Marinco 14/3 Locking Extension Cord - 15A - 25'

The Marinco 14/3 Locking Extension Cord – 15A – 25' is purpose-built for reliable shore power connectivity on boats, RVs, and marine equipment where safety and durability matter. After years running between dock and open water, any experienced captain knows that a loose or corroded power connection can mean the difference between a functioning galley and a spoiled catch. This marine-grade extension cord solves that problem with a universal slide-button locking mechanism on the female connector end that prevents accidental disconnection during rough water or while maneuvering alongside the dock.

Built with marine-grade 14/3 SJTOW cable, this cord handles the moisture, salt spray, and temperature swings typical of saltwater and freshwater environments. The 15-ampere rating supports standard galley appliances, battery chargers, and cabin climate control systems without overload risk. A lighted female end connector provides instant visual confirmation that power is flowing—essential when troubleshooting electrical issues at night or in low-light conditions on the water. The 25-foot length gives you flexibility in dock positioning without running dangerously thin on cable.

Boaters who've invested in proper shore power infrastructure—and those who frequently move between slip locations—rely on locking connectors to eliminate the guesswork. The Marinco 14/3 cord works with any standard 15A shore power pedestal and integrates seamlessly into existing marine electrical systems. Whether you're provisioning a cruising sailboat, powering a fishing cabin cruiser, or maintaining systems on a moored houseboat, this cord's robust construction and failsafe locking design deliver years of worry-free operation in harsh marine conditions.