Ignitions and Electrical› Wiring Components

SIERRAMARINE

EMERGENCY CUT-OFF SWITCH

$56.73

SKU: S08C MP40950

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Sierra MP40950 is a potted emergency cut-off switch designed to kill ignition when its lanyard is pulled. It is suitable for use with conventional or magneto ignitions and seals out moisture.

This switch features 4 terminals, allowing for selection of either a normally open or normally closed circuit. It can accommodate panel thicknesses up to 1/4 inch and is designed to make re-connection easier.

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 MP40950

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.

View Full Return Policy