Blue Sea Systems CableCap Black 0.50 Stud

The Blue Sea Systems CableCap is a simple, snap-on PVC insulator that covers a single exposed stud terminal — on an alternator, starter, windlass motor, or any other high-amperage connection point where a bare terminal would otherwise be exposed to accidental contact or corrosion.

Key features

• Black PVC construction
• Fits cable sizes 1, 2, 1/0, 2/0 AWG
• Snaps over the terminal and cable connection to insulate it
• Color-coded — red for positive, black for negative or ground — for quick circuit identification at a glance

This is a low-cost, high-value part of finishing any high-amperage connection properly: an exposed stud terminal on a starter or windlass is a short-circuit risk if a tool or stray cable ever brushes across it, and this cap eliminates that risk in seconds without any special tools.

Match the cap to your cable's actual gauge before ordering — the CableCap Stud family covers everything from small 10-18 AWG accessory wiring up to heavy 4/0 AWG battery cable, and each size is a distinct part number, not a universal fit. Keep a couple of spares on hand in the sizes your boat actually uses, since these caps are easy to misplace during a haul-out rewiring project.

These caps are a common finishing touch on any project that adds or upgrades a starter, alternator, or windlass connection, and a quick, inexpensive way to bring an older installation up to current insulation practice without redesigning the whole connection point. Because the body simply snaps over the finished connection, it's just as easy to remove for periodic terminal inspection as it is to install in the first place.