Sierra Starter Solenoid – Mercury Outboards | 47-5816
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You have 30 days to request a return. All sale items are final sale.
Sierra Starter Solenoid – Mercury Outboards | 47-5816
A faulty solenoid is one of the most common reasons a Mercury outboard won’t crank — and this Sierra replacement makes the fix quick and straightforward. Built to OEM specifications, it delivers reliable 12V switching performance and is designed as a direct-fit replacement for a wide range of Mercury outboard engines.
Compatible Applications
- Mercury outboard engines requiring a starter solenoid replacement
- Replaces Mercury OEM: 89-96158T
- Refer to Sierra’s current application guide to confirm fitment for your specific engine model and year
Key Features
- Built to OEM specifications for reliable cranking performance
- 12V operation
- Direct-fit replacement design
- Compact and lightweight for easy installation
Parts Desk Insights
This solenoid is the first thing to check when your Mercury outboard clicks but won’t turn over and the battery tests good. It’s a straightforward, low-cost fix that’s often overlooked in favour of replacing the starter motor. If the solenoid tests fine and the engine still won’t crank, the next step is the starter motor itself — see the Sierra New Marine Starter for Mercury V6 & V8 Outboards or browse our full range of Mercury starter solenoids if you need an alternative configuration. For OEM Quicksilver options, the Mercury MerCruiser Quicksilver Starter Solenoid 8M0185149 is also available.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 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.