Blue Sea Systems 4012 CableCap – Red 0.50 Stud is a Blue Sea Systems busbars, connectors & insulators built for clean, high-current power distribution. Designed for marine environments, it supports reliable performance, clean installation, and long service life in demanding onboard electrical systems.
4012 CableCap – Red 0.50 Stud Features: Insulate stud type connectors on alternators, starters, windlasses and other high amperage devices .
This component is suited for boat electrical upgrades, repairs, and new installations where dependable power management and serviceability matter.
Ideal for builders, refit projects, and serious boat owners who want marine-grade electrical hardware from a trusted brand.














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