Exterior Components Body Panels and Components

BLUE SEA

SWITCH BATTERY E ON/OFF

$55.28

SKU: B03C 9003E-BSS

In Stock
In Stock
Ships by Jun 13
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Blue Sea Systems BS-9003E is a single-circuit, ON-OFF battery switch designed for marine applications. It features a copper contact material and a screw connector type, with an operation mode of ON-OFF. This switch is rated for 600 Amps and is ignition protected, making it safe for installation aboard gasoline-powered boats.

Fitment

Fitment Guaranteed

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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

BrandBLUE SEA
Part NumberB03C 9003E-BSS

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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