Delivery info

Shipping options are calculated at checkout. Eligible battery products may qualify for local delivery near Walnut, CA.

30 days returns

Return requests must be made within 30 days of delivery. Items must be unopened, unused, and approved with an RMA before return.

FEATURES 

  • Function: Kills the ignition when the lanyard is pulled.
  • Compatibility: Designed for use with Sierra cut-off switches, specifically the MP40970-1 model, and can be used with conventional or magneto ignitions.
  • Safety Features: A unique design keeps the switch's plunger down when the lanyard is connected, which helps seal out moisture and makes reconnection easier.
  • Material & Color: The lanyard is a coiled cord, primarily described as white, with a clip attachment.
  • Durability: Made to meet or exceed OEM specifications in quality and performance, backed by Sierra's limited lifetime warranty.

 

DESCRIPTION

The Sierra Marine MP40990 is a replacement coiled lanyard for an emergency cut-off (kill) switch on a boat. It is designed to stop the engine instantly if the operator is thrown from the helm, preventing runaway situations.

 

RESOURCES

Manufacturer's Technical Support: 1-877-663-8396

 

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