Blue Sea Systems  |  SKU: BSS-4001

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

Regular price $10.29 CAD
Ships By Sat, August 22 Free Canada Shipping over $120

Why Shop With Us

✔ Locally owned in Nanaimo, BC
✔ Trusted by boaters and anglers since 1986
✔ Knowledgeable staff with real on-the-water experience
✔ Large in-stock selection of marine & fishing gear

We’re here to help you get the right gear the first time.

Shipping & Pickup

We ship across Canada with fast, reliable delivery from our Nanaimo location.

✔ Trusted since 1986
✔ Fast Canada-wide shipping
✔ Expert support available

Need it sooner or have questions? Our team is here to help.

Returns & Warranty

We stand behind the products we sell and want you to shop with confidence.

✔ Easy returns on eligible items
✔ Manufacturer warranties supported
✔ In-store support available if you need help

If something isn’t right, reach out and we’ll make it right.

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.