Kill-Switch Lanyards & Wireless Engine Cut-Offs
An engine cut-off switch link stops the engine if you leave the helm unexpectedly. Choose between a classic coiled lanyard and a wireless fob, and make sure it fits your switch.
What to Look For
Fit comes first: a link that doesn't match your switch is useless. Then decide how much freedom of movement you need.
Switch compatibility
Lanyard clips differ between engine makers. Match the clip to your switch or carry a universal set.
Corded vs wireless
Coiled lanyards are simple and cheap. Wireless fobs let you move around the boat but need batteries and pairing.
Attachment point
The link must attach to you, your clothing or your life jacket. Choose a clip or band you'll actually wear.
Our Picks
A wireless system, an inexpensive universal lanyard set to keep aboard as a spare, and a portable wireless option.
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Picks are based on manufacturer-published specifications and the buying criteria on this page, not on paid placement or hands-on lab testing. Check the listing for the current model, size and fit before you buy.
How to Choose a Kill-Switch Lanyard or Wireless Cut-Off
An engine cut-off switch (ECOS) shuts down the propulsion engine when the operator is displaced from the helm. The engine cut-off switch link (ECOSL) is what connects you to that switch, traditionally a coiled lanyard with a clip at the switch end and a snap at your end. The U.S. Coast Guard notes that the link must be attached to the operator, the operator's clothing or the operator's life jacket, and that it can be a lanyard or an electronic fob.
Know whether the rule applies to you
Under federal law, operators of covered recreational vessels (under 26 feet, with an engine capable of 115 pounds or more of static thrust, about 3 horsepower) must use the link when the switch is installed and the boat is on plane or above displacement speed. There are exceptions, for example when the main helm is inside an enclosed cabin. Our kill switch lanyard guide covers the details and links to the Coast Guard FAQ. Some states have their own rules too, so check your state boating agency.
Corded lanyards: simple and inexpensive
A coiled lanyard has no batteries, no pairing and nothing to update. The trade-off is reach: you're tethered to the helm, which some operators find limiting when they need to move to the bow or help a passenger. The most important buying detail is the clip. Switch designs vary between engine and control makers, and a clip that doesn't seat properly won't let the engine run (or won't pull free when it should). Universal kits include several clip shapes; keep one aboard as a spare even if you have the original.
Wireless systems: freedom to move
Wireless ECOS systems use a small fob worn by the operator and a receiver connected to the boat. Depending on the design, the engine stops if the fob is submerged or moves out of range. The Coast Guard's 2021 announcement noted that wireless devices are approved for use and available both aftermarket and as factory options. Before buying, check how the system connects to your boat (some wire into the existing switch circuit, others work through it), what battery the fob uses and how the system warns you about low battery. Some systems support extra fobs that can alarm when a passenger goes overboard.
Installation and testing
Follow the manufacturer's instructions, and if a system needs wiring into your engine's stop circuit and you're not comfortable with marine electrical work, have a qualified marine technician do it. Whatever you use, test it regularly: with the engine running at idle in a safe place, pull the lanyard or trigger the fob and confirm the engine stops.
Wear it where it can't snag
Clip the snap to a belt loop, a D-ring on your life jacket or a wrist band. Avoid clipping to anything that could tear away before the clip pulls free, and keep the coil free of tangles around the wheel or throttle.