F115 Four-Stroke | F115TLRY, F115TLRZ, F115TLRA/B/C/D, F115TXRY, F115TXRZ, F115TXRA/B/C/D, F115TJRA/B/C/D and later F115TJR, F115TLR and F115TXR applications. |
| Yamaha LF115 Counter-Rotation | LF115TXRY, LF115TXRZ, LF115TXRA/B/C/D and later LF115TXR applications. |
| Yamaha 115HP 2-Stroke | 115TLRA, 115TLRB, 115TLRC, 115TLRD, later 115TLR applications and select 115TXR models. |
| Yamaha 130HP 2-Stroke | 130TLRA, 130TLRB, 130TLRC, 130TXRA, 130TXRB and 130TXRC. |
Representative Yamaha Model-Year Coverage
| Model Years | Examples |
|---|---|
| 1999-2001 | F80, F100 and F115 model families including X, Y and Z suffix engines. |
| 2002 | F80, F100, F115, LF115, 115 and 130 applications. |
| 2003 | F75, F80, F90, F100, F115, LF115, 115 and 130 applications. |
| 2004 | F75, F90, F115, LF115, 115 and 130 applications. |
| 2005 | F75TLRD, F90TJRD, F90TLRD, F90TXRD, F115TJRD, F115TLRD, F115TXRD, LF115TXRD, 115TLRD and 115TXRD. |
| Later Applications | Select F75, F90, F115 and 115HP model families listed in the supplied application information as 2006 and later. |
Mercury 75HP & 90HP Carbureted Fitment
Mercury catalog information supplied for this gasket-set family identifies the following 75HP and 90HP carbureted outboard applications.
| Mercury Engine | Serial Range |
|---|---|
| 75HP Carb | 0G960500 thru 0T800999 |
| 75HP Carb Bodensee | 0G960500 thru 0T800999 |
| 90HP Carb | 0G960500 thru 0T800999 |
| 75HP Carb | 0T801000 thru 1B226999 |
| 75HP Carb Bodensee | 0T801000 thru 1B226999 |
| 90HP Carb | 0T801000 thru 1B226999 |
The supplied Mercury application data shows this gasket-set family appearing throughout the fuel pump, intake/exhaust valves, intake, cylinder block and crankcase, cylinder head, crankshaft/piston/connecting rod and powerhead gasket-set component diagrams for the compatible 75HP and 90HP carbureted engines.
This gasket kit crosses multiple Yamaha and Mercury engine families. Do not order based only on horsepower.
For Yamaha engines, verify the complete model number and confirm that the engine calls for one of the 6D8-W0001, 6N6-W0001, 67F-W0001 or 68V-W0001 gasket-set numbers above.
For Mercury applications, verify the engine serial number and confirm that the original gasket set cross references 804345A1, 804345A2 or 804345A02.
What is Included
The 6803 Powerhead Gasket Kit is intended to provide the major gaskets and seals required during compatible powerhead disassembly and reassembly.
Exact contents should be compared with the product image and the parts required for your specific engine before beginning the rebuild.
What This Kit is Used For
A powerhead gasket kit is used when rebuilding or extensively servicing the engine powerhead. Removing cylinder heads, crankcases and other major engine components normally requires replacement of the disturbed gaskets and sealing components before the engine is reassembled.
Using a complete gasket kit helps keep the major sealing parts for the rebuild together rather than purchasing each gasket individually.
Common Uses for a Powerhead Gasket Kit
- Complete powerhead rebuild
- Crankshaft and connecting rod repair
- Piston and cylinder repair
- Cylinder-head removal and overhaul
- Crankcase disassembly
- Major internal engine repairs
- Replacement of aged or damaged engine sealing components
Parts to Inspect During a Powerhead Rebuild
- Pistons and piston rings
- Connecting rod bearings
- Connecting rod bolts
- Crankshaft main bearings
- Crankshaft journals
- Cylinder bores
- Intake and exhaust valves on four-stroke models
- Valve stem seals and valve springs
- Oil pump and lubrication passages
- Cooling passages and thermostats
Key Features and Benefits
- Pro Marine powerhead gasket kit
- Pro Marine part number 6803
- Fits select Yamaha F75 four-strokes
- Fits select Yamaha F80 four-strokes
- Fits select Yamaha F90 four-strokes
- Fits select Yamaha F100 four-strokes
- Fits extensive Yamaha F115 / LF115 applications
- Fits select Yamaha 115HP and 130HP applications
- Fits select Mercury 75HP carbureted outboards
- Fits select Mercury 90HP carbureted outboards
- Replaces multiple 6D8-W0001 gasket-set numbers
- Replaces multiple 67F-W0001 gasket-set numbers
- Replaces multiple 68V-W0001 gasket-set numbers
- Cross references Mercury 804345A1 / A2 / A02
FAQ
What engines does Pro Marine 6803 fit?
Verified applications include select Yamaha
F75, F80, F90, F100 and F115 four-strokes,
select Yamaha 115HP / 130HP engines and select
Mercury 75HP and 90HP carbureted outboards.
Does 6803 fit Yamaha F75?
Yes. Verified applications include F75TLRB, F75TLRC, F75TLRD,
later F75TLR applications and select F75LA models.
Does it fit Yamaha F90?
Yes. The supplied fitment includes numerous F90 TJR, TLR, TXR,
JA, LA and XA configurations.
Does it fit Yamaha F100?
Yes. Verified applications include several F100TLR and F100TXR
models from 1999 through 2003.
Does 6803 fit Yamaha F115?
Yes. The supplied fitment includes extensive F115 and LF115 applications
from early 2000 model families through later engines.
Does this gasket kit fit Yamaha 115HP 2-stroke engines?
Yes. The supplied application list includes select 115TLR and 115TXR
engines from 2002 through later model families.
Does it fit Yamaha 130HP?
Yes. Verified models include 130TLRA/B/C and 130TXRA/B/C.
Does this fit Mercury 75HP?
Yes. Mercury application data shows compatible 75HP carbureted engines
from 0G960500 thru 1B226999, divided between the
two catalog serial ranges shown above.
Does it fit Mercury 90HP?
Yes. Mercury 90HP carbureted applications are shown for
0G960500 thru 0T800999 and
0T801000 thru 1B226999.
What Yamaha OEM gasket sets does 6803 replace?
It cross references multiple numbers in the
6D8-W0001, 6N6-W0001, 67F-W0001 and 68V-W0001
families listed above.
What Mercury numbers does it replace?
Mercury references include 804345A1, 804345A2 and
804345A02.
Should I order this kit only by horsepower?
No. Always verify the complete Yamaha model number or Mercury serial
number because multiple gasket kits can be used within similar horsepower
families.
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.
- Parts must be new, unused, and in original packaging.
- Installed parts are not returnable.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
6803, Pro Marine 6803, Yamaha powerhead gasket kit, Yamaha powerhead gasket set, Mercury powerhead gasket kit, 6D8-W0001-00-00, 6D8-W0001-01-00, 6D8-W0001-02-00, 6D8-W0001-03-00, 6D8-W0001-04-00, 6N6-W0001-A5-00, 67F-W0001-00-00, 67F-W0001-01-00, 67F-W0001-02-00, 67F-W0001-03-00, 68V-W0001-00-00, 68V-W0001-01-00, 68V-W0001-02-00, 68V-W0001-03-00, 68V-W0001-04-00, 68V-W0001-05-00, 804345A1, 804345A2, 804345A02, Yamaha F75 gasket kit, Yamaha F80 gasket kit, Yamaha F90 gasket kit, Yamaha F100 gasket kit, Yamaha F115 gasket kit, Yamaha LF115 gasket kit, Yamaha 115 gasket kit, Yamaha 130 gasket kit, Yamaha F115 powerhead rebuild, Yamaha F90 powerhead rebuild, Mercury 75 carb gasket kit, Mercury 90 carb gasket kit, Mercury 75 powerhead gasket set, Mercury 90 powerhead gasket set, Mercury 0G960500, Mercury 0T801000, Mercury 1B226999
6D8-W0001-01-00
6D8-W0001-02-00
6D8-W0001-03-00
6D8-W0001-04-00
6N6-W0001-A5-00
67F-W0001-00-00
67F-W0001-01-00
67F-W0001-02-00
67F-W0001-03-00
68V-W0001-00-00
68V-W0001-01-00
68V-W0001-02-00
68V-W0001-03-00
68V-W0001-04-00
68V-W0001-05-00
804345A02
804345A1
804345A2
0777387
18-3676
18-7170
307239
312979
33504
3852071
508675
765604
777387
8M0214926
9-43026
Pro Marine V6 Center Main Bearing
Mercury & Mariner 2.5L V6 Powerhead Center Main Bearing
The Pro Marine 167P center main bearing is used during crankshaft service and powerhead rebuild work on select Mercury and Mariner 2.5L V6 outboards.
This bearing supports the crankshaft center main position and is commonly installed during complete engine overhauls on compatible EFI, DFI, XR6, Pro Max, Offshore, SportJet, and other Mercury 2.5L V6 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 Pro Marine part number 167.
View Pro Marine Center Main Bearing 167
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 | 167P |
What This Bearing Does
This center main bearing supports the crankshaft inside compatible Mercury and Mariner 2.5L V6 powerheads.
Center main bearings help maintain crankshaft alignment, reduce friction, and support smooth crankshaft rotation while the engine is running under load.
During a powerhead rebuild, replacing worn main bearings is critical for protecting the crankshaft, rods, pistons, and internal rotating assembly.
This bearing is commonly used by marine technicians and engine builders when rebuilding Mercury 2.5L V6 fishing, performance, and SportJet engines.
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, Offshore, and SportJet applications
- Replaces Mercury OEM 16756A6 and related center main bearing numbers
- Supports crankshaft alignment and smooth rotation
- Designed for marine powerhead rebuild service
- Common replacement during internal engine overhaul work
- Alternate Pro Marine version to part number 167
Center Main Bearing Details
- Brand: Pro Marine
- Part Number: 167P
- 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 Assembly
- Use: Center main crankshaft bearing support
FAQ
What 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 Mercury OEM numbers does this replace?
This bearing replaces Mercury OEM numbers 16756, 16756A1, 16756A2, 16756A3, 16756A4, 16756A6, and 94842.
Is this a Pro Marine product?
Yes. This is a Pro Marine replacement center main bearing.
When is this bearing normally replaced?
It is typically replaced during powerhead rebuilds, crankshaft service, or when internal bearing wear is found during engine inspection.
Do you stock another version of this bearing?
Yes. We also stock Pro Marine part number 167 for the same general Mercury 2.5L V6 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
167P, 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, Mercury powerhead rebuild bearing
16756
16756A1
16756A2
16756A3
16756A4
16756A6
9-51215
94842
0379258
0769657
0775546
20080
21860
53853
63742
63742T
9-51202
8667A42
8667T42
8667A42
8667T42