Mercury MerCruiser Quicksilver Solenoid 8M0185622
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Mercury MerCruiser / Quicksilver Solenoid – 8M0185622
Ensure reliable engine starting and trim operation with the genuine Mercury Marine / Quicksilver 8M0185622 Solenoid. This OEM 12-volt starter or power-trim solenoid relay controls electrical current to the starter motor or trim pump, allowing the engine to start or the drive to trim smoothly when activated from the helm controls.
Designed with a stepped mounting plate, the solenoid provides stable installation and dependable electrical switching for many Mercury outboards and MerCruiser sterndrive systems.
Key Features
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Genuine Mercury / Quicksilver OEM solenoid relay
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12-volt electrical solenoid for starter or power-trim systems
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Stepped mounting plate design for secure installation
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Supports reliable engine starting and trim operation
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Built to withstand marine vibration, moisture, and heat
Part Details
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OEM Part Number: 8M0185622
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Voltage: 12 V
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Product Type: Starter / power trim solenoid relay
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UPC: 745061219700
Superseded / Cross-Reference
This solenoid replaces several earlier Mercury part numbers, including:
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89-96158T
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89-846070
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96158 / 96158T
Aftermarket equivalents include Sierra 18-5817 and ARCO SW058.
Compatible Mercury / MerCruiser Applications
Commonly used on:
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Mercury and Mariner outboard engines
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MerCruiser sterndrive engines
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Trim pump systems with plastic reservoirs (often requiring two solenoids)
Exact compatibility varies by engine model, trim pump configuration, and serial number range.
Function
The solenoid acts as a high-current electrical relay. When the ignition key or trim switch is activated, it connects battery power to the starter motor or trim pump, allowing the engine to crank or the drive to adjust trim angle.
Important Compatibility Note
Electrical components may vary by engine model, trim system design, and serial number range. Always verify compatibility using the engine serial number or existing solenoid part number before ordering.
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 3–4 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 — 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 — 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.