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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.
42089A3
42089A4
42089A5
0387855
0388193
0391507
0394546
0777457
394546
777457
Pro Marine Yamaha Driveshaft Support Bearing
Lower Unit Bearing for Yamaha Offshore & HPDI Gearcases
This Pro Marine lower unit driveshaft bearing replaces Yamaha OEM part numbers 93315-430V5-00 and 93317-330U2-00.
This bearing is designed for compatible Yamaha offshore, HPDI, SHO, Saltwater Series, and FourStroke lower units used across a wide range of 115-300HP applications.
Common Yamaha Gearcase Applications
This Pro Marine bearing is used across many Yamaha drivetrain and gearcase assemblies from traditional 2-stroke offshore platforms through modern FourStroke applications.
| Engine Family | Horsepower Range | Production Range | Application Notes |
|---|---|---|---|
| Yamaha V4 2-Stroke | 115HP-130HP | 1986-Present | Used in select Saltwater Series and standard gearcases |
| Yamaha V6 Offshore Models | 150HP-250HP | 1986-Present | Fits many Pro V, Offshore, and Saltwater lower units |
| Yamaha HPDI / VMAX | 150HP-300HP | 1998-Present | Used in compatible HPDI and VMAX gearcase assemblies |
| Yamaha FourStroke | F75-F300 | 2000-Present | Select offshore and standard FourStroke lower units |
| Yamaha Counter Rotation | LF / LZ / Z Series | 1990-Present | Compatible with many left-hand rotation gearcases |
| Yamaha SHO Models | VF90-VF175 | 2006-Present | Select VMAX SHO lower unit applications |
• Yamaha Offshore and Saltwater Series models
• HPDI and VMAX applications
• F-Series FourStroke outboards
• LF and counter-rotation lower units
• SHO and VMAX SHO applications
• Pro V and traditional V6 offshore gearcases
Common lower unit families include: 115TLR, 130TLR, 150TLR, 200TLR, 225TLR, HPDI, Offshore, SHO, FourStroke, and Saltwater Series models.
Yamaha used multiple lower unit configurations depending on shaft length, rotation, and production year. Always verify fitment using your model and serial number.
OEM Part Numbers & Cross References
| Reference Type | Part Number |
|---|---|
| Pro Marine | 430P |
| Replaces Yamaha OEM | 93315-430V5-00 |
| Replaces Yamaha OEM | 93317-330U2-00 |
| Alternate Search Format | 93315430V500 |
| Alternate Search Format | 93317330U200 |
Related Yamaha Lower Unit Bearing
Looking for the matching Pro Marine bearing used in many of the same Yamaha lower unit applications?
See the Pro Marine 430V Drive Shaft Cap Bearing .
Lower Unit Bearing Function
This bearing helps support the driveshaft inside compatible Yamaha lower unit assemblies and maintains proper drivetrain alignment during operation.
Proper driveshaft bearing support is important for smooth gear engagement, seal life, propshaft alignment, and long-term lower unit durability.
Worn bearings may contribute to excessive vibration, abnormal drivetrain noise, water intrusion, or accelerated internal gearcase wear.
Replacing worn bearings during lower unit rebuild service helps restore drivetrain stability and gearcase reliability.
Key Features and Benefits
- Pro Marine replacement driveshaft support bearing
- Fits many Yamaha offshore and HPDI lower units
- Used in compatible 115-300HP Yamaha gearcases
- Supports proper driveshaft rotation and alignment
- Helps stabilize internal drivetrain components
- Commonly replaced during gearcase overhaul service
- Fits select FourStroke, SHO, and Saltwater Series models
- Aftermarket replacement for Yamaha OEM bearing assemblies
Driveshaft Bearing Details
- Brand: Pro Marine
- Part Type: Driveshaft Support Bearing
- Pro Marine Part Number: 430P
- Replaces OEM: 93315-430V5-00
- Additional OEM Reference: 93317-330U2-00
- Application: Yamaha Lower Unit / Gearcase
- System: Drivetrain / Lower Unit
- Quantity Sold: Each
FAQ
Where is this bearing used?
This bearing is used inside compatible Yamaha lower unit and gearcase assemblies to support the driveshaft and stabilize drivetrain operation.
What Yamaha applications use this bearing?
This bearing is found in many Yamaha offshore, HPDI, SHO, Saltwater Series, and FourStroke gearcases from approximately 115-300HP.
What OEM numbers does this replace?
It replaces Yamaha OEM part numbers 93315-430V5-00 and 93317-330U2-00.
Does this fit counter-rotation lower units?
Yes. This bearing is used in select LF, LZ, and counter-rotation lower unit applications.
Can a worn driveshaft bearing cause gearcase damage?
Yes. Worn bearings may contribute to vibration, seal wear, water intrusion, and internal lower unit damage.
Is this an OEM Yamaha bearing?
No. This is a Pro Marine aftermarket replacement bearing.
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 components should be installed only after confirming correct fitment.
- 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
430P, 430V, 93315-430V5-00, 93317-330U2-00, Yamaha driveshaft bearing, Yamaha offshore bearing, Yamaha HPDI lower unit bearing, Yamaha FourStroke gearcase bearing, Yamaha SHO lower unit bearing, Yamaha Saltwater Series bearing, Yamaha counter rotation bearing, Yamaha drivetrain support bearing, Yamaha lower unit rebuild bearing, Yamaha gearcase bearing
93317-330U2-00
24200
436253
436861
439517
5006713
9-53439
0394409
0434137
0765580
13170
18-3500
329766
394409
434137
765580
6L2-W0001-00-00
6L2-W0001-01-00
6L2-W0001-02-00
68F-11642-01-85
