Blue Sea 4016 Straight Terminal CableCap - Small

The Blue Sea 4016 Straight Terminal CableCap in small size is a marine-grade cable end protector engineered for boaters and anglers who rely on secure electrical connections in harsh saltwater and freshwater environments. This compact terminal cap seals and insulates battery cable terminals, preventing corrosion, accidental short circuits, and water intrusion—three critical failure points that can disable navigation systems, fish finders, and engine ignition in the middle of the water.

Blue Sea Systems engineered the 4016 with a straight terminal design and compact form factor that fits small-gauge battery cables without bulk or obstruction in tight engine compartments. The cap's durable construction resists UV degradation, salt spray, and temperature extremes typical of marine duty cycles, while the straight configuration ensures alignment with standard battery post terminals.

Serious anglers, charter captains, and cruising boaters benefit most from this terminal cap, especially those operating in coastal or tropical waters where salt exposure accelerates corrosion. Its small size makes it ideal for auxiliary battery systems, secondary circuits, and applications where cable diameter or compartment space demands a low-profile solution that doesn't compromise electrical integrity.