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Sierra Marine Cooling System Component
Yamaha V4 V6 115-300HP & Mercury 225/250 Driveshaft Collar
The Sierra 18-9076 Driveshaft Collar is a direct replacement for Yamaha OEM 61A-45527-00-00 and Mercury OEM 8886901. This collar is used in the water pump assembly on numerous Yamaha V4 and V6 outboards as well as Mercury 225 and 250 EFI FourStroke applications.
During water pump service, lower unit repairs, or cooling system rebuilds, replacing worn collars can help maintain proper component alignment and reliable cooling system operation.
Compatible Applications
Yamaha OEM number 61A-45527-00-00 is used across a large range of Yamaha V4 and V6 outboards including Saltwater Series, EFI, OX66, HPDI, VMAX, and select four-stroke models. Mercury OEM 8886901 cross references to Mercury 225 and 250 EFI FourStroke applications.
| 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, OX66 225, VMAX 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 used this collar across numerous V4 and V6 platforms over multiple years and engine families. Always verify your engine serial number and OEM part number before ordering.
This Sierra collar replaces Yamaha OEM 61A-45527-00-00 and Mercury OEM 8886901.
OEM & Cross Reference Numbers
| Type | Part Number |
|---|---|
| Sierra | 18-9076 |
| Yamaha OEM | 61A-45527-00-00 |
| Mercury OEM | 8886901 |
Available in Multiple Brands
OEM Yamaha 45527
Genuine Yamaha factory replacement for customers who prefer OEM parts.
View OEM Version
Pro Marine 45527P
Popular aftermarket replacement trusted by marine technicians and repair shops.
View Pro Marine Version
GLM 9076GM
Alternative aftermarket option from GLM Marine for the same Yamaha and Mercury applications.
View GLM VersionWhat This Part Is Used For
The driveshaft collar is part of the lower unit cooling system assembly and works with the water pump housing, wear plate, impeller, and related components. Proper spacing and alignment are critical to water pump performance and cooling system efficiency.
Many technicians replace collars whenever major water pump service is performed, particularly on high-hour engines or saltwater-operated boats.
Why Replace a Driveshaft Collar?
- Corrosion may affect proper component fitment
- Wear can impact water pump assembly alignment
- Often serviced during water pump rebuilds
- Helps maintain proper cooling system operation
- Ideal preventative maintenance item during lower unit service
Sierra 18-9076 Features
- Direct replacement for Yamaha 61A-45527-00-00
- Direct replacement for Mercury 8886901
- Fits many Yamaha V4 and V6 applications from 115HP-300HP
- Compatible with Mercury 225 and 250 EFI FourStroke models
- Quality Sierra Marine aftermarket construction
- OEM, Pro Marine, and GLM alternatives available above
FAQ
What OEM numbers does Sierra 18-9076 replace?
Yamaha 61A-45527-00-00 and Mercury 8886901.
What Yamaha engines commonly use this collar?
Many Yamaha 115HP, 130HP, 150HP, 175HP, 200HP, 225HP, 250HP, and 300HP V4 and V6 applications including OX66, VMAX, EFI, Saltwater Series, and select four-stroke models.
Does this fit Mercury outboards?
Yes. Mercury 225 and 250 EFI FourStroke models commonly use Mercury OEM 8886901.
Do you carry OEM and aftermarket alternatives?
Yes. OEM Yamaha, Pro Marine, and GLM versions are linked above.
Should I replace this during water pump service?
If wear, corrosion, or damage is present, 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 and unused.
- Installed parts are not returnable.
- Return authorization required before return.
Searchable Terms
Sierra 18-9076, 18-9076, Yamaha 61A-45527-00-00, Mercury 8886901, Yamaha V4 driveshaft collar, Yamaha V6 driveshaft collar, Yamaha VMAX water pump parts, Yamaha OX66 cooling system parts, Yamaha 225 driveshaft collar, Yamaha 250 driveshaft collar, Mercury 225 EFI FourStroke parts, Mercury 250 EFI FourStroke parts, Pro Marine 45527P, GLM 9076GM, OEM Yamaha 45527
8886901
9-43712
94148
835290A1
835290Q1
850515
8M0161546
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8M0168208
18-3750
21110
31037
509034
52699
775418
984-105
824431