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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.
15170-99E0V
15170-99E00
15170-99E1V
5030699
5032321
Pro Marine Shift Shaft Seal
Yamaha, Mercury & Honda Shift Shaft Seal Replacement
This Pro Marine replacement shift shaft seal is used on select Yamaha, Mercury, and Honda outboard lower units. It helps seal the shift shaft area to prevent water intrusion and gear lubricant leakage.
Designed as a replacement for Yamaha, Mercury, Honda, Sierra, Mallory, and GLM cross-reference numbers, this seal is commonly used during lower unit reseal, shift shaft service, and gearcase repair.
Compatible Applications
| Brand | Engine Range | Engine Type | Application Notes |
|---|---|---|---|
| Yamaha | 40HP-250HP | 2-Stroke | 1984-Up select models |
| Yamaha | F30-F300 | FourStroke | 1995-Up select models |
| Yamaha SHO | VF90-VF250 | FourStroke SHO | 2010-Up select models |
| Mercury | 50HP-450HP | 3-Cylinder, 4-Cylinder, V6, V8 | Select outboard applications |
| Honda | 75HP-90HP | FourStroke | 1997-1998 select models |
Compatible Shift Shaft Seal Carrier
View Pro Marine 25 Inch Shift Shaft Seal Carrier
Replacing the seal when servicing the carrier is recommended to help maintain proper lower unit sealing.
OEM & Aftermarket Cross Reference Numbers
| Brand / Type | Part Numbers |
|---|---|
| Yamaha | 93106-09014-00 |
| Mercury / Quicksilver | 8M0204708, 816461, 816464, 8164641, 82257M, 916464 |
| Honda | 91253-ZW1-003 |
| GLM / Aftermarket | 85223, 85581 |
What This Shift Shaft Seal is Used For
This shift shaft seal is installed in the lower unit to seal around the shift shaft where it passes through the gearcase housing or seal carrier.
A properly sealing shift shaft seal helps keep water out of the lower unit and helps keep gear lubricant inside the gearcase during operation.
Shift shaft seals are commonly replaced during lower unit resealing, water intrusion repair, shift shaft service, or complete gearcase rebuilds.
Replacing worn, hardened, or leaking seals can help protect internal gears, bearings, and shafts from water-contaminated gear lube.
Key Features and Benefits
- Pro Marine aftermarket replacement shift shaft seal
- Fits select Yamaha, Mercury, and Honda outboards
- Direct replacement for Yamaha OEM 93106-09014-00
- Cross references to Mercury 8M0204708, 816461, 816464, 8164641, and 82257M
- Cross references to Honda 91253-ZW1-003
- Helps prevent water intrusion into the lower unit
- Helps prevent gear lubricant leakage
- Common replacement during lower unit reseal service
Shift Shaft Seal Details
- Brand: Pro Marine
- Part Type: Shift Shaft Seal
- Pro Marine Item Number: 7620
- Manufacturer Item: 93106-09014-00
- Application: Select Yamaha, Mercury, and Honda outboard lower units
- System: Lower Unit / Gearcase
- Use: Shift shaft sealing
- Associated Carrier: 65N-45321-00-00
FAQ
What engines does this shift shaft seal fit?
This seal fits select Yamaha 40HP-250HP 2-stroke models, Yamaha F30-F300 four stroke models, Yamaha VF90-VF250 SHO models, Mercury 50HP-450HP outboards, and Honda 75HP-90HP applications.
Is this a genuine OEM seal?
No. This is a Pro Marine aftermarket replacement seal designed to replace multiple OEM and aftermarket part numbers.
What Yamaha OEM number does this replace?
This seal replaces Yamaha OEM part number 93106-09014-00.
What Mercury part numbers does this replace?
This seal cross references to Mercury and Quicksilver part numbers 8M0204708, 816461, 816464, 8164641, 82257M, and 916464.
Should I replace this seal when replacing the shift shaft seal carrier?
Yes. Replacing the seal during carrier service is recommended to help prevent leaks and water intrusion.
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 Terms
7620, 93106-09014-00, 8M0204708, 816461, 816464, 8164641, 82257M, 85223, 85581, 91253-ZW1-003, 916464, Yamaha shift shaft seal, Mercury shift shaft seal, Honda shift shaft seal, Yamaha lower unit seal, Mercury lower unit seal, Honda lower unit seal, Pro Marine shift shaft seal, 65N-45321-00-00, Yamaha 25 inch seal carrier, lower unit reseal parts
18-2054
18-8347
508481
76384
8M0204708
816461
816464
8164641
82257M
85223
85581
9-76116
9-76117
9-76423
91253-ZW1-003
916464
93106-09014-00
09168-10038
5034799
895343T01
895343T02
Mercury Outboard Engine Mounting Hardware Kit
Mercury Engine Mount Bolt Kit - 67755A14
The 67755A14 Engine Mount Bolt Kit provides the primary mounting hardware used to secure a Mercury outboard engine to the transom of a boat.
The kit includes four 5.5-inch mounting bolts, four Nylock nuts and eight washers, providing the hardware needed for a typical four-bolt outboard transom installation.
This kit fits most Mercury outboard engines. Because transom thickness and engine installations can vary, confirm the required bolt length for your boat and engine before ordering.
What is Included
| Component | Quantity |
|---|---|
| 5.5" Engine Mounting Bolts | 4 |
| Nylock Nuts | 4 |
| Washers | 8 |
Bolt Length: 5.5 inches
Bolts: 4
Nylock Nuts: 4
Washers: 8
Application: Mounting Mercury outboard engines to boat transoms
OEM Numbers & Cross References
| Manufacturer | Part Number |
|---|---|
| Mercury Marine | 67755A04 |
| Mercury Marine | 67755A14 |
Fitment
This engine mounting bolt kit is designed to fit most Mercury outboard engines using a standard four-bolt transom mounting arrangement.
The included mounting bolts measure 5.5 inches long. Verify that this bolt length is appropriate for your engine bracket, transom thickness and installation before ordering.
Although this kit fits most Mercury outboard applications, mounting requirements can vary depending on the engine, transom thickness, jack plate, setback bracket or other installation hardware.
Measure and verify the required 5.5-inch bolt length before installation.
What This Part is Used For
Outboard engine mounting bolts pass through the engine's transom brackets and the boat transom to securely attach the outboard to the boat.
The four included bolts provide the primary mechanical connection between the engine and transom. Washers help distribute the clamping load, while the included Nylock nuts help resist loosening during normal boat and engine operation.
When to Replace Outboard Mounting Hardware
Engine mounting hardware should be inspected whenever an outboard is removed, installed, repositioned or serviced at the transom.
Replacement should be considered if the existing mounting hardware shows corrosion, damaged threads, deformation or other signs of deterioration.
Installation Notes
- Verify the 5.5-inch bolt length before installation.
- Inspect the boat transom before mounting the engine.
- Use all required washers and mounting hardware.
- Follow Mercury's recommended mounting locations and installation procedure.
- Follow the appropriate torque specifications for the engine installation.
- Use an appropriate marine sealant around transom penetrations as required by the boat or engine manufacturer's installation procedure.
- Recheck mounting hardware after installation as recommended by the manufacturer.
Key Features
- Complete Mercury outboard engine mounting bolt kit
- Includes four 5.5-inch mounting bolts
- Includes four Nylock nuts
- Includes eight washers
- Hardware for a standard four-bolt transom installation
- Fits most Mercury outboard engines
- Used for mounting an outboard engine to the boat transom
- Cross references Mercury numbers 67755A04 and 67755A14
FAQ
What comes in the 67755A14 engine mounting bolt kit?
The kit includes four 5.5-inch mounting bolts, four Nylock nuts
and eight washers.
How long are the engine mounting bolts?
Each mounting bolt is 5.5 inches long.
How many bolts are included?
Four engine mounting bolts are included for a typical four-bolt outboard
transom installation.
Does 67755A14 fit Mercury outboards?
Yes. This kit fits most Mercury outboard engines. Verify the required
bolt length and mounting configuration for your particular installation.
What is the 67755A14 kit used for?
It is used to securely mount the outboard engine's mounting brackets to
the transom of the boat.
Does this replace Mercury 67755A04?
Yes. 67755A04 is included as a cross-reference for this
engine mounting bolt kit.
Are the nuts and washers included?
Yes. The kit includes four Nylock nuts and eight washers in addition to
the four mounting bolts.
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 in the continental U.S.
- 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 returning parts.
Need help verifying fitment?
Contact Pro Marine
Phone: 941-721-3000
Searchable Part Numbers & Terms
67755A14, 67755A04, Mercury 67755A14, Mercury 67755A04, Mercury engine mount bolt kit, Mercury engine mounting bolts, Mercury outboard mounting bolts, Mercury transom bolts, outboard engine mounting bolts, outboard mounting hardware, outboard transom mounting kit, boat transom bolts, engine to transom bolts, Mercury outboard transom hardware, 5.5 inch engine mounting bolts, four bolt outboard mounting kit, Mercury outboard mounting hardware
67755A14
819514A11
819514A6
0320608
317782
320608
0319787
0769242
317789
319787
769242
0778362
14630
18-4058
5006715