Sea-Dog Brass 3-Position Ignition Key Switch – Off / Ignition / Start, Includes 2 Keys
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Classic Brass Ignition Key Switch — Off, Ignition, and Start in One
The Sea-Dog Brass 3-Position Ignition Key Switch is a traditional keyed ignition switch for marine engines and electrical systems requiring a three-position Off / Ignition / Start sequence. Turn the key to Ignition to power the electrical system, then continue to Start to engage the starter solenoid — release and the switch springs back to Ignition. Turn back to Off to cut all power. Two keys are included.
Built from stamped brass with a 13/16" diameter long shaft, this switch mounts through panels up to 1-1/8" thick and connects via three screw terminals. The ignition circuit is rated at 15A at 12V DC; the solenoid circuit handles 30A at 12V DC for reliable starter engagement on single-engine installations.
Key Features
- 3 positions: Off – Ignition – Start (Start is momentary, spring-return to Ignition)
- Ignition circuit: 15A at 12V DC
- Solenoid circuit: 30A at 12V DC
- Stamped brass construction
- 13/16" diameter long shaft
- Maximum panel thickness: 1-1/8"
- Three screw terminal electrical connections
- Includes two keys
Compatible Applications
- Single-engine gasoline marine engine ignition and start circuits
- Outboard motor ignition panel installations
- Inboard and sterndrive engine ignition switching
- Marine helm panels requiring a keyed Off/Ignition/Start switch
- 12V DC marine electrical systems with separate ignition and solenoid circuits
- Replacement ignition switch for panels with 13/16" shaft cutouts
Parts Desk Insights
Best use case: The Sea-Dog Brass 3-Position Key Switch is the right ignition switch for single-engine installations where you want a traditional keyed Off/Ignition/Start sequence with a premium brass appearance. The 30A solenoid rating handles direct solenoid engagement on most single-engine marine applications, and the long shaft accommodates thicker panel materials up to 1-1/8". The brass construction pairs naturally with chrome and stainless hardware on finished helm panels. For multi-engine or accessory-heavy installations requiring a fourth position (accessory), a 4-position key switch may be more appropriate.
Related Sea-Dog ignition switches: For a 4-position key switch with an accessory position, see the Sea-Dog 4-Position Key Switch. For a magneto-style ignition/starter switch, the Sea-Dog 3-Position Magneto Style Ignition/Starter Switch is a popular alternative. For a long-shaft three-position switch with cap, see the Sea-Dog 420355 Long Shaft Three-Position Off/Ignition/Start Switch with Cap.
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.