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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.
8M0074845
8M0098264
821400A2
7385A3
7899A2
8196A3
8501A2
8511A3
8790A4
881926T2
9077A4
9104A3
9533A23
9533A26
9533A28
9533A29
9533A3
9533A31
9533A7
9533T28
9533T29
9533T31
9533T35
9533T37
9533T37
9533T38
9533T39
9533T40
818290A8
818290T8
804249T1
6R3-82563-01-00
63D-82563-10-00
63D-82563-11-00
Genuine Mercury OEM Part
Mercury 225/250 EFI FourStroke & Yamaha V4 V6 Driveshaft Collar
The Mercury OEM 45527 Driveshaft Collar is a genuine factory replacement component used within the lower unit cooling system and water pump assembly. This collar replaces Mercury OEM 8886901 and cross references Yamaha OEM 61A-45527-00-00.
Designed and manufactured to Mercury's original specifications, this collar is used on Mercury 225 and 250 EFI FourStroke outboards as well as many Yamaha V4 and V6 applications utilizing the same cooling system design. Genuine OEM parts help ensure factory fit, proper tolerances, and reliable long-term performance.
Compatible Applications
Mercury OEM number 8886901 is used on Mercury 225 and 250 EFI FourStroke models. Yamaha OEM number 61A-45527-00-00 is found across a broad range of Yamaha V4 and V6 outboards including Saltwater Series, EFI, OX66, VMAX, and select four-stroke applications.
| Manufacturer | Common Applications |
|---|---|
| Mercury | 225 EFI FourStroke |
| Mercury | 250 EFI FourStroke |
| 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 and Yamaha used multiple lower unit and water pump configurations across different model years. Always verify your engine serial number and OEM part number before ordering.
This genuine Mercury collar replaces OEM 8886901 and cross references Yamaha OEM 61A-45527-00-00.
OEM & Cross Reference Numbers
| Type | Part Number |
|---|---|
| Mercury OEM | 45527 |
| Mercury OEM | 8886901 |
| Yamaha OEM | 61A-45527-00-00 |
| Sierra | 18-9076 |
| Pro Marine | 45527P |
| GLM | 9076GM |
Alternative Brands Available
Pro Marine 45527P
Popular aftermarket replacement trusted by marine technicians.
View Pro Marine VersionWhy Choose Genuine Mercury OEM Parts?
Mercury OEM components are manufactured to the same specifications used when your outboard was originally built. Genuine factory parts provide the fit, materials, and tolerances Mercury engineers intended for long-term reliability.
- Genuine Mercury OEM component
- Original factory specifications
- Direct replacement for Mercury 8886901
- Cross references Yamaha 61A-45527-00-00
- Factory-correct repair solution
- Designed for water pump and cooling system service
What This Part Is Used For
The driveshaft collar is a component within the lower unit water pump assembly. It helps properly locate and support cooling system components, ensuring correct alignment and operation of the water pump system.
During water pump service, technicians commonly inspect collars, spacers, wear plates, impellers, seals, and housings together to ensure maximum cooling system reliability.
FAQ
Is this a genuine Mercury OEM part?
Yes. This is a genuine Mercury OEM driveshaft collar.
What Mercury engines use OEM 8886901?
Mercury 225 and 250 EFI FourStroke applications commonly use this driveshaft collar.
Does this cross reference Yamaha 61A-45527-00-00?
Yes. Mercury OEM 8886901 cross references directly to Yamaha OEM 61A-45527-00-00.
Do you carry aftermarket alternatives?
Yes. Sierra, Pro Marine, and GLM versions are linked above.
Should this be inspected during water pump service?
Yes. Inspect the collar whenever the lower unit is apart for water pump maintenance and replace it if wear, corrosion, or damage is present.
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
Mercury 45527, 45527, Mercury 8886901, Yamaha 61A-45527-00-00, OEM driveshaft collar, Mercury 225 EFI FourStroke driveshaft collar, Mercury 250 EFI FourStroke driveshaft collar, Yamaha V4 driveshaft collar, Yamaha V6 driveshaft collar, Yamaha OX66 water pump parts, Yamaha VMAX water pump parts, Sierra 18-9076, Pro Marine 45527P, GLM 9076GM, Mercury cooling system parts
61A-45527-00-00
8886901
63P-45987-00-00
850076
15081A93
15081A94
15081A95
809837A96
809837A97
809837A98
809837R96
809837R97
809837T97
74036
8M0169589