Sierra Starter Solenoid – Mercury Outboards, Grounded Base | 47-5817
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You have 30 days to request a return. All sale items are final sale.
Sierra Starter Solenoid – Mercury Outboards, Grounded Base | 47-5817
Restore reliable cranking to your Mercury outboard with this Sierra replacement starter solenoid. Featuring a grounded base design, it’s the correct configuration for Mercury outboard applications that require a grounded (non-isolated) solenoid mount — an important distinction when sourcing a replacement. Built to OEM specifications, it delivers dependable 12V switching performance and is designed for direct-fit installation.
Compatible Applications
- Mercury outboard engines requiring a grounded-base starter solenoid
- Replaces Mercury OEM: 89-96158T1
- Refer to Sierra’s current application guide to confirm fitment for your specific engine model and year
Key Features
- Grounded base design — correct configuration for applicable Mercury outboards
- Built to OEM specifications for reliable 12V switching performance
- Direct-fit replacement
- Compact and lightweight for easy installation
Parts Desk Insights
The most common mistake when ordering a Mercury solenoid is getting the base type wrong — isolated vs. grounded. This 47-5817 uses a grounded base, while the Sierra 47-5816 uses an isolated base. Check your original solenoid’s mounting before ordering to make sure you get the right one. If the solenoid tests good but 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 for additional options.
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.