Exterior Components› Body Panels and Components

SIERRAMARINE

CIRCUIT BREAKER FLUSH MOUNT 40A

$74.92

SKU: S08C CB50540

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

Easy — 1–2 hours

Description

The Sierra CB50540 is a 40A marine circuit breaker designed for flush mounting. It features 1/4" stainless steel studs for easy installation and can be used as both a switch and circuit protection. The breaker has a 'Trip Free' feature, preventing it from being held 'ON', and an ignition-protected design for safe use below deck.

Fitment

Fitment Guaranteed

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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 CB50540

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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