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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.
858935
0433226
0769881
433226
67F-43880-00-00
769881
8M6007527
8M6007565
8M6014147
6D8-24410-10-00
68V-24410-00-00
880890T1
6E5-44312-00-00
888688
Sierra Marine Water Pump Component
Yamaha 90-300HP & Mercury FourStroke Water Pump Washer
The Sierra 18-90201 Water Pump Washer is a direct replacement for Yamaha OEM 90201-22M01-00 and Mercury OEM 8556822. This washer is used within the lower unit water pump assembly and serves as a critical spacing component between water pump components and the driveshaft assembly.
Commonly replaced during impeller service, water pump rebuilds, and lower unit maintenance, this washer is used across a large range of Yamaha F-Series, VF-Series, VMAX, OX66, HPDI, Saltwater Series, and Mercury FourStroke outboards.
Compatible Applications
Yamaha OEM 90201-22M01-00 is used on a wide range of Yamaha outboards from 90HP through 300HP. Mercury OEM 8556822 cross references to the same washer used on Mercury FourStroke applications derived from Yamaha platforms.
| Engine Family | Common Applications |
|---|---|
| Yamaha F-Series | F90, F115, F150, F175, F200, F225, F250, F300 |
| Yamaha VF-Series SHO | VF90, VF115, VF150, VF175, VF200, VF225, VF250 |
| Yamaha VMAX | 150HP, 175HP, 200HP, 225HP, 250HP, 300HP |
| Yamaha OX66 | 150HP, 200HP, 225HP, 250HP |
| Yamaha HPDI | 150HP, 200HP, 225HP, 250HP, 300HP |
| Yamaha Saltwater Series | Various 115HP-250HP Applications |
| Mercury FourStroke | 225 EFI FourStroke, 250 EFI FourStroke |
Yamaha used multiple water pump assemblies across different model years and gearcase designs. Always verify your OEM part number before ordering.
This washer replaces Yamaha OEM 90201-22M01-00 and Mercury OEM 8556822.
OEM & Cross Reference Numbers
| Type | Part Number |
|---|---|
| Sierra | 18-90201 |
| Yamaha OEM | 90201-22M01-00 |
| Mercury OEM | 8556822 |
| Mercury OEM | 12-8556822 |
| GLM | 90201GM |
Alternative Brand Available
GLM 90201GM Water Pump Washer
We also stock the GLM 90201GM version of this water pump washer. It replaces the same Yamaha and Mercury OEM numbers and fits the same applications.
What This Part Is Used For
This washer is installed within the water pump assembly and functions as a spacing and load-distribution component. Proper washer thickness and placement are important for maintaining correct water pump assembly geometry and component alignment.
During water pump service, technicians commonly inspect and replace washers, spacers, wear plates, impellers, housings, and seals together to help restore cooling system performance.
Why Replace a Water Pump Washer?
- Prevents excessive wear on water pump components
- Maintains proper spacing within the water pump assembly
- Helps ensure correct impeller and housing alignment
- Recommended during major water pump rebuilds
- Inexpensive preventative maintenance item
Sierra 18-90201 Features
- Direct replacement for Yamaha 90201-22M01-00
- Direct replacement for Mercury 8556822
- Fits Yamaha F90-F300 applications
- Fits Yamaha VF-Series SHO models
- Fits Yamaha VMAX, OX66, HPDI, and Saltwater Series engines
- Compatible with Mercury 225 and 250 EFI FourStroke models
- Quality Sierra Marine aftermarket replacement
FAQ
What OEM numbers does Sierra 18-90201 replace?
Yamaha 90201-22M01-00 and Mercury 8556822.
What Yamaha engines use this washer?
Common applications include Yamaha F90-F300, VF-Series SHO, VMAX, HPDI, OX66, and Saltwater Series outboards.
Does this fit Mercury outboards?
Yes. Mercury OEM 8556822 is commonly used on Mercury 225 and 250 EFI FourStroke applications.
Should this washer be replaced during impeller service?
It should always be inspected and replaced if wear, scoring, corrosion, or damage is present.
Do you carry another brand?
Yes. We also stock the GLM 90201GM version linked above.
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 required before return.
Searchable Terms
Sierra 18-90201, 18-90201, Yamaha 90201-22M01-00, Mercury 8556822, Mercury 12-8556822, water pump washer, driveshaft washer, Yamaha F250 water pump parts, Yamaha F300 water pump parts, Yamaha SHO water pump parts, Yamaha VMAX water pump washer, Yamaha OX66 water pump washer, Yamaha HPDI water pump washer, Mercury FourStroke water pump parts, GLM 90201GM
8556822
90201-22M01-00
8M0138680
843224
18-6836
6CJ-43880-10-00
6CJ-43880-11-00
6CJ-43880-12-00
6CJ-43880-13-00
6C5-43880-00-00
6C5-43880-01-00
6257
8M6007564
18286A25
18286A27
18286A4
18286A40
8M0042301
850691
856990
896620
Pro Marine Cooling System Component
Yamaha V4 V6 115-300HP & Mercury 225/250 Driveshaft Collar
The Pro Marine 45527P Driveshaft Collar is a quality aftermarket replacement for Yamaha OEM 61A-45527-00-00 and Mercury OEM 8886901. This component is used within the lower unit water pump assembly on a wide range of Yamaha V4 and V6 outboards as well as Mercury 225 and 250 EFI FourStroke models.
Designed to provide dependable fit and performance, the Pro Marine 45527P is an excellent replacement during water pump rebuilds, cooling system repairs, and preventative maintenance service.
Compatible Applications
Yamaha OEM number 61A-45527-00-00 is used across numerous Yamaha V4 and V6 outboards including EFI, Saltwater Series, OX66, HPDI, VMAX, and select four-stroke applications. Mercury OEM 8886901 is used on Mercury 225 and 250 EFI FourStroke outboards.
| Manufacturer | Common Applications |
|---|---|
| Yamaha | 115HP, C115, S115 |
| Yamaha | 130HP, L130 |
| Yamaha | 150HP, C150, D150, DX150, FL150, LF150, LX150, SX150, VX150, VZ150, Z150 |
| Yamaha | 175HP Models |
| Yamaha | 200HP, F200, LF200, LX200, SX200, VX200, VZ200, Z200 |
| Yamaha | 225HP, F225, LF225, LX225, VX225, V225, VMAX 225, OX66 225 |
| Yamaha | 250HP, L250, LX250, SX250, VX250, VZ250, Z250, OX66 250 |
| Yamaha | 300HP, LZ300, VZ300, Z300 |
| Mercury | 225 EFI FourStroke |
| Mercury | 250 EFI FourStroke |
Yamaha utilized this driveshaft collar across multiple V4 and V6 platforms over numerous model years. Always verify your engine serial number and OEM part number before ordering replacement cooling system components.
This Pro Marine collar replaces Yamaha OEM 61A-45527-00-00 and Mercury OEM 8886901.
OEM & Cross Reference Numbers
| Type | Part Number |
|---|---|
| Pro Marine | 45527P |
| Yamaha OEM | 61A-45527-00-00 |
| Mercury OEM | 8886901 |
| Sierra | 18-9076 |
| GLM | 9076GM |
| Mercury OEM Part | 45527 |
Other Brands Available
Mercury OEM 45527
Genuine Mercury OEM driveshaft collar manufactured to factory specifications.
View OEM Version
GLM 9076GM
Alternative aftermarket option from GLM Marine for the same applications.
View GLM VersionWhy Choose Pro Marine Parts?
Pro Marine replacement parts are trusted by marine technicians, repair facilities, and boat owners throughout the industry. They provide dependable fitment and performance while offering an economical alternative to OEM components.
- Quality aftermarket replacement
- Direct replacement for Yamaha 61A-45527-00-00
- Direct replacement for Mercury 8886901
- Designed for marine cooling system applications
- Excellent choice for preventative maintenance and repairs
- Cost-effective alternative to OEM pricing
What This Part Is Used For
The driveshaft collar helps maintain proper alignment within the lower unit water pump assembly. It works together with the impeller housing, wear plate, spacer components, and driveshaft to ensure proper cooling system operation.
During water pump service, many technicians replace collars and related components together to restore the cooling system to proper operating condition.
Pro Marine 45527P Features
- Fits Yamaha V4 and V6 applications from 115HP through 300HP
- Fits Mercury 225 and 250 EFI FourStroke models
- Replaces Yamaha OEM 61A-45527-00-00
- Replaces Mercury OEM 8886901
- Ideal for water pump rebuilds and lower unit service
- Corrosion-resistant marine-grade construction
FAQ
What OEM numbers does Pro Marine 45527P replace?
It replaces Yamaha 61A-45527-00-00 and Mercury 8886901.
What engines commonly use this collar?
Many Yamaha V4 and V6 outboards from 115HP through 300HP as well as Mercury 225 and 250 EFI FourStroke applications.
Is this an OEM Mercury part?
No. This is a Pro Marine aftermarket replacement. The genuine Mercury version is linked above.
Do you carry other brands?
Yes. We also stock Mercury OEM, Sierra, and GLM versions of this driveshaft collar.
Should I replace this during a water pump rebuild?
If wear, corrosion, or damage is found during inspection, replacement is recommended while the lower unit is apart.
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 required before return.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
45527P, Pro Marine 45527P, Yamaha 61A-45527-00-00, Mercury 8886901, Yamaha V4 driveshaft collar, Yamaha V6 driveshaft collar, Yamaha OX66 water pump parts, Yamaha VMAX cooling system parts, Yamaha 225 driveshaft collar, Yamaha 250 driveshaft collar, Mercury 225 EFI FourStroke parts, Mercury 250 EFI FourStroke parts, Sierra 18-9076, GLM 9076GM, Mercury OEM 45527
61A-45527-00-00
8886901
6BR-82563-01-00