Towing Equipment Trailer Wiring and Electronics

SIERRAMARINE

EMERGENCY CUT-OFF SWITCH

$37.35

SKU: S08C MP40970-1

In Stock
In Stock
Ships by Jun 14
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Sierra MP40970-1 is a 2-wire emergency cut-off switch designed to kill the ignition when the lanyard is pulled.

This switch features a coiled lanyard and is suitable for use with conventional or magneto ignitions. Its unique design keeps the plunger down when the lanyard is connected, seals out moisture, and makes re-connection easier. The unit is designed for panels up to 1/4'' thick and has 4 terminals that allow for the selection of normally open or normally closed circuits.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSIERRAMARINE
Part NumberS08C MP40970-1

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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