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Outboard Motor Parts | OEM & Aftermarket
Shop OEM and aftermarket outboard motor parts for Mercury, Yamaha, Suzuki, Honda, Johnson / Evinrude / E-TEC, Tohatsu / Nissan, and Chrysler / Force engines. Pro Marine USA carries parts for routine maintenance, troubleshooting, repair, and complete marine engine rebuilds.
Browse by outboard manufacturer or engine system, or use our OEM parts lookup to identify the correct part number before ordering. Find cooling, fuel, ignition, electrical, internal engine, lower unit, steering, trim, service kit, gasket, seal, and rebuild parts in one place.
Shop Outboard Parts by Manufacturer
Chrysler / Force Outboard Parts for Chrysler and Force outboard repair
Honda Outboard Honda cooling, fuel, electrical, and engine parts
Johnson / Evinrude / E-TEC Outboard Johnson, Evinrude, E-TEC, and OMC replacement parts
Mercury Outboard Mercury and Mariner maintenance, repair, and rebuild parts
Suzuki Outboard Suzuki service, lower unit, fuel, and engine parts
Tohatsu / Nissan Outboard Tohatsu and Nissan outboard replacement parts
Yamaha Outboard Yamaha maintenance, repair, lower unit, and rebuild parts Find the Correct Outboard Part
Not sure which part fits your engine? Start with the engine manufacturer, horsepower, model number, serial number, and year whenever available.
Our OEM parts lookup lets you view factory parts diagrams and identify the original part number for many popular outboard engines. Once you have the OEM number, search Pro Marine to find available OEM and aftermarket replacement options.
Use Our OEM Parts Lookup »Shop Outboard Parts by Engine System
Outboard engines use several interconnected systems. Select your manufacturer above to browse the exact categories available for your engine, including the following common repair and maintenance areas.
Common Outboard Problems and Where to Start
- Engine overheating: inspect the water pump, impeller, thermostat, pressure-control components, cooling passages, and engine anodes.
- Hard starting or rough idle: check fuel delivery, carburetor or injector operation, spark plugs, ignition components, filters, and intake sealing.
- Weak spark or no spark: test ignition coils, stators, switch boxes or ignition modules, sensors, wiring, grounds, and related electrical components.
- Low compression or poor power: inspect pistons, rings, cylinder condition, head and powerhead gaskets, bearings, and other internal engine components.
- Milky gear lube: inspect prop shaft, driveshaft, shift shaft, bearing carrier, and other lower unit seals for water intrusion.
- Lower unit or gearcase noise: inspect bearings, gears, clutch components, shafts, and gear lube condition before continued operation.
- Trim or steering problems: inspect hydraulic fluid level, seals, hoses, trim motors, pumps, steering cylinders, and mechanical connections.
Why Buy Outboard Parts from Pro Marine USA?
- OEM and aftermarket replacement options for major outboard engine brands.
- Marine engine parts for routine maintenance, professional repair, and complete rebuild projects.
- OEM diagram and part-number lookup tools to help identify the correct component before ordering.
- Dealer pricing available for qualified marine repair businesses and dealers.
- Large selection of service kits, engine parts, lower unit components, fuel system parts, electrical parts, steering, and rigging products.
- Same-day weekday shipping available on qualifying in-stock orders placed before the shipping cutoff.
OEM and Aftermarket Outboard Parts
OEM parts are supplied by the original engine manufacturer and are designed for the specific engine application. Aftermarket parts are replacement components produced by independent marine parts manufacturers and may provide additional availability or value for many common repairs.
Pro Marine carries both genuine OEM parts and quality aftermarket replacement parts for many outboard maintenance, repair, and rebuild applications. Always confirm fitment using the engine model, serial number, horsepower, year range, or OEM part number when available.
Frequently Asked Questions
How do I find the correct parts for my outboard motor?
Start by identifying the engine manufacturer, horsepower, model number, serial number, and year. Select the manufacturer above to browse by engine system, or use the OEM parts lookup to locate the original part number from a factory diagram.
Can I search Pro Marine by OEM part number?
Yes. If you already have the OEM part number, enter it into the Pro Marine site search to locate available OEM and aftermarket replacement options. If you do not know the part number, use the OEM parts lookup first.
What information should I have before ordering an outboard part?
Have the engine manufacturer, horsepower, model number, serial number, and year whenever possible. An OEM part number from the original component or parts diagram is especially helpful because visually similar parts may fit different engine families.
What is the difference between OEM and aftermarket outboard parts?
OEM parts come from the original engine manufacturer. Aftermarket parts are replacement components manufactured by other marine parts companies for compatible applications. Pro Marine carries both OEM and aftermarket options across many common outboard engine systems.
Are aftermarket outboard motor parts reliable?
Quality aftermarket marine parts are commonly used for maintenance, professional repair, and engine rebuilding. The best option depends on the application, manufacturer, availability, and customer preference.
Do you carry parts for older outboard motors?
Yes. Pro Marine carries parts for many older Mercury, Mariner, Johnson, Evinrude, Chrysler, Force, Yamaha, Honda, Suzuki, Nissan, and Tohatsu outboards. Availability varies by engine family and component.
What outboard parts are commonly replaced during routine maintenance?
Common maintenance items include engine oil, oil filters, fuel filters, spark plugs, water pump impellers, complete water pump kits, thermostats, gear lube, drain plug seals, anodes, and manufacturer-specific service kit components.
Fitment Tip: Outboard parts can vary by model, serial range, horsepower, and production year. Confirm the OEM part number or engine identification information whenever possible before ordering.
3B2650210M
3B2650211
3B2650211M
3B2660210
3B2660210M
5040525
8M0214945
803748K01
803748Q01
8037481
9-45401
161543
18-3098
369-65021-1
369650210
369650210M
369650211
369650211M
47-16154-3
47-161543
5040180
8M0204676
0778287
0778886
0778888
16510-61A01
16510-61A20
16510-61A20-MHL
16510-61A21
16510-61A21-MHL
16510-61A30
16510-61A31
16510-61A32
16510-61A33
16510-90J00
16510-93J00
16510-96J00
16510-96J10
16510-96J11
18-7896
5033539
5035404
5035703
765598
778287
778886
778888
8M0154773
8M0154781
60V-8259F-01-00
67F-W0093-00-00
8M0175367
8M6010314
804346T02
804346T1
9-37512
OEM Mercury Driveshaft Oil Seal Carrier
Mercury 2.5L & 3.0L EFI / DFI Gearcase Seal Carrier
This genuine OEM Mercury driveshaft oil seal carrier fits select Mercury 2.5L and 3.0L EFI and DFI outboards using compatible gearcase assemblies.
The seal carrier supports the driveshaft sealing system in the upper gearcase area to help retain gear lube and prevent water intrusion into the lower unit.
Compatible Applications
| Engine Family | Engine Type | Application | Application Notes |
|---|---|---|---|
| Mercury 2.5L | EFI Outboards | Gearcase Driveshaft Seal Area | Select high-performance lower units |
| Mercury 2.5L | DFI Outboards | Gearcase Driveshaft Seal Area | Select OptiMax applications |
| Mercury 3.0L | EFI Outboards | Gearcase Driveshaft Seal Area | Select EFI lower units |
| Mercury 3.0L | DFI Outboards | Gearcase Driveshaft Seal Area | Select OptiMax and DFI applications |
| Alpha One Gen II | Sterndrive | Upper Gear Housing | Select sterndrive applications |
Always verify your engine serial number and gearcase application before ordering lower unit sealing components.
OEM Part Numbers & Cross References
| Type | Part Number |
|---|---|
| Current Mercury OEM Number | 8M0214948 |
| Mercury Cross Reference | 807929A1 |
| Mercury Cross Reference | 807929A2 |
| Mercury Cross Reference | 815922A1 |
| Mercury Cross Reference | 815922A5 |
| Mercury Cross Reference | 821759A1 |
| Mercury Cross Reference | 821759A2 |
| Mercury Cross Reference | 821759A3 |
| Mercury Cross Reference | 821759A4 |
| Pro Marine Part Number | 65354P |
What This Driveshaft Oil Seal Carrier is Used For
This Mercury driveshaft oil seal carrier is installed in the upper area of compatible outboard gearcases and sterndrive gear housings.
The carrier supports the driveshaft oil seals and sealing surfaces while helping prevent water intrusion and gear lube leakage.
Corrosion, seal wear, damaged sealing surfaces, or improper installation can contribute to lower unit leaks and gearcase contamination.
Seal carriers are commonly replaced during lower unit rebuild service, driveshaft resealing, or when corrosion damages the seal bore area.
Key Features and Benefits
- Genuine OEM Mercury driveshaft oil seal carrier
- Fits select Mercury 2.5L and 3.0L EFI / DFI outboards
- Also fits select Alpha One Gen II sterndrive applications
- Supports proper driveshaft seal alignment
- Helps prevent water intrusion into the lower unit
- Helps retain gear lube inside the gearcase
- Common replacement during lower unit rebuild service
- OEM Mercury fit and sealing compatibility
Driveshaft Seal Carrier Details
- Brand: Mercury Marine
- Part Type: Driveshaft Oil Seal Carrier
- Current OEM Number: 8M0214948
- Cross References: 807929A1, 807929A2, 815922A1, 815922A5, 821759A1, 821759A2, 821759A3, 821759A4
- Applications: Mercury 2.5L & 3.0L EFI / DFI Outboards
- System: Lower Unit / Gearcase
- Use: Driveshaft sealing and gearcase reseal service
FAQ
What engines does this seal carrier fit?
This carrier fits select Mercury 2.5L and 3.0L EFI and DFI outboards along with certain Alpha One Gen II applications.
What does a driveshaft seal carrier do?
The seal carrier supports the driveshaft oil seals and helps prevent water intrusion and gear lube leakage inside the lower unit.
Why would this part need replacement?
Common causes include corrosion, damaged sealing surfaces, water intrusion, or lower unit rebuild service.
Does this replace older Mercury assemblies?
Yes. This carrier replaces several earlier Mercury part numbers including 807929A1, 815922A5, and 821759A4.
Should the lower unit be pressure tested after installation?
Yes. Pressure and vacuum testing is recommended after seal service to verify proper sealing.
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.
- Lower unit sealing components should be installed only after proper inspection and diagnosis.
- 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
65354P, 8M0214948, 807929A1, 807929A2, 815922A1, 815922A5, 821759A1, 821759A2, 821759A3, 821759A4, Mercury seal carrier, driveshaft oil seal carrier, Mercury 2.5L seal carrier, Mercury 3.0L seal carrier, Mercury EFI lower unit seal, Mercury DFI gearcase seal carrier, Mercury OptiMax seal carrier, Alpha One Gen II seal carrier
807929A1
807929A2
815922A1
815922A5
821759A1
821759A2
821759A3
821759A4
859129
896963
90099
813769
835083
68V-85510-00-00
881336T2