Sea-Dog Universal Kill Switch — Dual-Circuit Ignition Cut-Off | 354-4204981
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The Sea-Dog Universal Kill Switch is a marine-grade emergency cut-off designed to instantly disconnect battery power when the operator moves away from the helm. Attach the coiled lanyard to your life jacket or wrist while underway — if you fall overboard or leave the controls, the switch trips automatically and stops the engine, keeping the vessel from running unmanned.
Key Features
- Dual-circuit design works with ignition kill or magneto kill wiring configurations
- Weatherproof injection-moulded nylon and Delrin housing
- 1/4 in brass terminals for corrosion-resistant connections
- Coiled lanyard: approximately 15 in coiled / 48 in extended
- 5/8 in mounting hole diameter
- Maximum panel thickness: 3/8 in
- Maximum current draw: 5 A
- Replace lanyard if worn, cut or frayed
- Test before each outing
Intended Use
Suitable for outboard-powered boats, personal watercraft and other small craft where a helm-mounted ignition cut-off is required or recommended. The dual-circuit design makes it compatible with a wide range of engine types without requiring a dedicated model-specific switch.
Fitment Notice
Confirm that your engine's ignition system is compatible with either ignition-kill or magneto-kill wiring before installation. Panel cutout requires a 5/8 in hole and the panel must be no thicker than 3/8 in. Maximum circuit draw must not exceed 5 A. For a dedicated ignition-only model, see the Sea-Dog 4204871 Safety Ignition Kill Switch.
Installation and Use Notes
Mount the switch at the helm within easy reach of the operator. Route and connect wiring according to the dual-circuit diagram supplied with the switch. Attach the lanyard to the operator's life jacket or wrist before getting underway. Inspect the lanyard before each use and replace it at the first sign of wear or damage.
Alternate/Superseded Part Numbers
- Part number: 354-4204981
- Brand: Sea-Dog Line
- Mounting hole: 5/8 in diameter
- Max panel thickness: 3/8 in
- Max current: 5 A
- Lanyard: 15 in coiled / 48 in extended
- Weight: 86 g / 3.0 oz
Compatible & Related Products
Parts Desk Insight
This switch covers the widest range of applications because it supports both ignition-kill and magneto-kill wiring. If a customer knows their engine type, the dedicated Sea-Dog 4204871 may be a cleaner fit for ignition-only systems. Always recommend replacing the lanyard at the same time as the switch — a new switch with a worn lanyard defeats the purpose.
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.