Mercury MerCruiser Quicksilver O-Ring Kit 8M0164166
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Mercury / MerCruiser Quicksilver O-Ring Kit ā 8M0164166
The Mercury Quicksilver 8M0164166 O-Ring Kit is a genuine OEM seal kit used on select Mercury and MerCruiser components. It contains replacement O-ring seals designed to prevent fluid leaks and maintain proper sealing in marine engine systems.
Key Details
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Part Number: 8M0164166 (also listed as 25-8M0164166)
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Component Type: O-ring seal kit
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OEM Brand: Mercury Marine / Quicksilver
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UPC: 678633122989
Typical Application
This kit is commonly used for trim tab or related hydraulic sealing applications in Mercury marine systems.
O-rings are used to:
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Seal hydraulic or fluid passages
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Prevent oil or fluid leaks
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Maintain proper pressure inside assemblies
They are often replaced during maintenance when servicing trim or hydraulic components.
Features
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Genuine Mercury OEM sealing components
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Designed for exact fit and proper compression
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Made from marine-grade rubber compounds resistant to oil, heat, and corrosion
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Used during routine maintenance or component rebuilds
Service Tip
O-rings should be replaced whenever a component is disassembled because reused seals can:
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Lose elasticity
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Fail to reseal properly
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Cause fluid leaks or pressure loss
Using OEM kits ensures the correct size and material specification for marine environments.
* not exactly as shown
ā ļø Fitment Tip:
Always confirm compatibility using the engine or component serial number in the Mercury parts catalog. Mercury uses many O-ring sizes that appear similar but are designed for specific assemblies.
Shipping: Ships same or next day for fast Canada wide shipping.
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.