Blue Sea 4001 Rotating Single-Entry CableCap – Red/Black (Pair)

The Blue Sea 4001 Rotating Single-Entry CableCap is a compact protective cover for battery terminals and wing-nut posts that prevents accidental shorting and helps reduce corrosion on marine and automotive systems. Sold as a red/black pair, these CableCaps rotate 360 to allow cable entry from any angle while keeping connections insulated and clearly identified.

Key Features

• 360 Rotating Top: Rotates freely to allow cable entry at any angle, making installation easier in tight or awkward spaces.
• Universal Fit: Designed to fit common battery cable sizes and batteries with integral marine wing nut posts for broad compatibility.
• Color-Coded Pair: Red and black caps provide instant polarity identification to reduce wiring errors during installation and maintenance.
• Durable Insulation: Non-conductive material helps protect terminals from accidental contact and environmental exposure in marine environments.

Ideal for boat battery banks, RVs, and automotive applications, the Blue Sea CableCap is a simple, low-profile solution for protecting busbars and battery terminals. Blue Sea Systems is a trusted name in marine electrical components; these caps are chosen by technicians and DIYers who need reliable terminal protection that won’t interfere with terminal-mounted accessories or chargers.

Packaged dimensions are approximately 6 x 3 x 3 inches and the pair weighs about 0.5 lb. Model number 4001. Compatible with Blue Sea busbars and standard battery terminals. For long-term marine use, inspect caps periodically and replace if signs of wear are observed.