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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.
0435274
432287
435274
0319097
0331916
0777426
18-2913
317228
319097
331916
34610
777426
802305
0777642
113-3110
18-5784
583110
777642
9-25006
0393561
18-0927
323216
326688
328770
329378
34650
393561
777977
878705
0331917
0777441
10-776
18-2938
317227
331917
34620
777441
802306
OEM Suzuki Lower Unit Drain Plug Gasket
Suzuki Gearcase Drain Plug Gasket / Seal Washer
This genuine OEM Suzuki drain plug gasket is used on select Suzuki DF-series outboards within the lower unit gearcase drain and fill plug system.
The gasket helps seal the lower unit drain and fill plugs to help prevent gear lube leakage and maintain proper lower unit sealing.
Compatible Applications
| Engine Range | Engine Type | System | Application Notes |
|---|---|---|---|
| Suzuki DF70A | FourStroke | Lower Unit / Gearcase | Used on compatible lower unit drain and fill plugs |
| Suzuki DF80A | FourStroke | Lower Unit / Gearcase | Used on compatible lower unit drain and fill plugs |
| Suzuki DF90A | FourStroke | Lower Unit / Gearcase | Used on compatible lower unit drain and fill plugs |
| Suzuki DF150-DF300 | FourStroke | Lower Unit / Gearcase | Used on compatible gearcase drain and fill plug assemblies |
| Johnson / Evinrude 200-225HP | FourStroke | Lower Unit / Gearcase | Cross references BRP part number 5034799 |
Always verify your engine model, serial number, and lower unit diagram before ordering gearcase drain plug gaskets and seals.
OEM Part Numbers & Cross References
| Brand | Part Number |
|---|---|
| Suzuki OEM | 09168-10034 |
| Suzuki OEM | 09168-10038 |
| Johnson / Evinrude | 5034799 |
| Alternate Search Format | 0916810034 |
| Alternate Search Format | 0916810038 |
Complete Your Maintenance Service
Ecstar 10W40 Engine Oil Gallon
OEM Suzuki Ecstar FC-W 10W40 marine engine oil gallon for routine outboard maintenance service.
View Product
Ecstar 10W40 Engine Oil Quart
OEM Suzuki Ecstar FC-W 10W40 marine engine oil quart for Suzuki FourStroke outboards.
View Product
Suzuki Oil Filter
Genuine OEM Suzuki oil filter for select DF-series FourStroke outboards.
View Product
Suzuki Gear Lube Quart
Suzuki marine gear lube for lower unit and gearcase maintenance service.
View ProductWhat This Drain Plug Gasket is Used For
This Suzuki gasket is used on compatible lower unit drain and fill plugs within the outboard gearcase assembly.
The gasket helps create a seal between the drain plug and lower unit housing to help prevent gear lube leakage.
Worn or damaged drain plug gaskets may allow lower unit oil leaks and should typically be replaced during gear lube service.
Replacing lower unit drain plug gaskets during service helps maintain proper gearcase sealing and lower unit reliability.
Key Features and Benefits
- Genuine OEM Suzuki drain plug gasket
- Fits select Suzuki DF70A-DF300 outboards
- Cross references Johnson / Evinrude OEM 5034799
- Used on compatible lower unit drain and fill plugs
- Helps prevent lower unit gear lube leaks
- Common replacement during lower unit service
- OEM Suzuki fit and sealing compatibility
- Sold individually
Drain Plug Gasket Details
- Brand: Suzuki
- Part Type: Lower Unit Drain Plug Gasket
- OEM Part Numbers: 09168-10034, 09168-10038
- Cross Reference: Johnson / Evinrude 5034799
- Application: Suzuki DF-Series Lower Units
- System: Gearcase / Lower Unit
- Use: Drain and fill plug sealing
- Quantity Sold: Each
FAQ
What engines does this gasket fit?
This gasket fits select Suzuki DF70A through DF300 outboards using compatible lower unit drain and fill plug assemblies.
What does this gasket seal?
It seals the lower unit drain and fill plugs to help prevent gear lube leakage.
Should drain plug gaskets be replaced during service?
Yes. Many technicians replace drain plug gaskets during every lower unit gear lube service.
Does this cross reference Johnson / Evinrude part numbers?
Yes. This gasket cross references Johnson / Evinrude OEM part number 5034799.
Can a bad drain plug gasket cause lower unit leaks?
Yes. A worn or damaged gasket may allow lower unit gear oil leakage.
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
09168-10034, 09168-10038, 5034799, Suzuki drain plug gasket, Suzuki lower unit gasket, Suzuki drain washer, Suzuki gearcase gasket, DF70A drain gasket, DF90A drain gasket, DF150 lower unit gasket, DF300 drain plug seal, Johnson Evinrude 5034799, gearcase drain gasket, lower unit seal washer
09168-10038
5034799
09168-10004
09168-10022
18-8331
5030071
766416
9-60202
F3921989
F4079550
F724150
YSC-10231-40-0C
YSG-14090-90-8G
18-4698
18-46981-9
34502
38015
49955
604-45342-00-00
60721
8M0077608
804612
81987
81987M
883921
9-60100
90430-08003-00
90430-08020-00
90430-08801-00