Mercury MerCruiser Propeller Nut 8M0105210
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Mercury / MerCruiser Quicksilver Propeller Nut ā 8M0105210
The Mercury Quicksilver 8M0105210 Propeller Nut is a genuine OEM propeller retaining nut used on select MerCruiser Bravo sterndrive systems. It secures the propeller assembly to the propeller shaft, ensuring the propeller remains firmly attached during operation.
Key Specifications
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Part Number: 8M0105210
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Component Type: Propeller retaining nut
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Socket Size: 2-3/4 in prop wrench
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OEM Brand: Mercury Marine / Quicksilver
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Former Part Number: 11-859131
Compatible Drives / Applications
Commonly used on MerCruiser Bravo sterndrives, including:
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Bravo One
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Bravo Two
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Bravo Three
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Bravo Four S
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Zeus pod drives (front prop application)
On Bravo III drives, this nut typically secures the forward (inner) propeller, which is installed first on the prop shaft.
Function
The propeller nut threads onto the propeller shaft to lock the propeller in place. Proper installation helps ensure:
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Secure propeller retention
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Proper propeller alignment
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Reliable power transfer from the drive to the propeller
Using the correct OEM nut helps maintain proper torque and prevents loosening during operation.
Service Notes
A worn or damaged propeller nut may cause:
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Loose or vibrating propeller
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Difficulty maintaining proper propeller torque
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Increased risk of propeller damage or loss
Always inspect prop hardware during propeller service or replacement.
ā ļø Fitment Tip:
Always verify compatibility using the sterndrive model and serial number. Propeller hardware varies between Bravo drive models and propeller configurations.
OEM parts ship same or next day for fast Canada wide shipping.
Technical Specifications:
- Type: Propeller nut
- Compatible with: Mercury MerCruiser sterndrive systems
- Part Number: 8M0105210
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3ā4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us ā and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity ā and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.