Sierra MP40960 Emergency Engine Cut Off Switch with Lanyard

The Sierra MP40960 is a universal emergency engine cut-off switch designed for marine applications with conventional or magneto ignition systems. This critical safety device immediately stops the engine when the operator is separated from the controls, helping prevent runaway boats and potential accidents.

Key Features:

• Compatible with both conventional and magneto ignition systems
• Includes lanyard that attaches to operator
• Spring-loaded plunger mechanism stays depressed when lanyard is connected
• Sealed construction prevents moisture intrusion for reliable operation
• Simple two-wire installation
• Meets Coast Guard requirements for engine cut-off devices

When the lanyard is pulled free—whether from an operator falling overboard or moving too far from the controls—the plunger releases and immediately cuts power to the ignition system, stopping the engine. The weather-resistant design ensures dependable performance in harsh marine environments.