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Mercury Outboard Parts
Shop Mercury outboard motor parts by system, including cooling, fuel delivery, electrical, internal engine components, lower unit parts, and routine service items. Browse OEM and replacement Mercury marine parts to support maintenance, repair, and rebuild projects.
Shop by System
- Complete Powerheads
- Control Cables & Boxes
- Cooling System
- Cowlings & Components
- Electrical System
- Engine Oil
- Engine Rebuild Kits
- Fuel & Carburetion System
- Intake System
- Internal Engine Components
- Lower Unit Components
- Oiling System
- Paints
- Service & Oil Change Kits
- Service Manuals
- Steering Systems
- Throttle Components
- Transom & Midsection
- Trim System
- Wizard Performance Parts
Common Mercury Outboard Model References
This category supports many popular Mercury outboards across a wide horsepower range. Always confirm your model and serial number for best fitment.
- Portable & Midrange: 2.5HP–60HP (2-stroke & FourStroke)
- Performance: Pro XS and EFI platforms (75HP–300HP)
- Direct Injection: Optimax models (75HP–250HP)
- Premium Offshore: Verado models (135HP–400HP)
- Commercial: SeaPro models (commonly 75HP–300HP)
Always confirm your exact horsepower, model year, and serial number to ensure proper part compatibility before ordering.
15400-PFB-004
15400-PFB-014
15400-PJ7-015
15400-PM3-405
15400-ZZ3-003
3BJ076150
3BJ076150M
3R0076150
3R0076150M
3R0076151
3R0076151M
5GH-13440-00-00
5GH-13440-10-00
5GH-13440-30-00
5GH-13440-70-00
5GH-13440-71-00
5GH-13440-72-00
5041144
8M0008397
8M0065103
8M0065104
8M0154776
8M0154778
8M0162829
8M0162830
8M0162831
8M0162832
822626
822626A1
822626A2
822626B12
822626K03
822626K04
822626Q03
822626Q04
822626Q05
822626Q1
822626Q2
822626T1
822626T11
822626T12
822626T2
8226261
851847A02
877768K01
8M0103289
883202T02
883202T1
18-2655
508534
775426
87540
89238A2
9-74201
18-2653
508457
55682A1
775421
87520
9-74203
17264C1
17264T2
818298A1
826134
826134Q
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
888733T1
32437A3
37433A1
42579A4
44292A4
48747A3
57234A3
58618A4
60367A1
60367A4
64141A11
69222A3
73802A3
73804A3
78400A2
96148A5
96148A8
96148BK8
96148B5
96148B8
96148T8