S2K Commerce - Products Dropdown
Actions
S2K Commerce - Order Entry
Actions
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.
18-3920
850318
8503181
10-869
812869
812869
36900
812868
8167431
879855001
18-7837
3C8040050
3C8040050M
350040050
350040050M
6L2-24435-00-00
677-24411-01-00
677-24411-02-00
677-24434-01-00
677-24434-02-00
677-24471-01-00
815009
815009M
84261M
84262M
84265M
Yamaha Upper Driveshaft Seal 28019
The 28019 Upper Driveshaft Seal replaces Yamaha OEM part numbers 93101-28019-00, 93101-28018-00, and 93101-28004-00. This seal is used in Yamaha lower unit gearcases to prevent water intrusion and retain gear lube around the driveshaft.
Fitment Overview
This seal is confirmed through Yamaha OEM lower unit diagrams and is used across both 4.2L V6 and 5.3L V8 outboard platforms. It is installed at the top of the driveshaft in the gearcase assembly.
Compatibility
| Engine Model | Horsepower | Engine Platform |
|---|---|---|
| F200 / LF200 | 200 HP | 4.2L V6 |
| F225 / LF225 | 225 HP | 4.2L V6 |
| F250 / LF250 | 250 HP | 4.2L V6 |
| VF200 / VF225 / VF250 | 200–250 HP | 4.2L SHO |
| F300 / LF300 | 300 HP | 4.2L V6 & 5.3L V8 |
| F350 / LF350 | 350 HP | 5.3L V8 |
Fits These Serial Ranges
This seal is used across multiple Yamaha gearcase generations and is not limited to a single serial break. It is commonly found in:
- 4.2L V6 outboards (modern production models)
- 5.3L V8 F300 and F350 models beginning in 2007
Important: Because Yamaha uses multiple seal variations depending on gearcase design, always verify using your exact model and serial number before ordering.
Part Numbers and Cross References
| Type | Part Number |
|---|---|
| Pro Marine | 28019 |
| Yamaha OEM | 93101-28019-00 |
| Replaces | 93101-28018-00 |
| Replaces | 93101-28004-00 |
| Application | Upper Driveshaft Seal |
What This Part Is Used For
This seal sits at the top of the driveshaft inside the lower unit, forming a barrier between the gearcase oil and external water exposure.
- Prevents water intrusion into the gearcase
- Retains gear lube under pressure
- Protects gears and bearings from contamination
- Critical for lower unit longevity
Failure of this seal can result in water-contaminated gear oil, corrosion, and expensive gearcase damage.
FAQ
Where is this seal located?
At the top of the driveshaft inside the gearcase assembly.
What happens if this seal fails?
Water enters the gearcase, causing milky oil and potential gear damage.
Is this used on both 4.2L and V8 Yamaha engines?
Yes, this seal is used across both platforms depending on gearcase design.
Do I need special tools to replace it?
Yes, lower unit disassembly and seal drivers are typically required.
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.
- 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 Part Numbers
28019, 93101-28019-00, 93101-28018-00, 93101-28004-00, Yamaha F225 seal, F250 seal, VF225 VF250 seal, F300 F350 driveshaft seal
93101-28018-00
93101-28019-00
Pro Marine Mercury Remote Control Power Trim Switch
Mercury 4000 Side Mount Trim Switch and Harness - 18286P
Pro Marine 18286P is an aftermarket replacement power trim and tilt switch with harness for compatible Mercury remote controls, including the 4000 Side Mount Power Trim control.
This switch replaces Mercury OEM part number 18286A43 and previous Mercury numbers 18286A26, 18286A2 and 16991A1.
Pro Marine also stocks the genuine Mercury OEM 18286A43 Switch/Harness Assembly for customers who prefer the factory Mercury version.
Part Type: Power Trim and Tilt Switch / Harness
Manufacturer: Pro Marine
OEM or Aftermarket: Aftermarket
Primary Application: Mercury 4000 Side Mount Power Trim Control
Control Application: 1994-Present
Replaces OEM #: 18286A43
Pro Marine Item #: 18286P
Compatible Applications
Pro Marine 18286P replaces the trim switch and harness used in the following applications identified in the supplied Mercury catalog fitment.
| Application | Years | Fitment Details |
|---|---|---|
| Mercury 4000 Side Mount Control | 1994-Present | Side Mount Remote Control with Power Trim |
| Mercury Amanzi 320 Hypalon RIB | 2004-2006 | Remote Control Components |
| Mercury Amanzi 380 Hypalon RIB | 2004-2006 | Remote Control Components |
This switch is selected by the Mercury remote-control configuration, not simply by engine horsepower or model.
The supplied Mercury application information identifies this switch with the 4000 Side Mount Power Trim control from 1994-Present.
Before ordering, inspect your remote control and confirm that the original switch crosses to 18286A43, 18286A26, 18286A2 or 16991A1.
OEM and Cross Reference Numbers
Mercury has used several part numbers for this switch and harness assembly. Current OEM number 18286A43 supersedes the earlier numbers listed below.
| Brand / Type | Part Number | Status |
|---|---|---|
| Pro Marine | 18286P | Aftermarket Replacement |
| Mercury OEM | 18286A43 | Current OEM Number |
| Mercury OEM | 18286A26 | Superseded |
| Mercury OEM | 18286A2 | Superseded |
| Mercury OEM | 16991A1 | Superseded |
Mercury OEM Version Available
Prefer the genuine factory component? Pro Marine also stocks Mercury Marine OEM 18286A43 for the same switch application.
Choose between the Pro Marine 18286P aftermarket replacement and the genuine Mercury OEM 18286A43.
View Mercury OEM Switch/HarnessWhat This Part is Used For
This switch is installed in a compatible Mercury remote-control handle and allows the operator to control the engine's power trim and tilt system directly from the throttle/control handle.
Pressing the switch in one direction commands the trim/tilt system upward, while pressing it in the opposite direction commands the system downward. The attached harness connects the switch to the remote-control wiring.
This lets the operator adjust engine trim while underway or raise and lower the engine as required without moving away from the control handle.
Common Signs of a Worn Trim Switch
A remote-control trim switch is exposed to repeated use and the marine environment. Over time, the switch or attached wiring can become worn or damaged.
Symptoms that may indicate the switch or harness needs inspection include:
- Trim operates from the engine-mounted switch but not from the control handle
- Intermittent trim-up or trim-down operation
- Switch must be pressed repeatedly before the trim responds
- One direction works while the other does not
- Visible damage to the switch button
- Damaged, pinched or deteriorated switch wiring
A trim system that does not operate from the remote-control handle does not automatically mean the trim pump or motor has failed.
If the engine trims correctly from another trim switch but not from the control handle, inspect the remote trim switch, harness, connectors and related wiring as part of the diagnosis.
Replacement Tips
- Disconnect battery power before servicing the remote control.
- Confirm the original switch part number whenever possible.
- Note the routing of the existing switch harness before removal.
- Inspect the remote-control wiring and connectors for corrosion or damage.
- Avoid pinching the replacement harness when reassembling the control.
- Verify both trim-up and trim-down operation after installation.
- Follow Mercury service procedures for the specific remote control.
Key Features and Benefits
- Pro Marine aftermarket power trim and tilt switch
- Switch and attached harness assembly
- Pro Marine item number 18286P
- Replacement for Mercury OEM 18286A43
- Replaces Mercury 18286A26
- Replaces Mercury 18286A2
- Replaces Mercury 16991A1
- Fits the applicable Mercury 4000 Side Mount Power Trim control
- Supplied fitment lists the 4000 Side Mount control from 1994-Present
- Mercury OEM version also available from Pro Marine
FAQ
What does Pro Marine 18286P replace?
18286P replaces Mercury switch/harness assembly
18286A43 and previous Mercury numbers
18286A26, 18286A2 and 16991A1.
Is this a power trim and tilt switch?
Yes. This is the remote-control switch used to operate the engine's
power trim and tilt system from the compatible Mercury control handle.
Does 18286A43 replace 18286A26?
Yes. Mercury 18286A43 is the current OEM replacement
for superseded 18286A26.
Does 18286A43 replace 18286A2 and 16991A1?
Yes. Both 18286A2 and 16991A1 are earlier Mercury
switch/harness numbers superseded by 18286A43.
Does this fit the Mercury 4000 Side Mount control?
Yes. The supplied Mercury fitment identifies this switch with the
4000 Side Mount Power Trim control from 1994-Present.
Does this fit by engine horsepower?
This part is primarily identified by the remote-control
assembly, rather than engine horsepower alone. Verify the
control style and original switch number before ordering.
Does the switch include the harness?
Yes. 18286P is a switch and harness assembly.
Do you carry the genuine Mercury version?
Yes. Pro Marine also stocks the
Mercury OEM 18286A43 Switch/Harness Assembly
.
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 Part Numbers
18286P, 18286A43, 87-18286A43, 18286A26, 87-18286A26, 18286A2, 87-18286A2, 16991A1, 87-16991A1
Searchable Terms
Mercury trim switch, Mercury tilt switch, Mercury power trim switch, Mercury remote control trim switch, Mercury switch harness, Mercury 4000 trim switch, Mercury 4000 side mount trim switch, Mercury throttle handle trim switch, Mercury control box trim switch, Mercury remote trim switch, Mercury 18286A43 replacement, Pro Marine Mercury trim switch
18286A2
18286A26
18286A43