Blue Sea Systems 4011 CableCap Stud Insulator, Black, 8-4 AWG, 2-Pack

The Blue Sea Systems 4011 CableCap Stud Insulator is a black insulating cap designed to cover stud-type connectors on high-amperage marine electrical equipment. It insulates studs on alternators, starters, windlasses, and other high amperage devices, helping to prevent accidental shorts from a stray tool or cable contacting a live stud terminal. Sized for 8 AWG to 4 AWG cable, the 4011 slips over the connection point to shield the exposed metal while keeping the terminal accessible for service.

Each package contains 2 insulator caps, making it easy to cover a matched pair of connections in one purchase. The black color allows it to be used for negative or ground-side connections, and Blue Sea Systems also offers the same 8-4 AWG size in red (part number 4010) for color-coding positive connections. At just 0.05 pounds, the 4011 is a lightweight, low-cost addition to any 12-volt or 24-volt marine electrical installation where stud connectors are used.

Specifications

• Brand: Blue Sea Systems
• Manufacturer Part Number: 4011
• Cable Size (AWG): 8-4
• Color: Black
• Package Quantity: 2
• Weight: 0.05 pounds

Frequently Asked Questions

What cable size does the Blue Sea Systems 4011 fit? The 4011 CableCap Stud Insulator is sized for 8 AWG to 4 AWG cable.

How many insulators come in a package? The 4011 is sold as a retail pack of 2 insulator caps.

What is this insulator used for? It insulates stud-type connectors on alternators, starters, windlasses, and other high amperage devices to help prevent accidental shorts at the terminal.

What color is part number 4011? Part number 4011 is black, making it suited for negative or ground-side stud connections.

Is there a red version for positive connections? Yes, Blue Sea Systems offers the same 8-4 AWG cable size in red as part number 4010, letting you color-code positive and negative studs.

How much does the 4011 insulator weigh? The Blue Sea Systems 4011 weighs 0.05 pounds.

Is the 4011 a genuine Blue Sea Systems part? Yes, 4011 is the manufacturer part number for this genuine Blue Sea Systems CableCap Stud Insulator.

Where does the CableCap insulator install? It fits over stud-type electrical connectors, such as those found on alternators, starters, and windlasses, to insulate the exposed terminal.

Does the 4011 fit larger cable like 2/0 or 4/0? No, the 4011 is sized for 8-4 AWG cable; Blue Sea Systems offers larger sizes such as 2-2/0 AWG and 3/0-4/0 AWG under different part numbers.

What is included when I order the 4011? Ordering part number 4011 gets you a retail pack of 2 black stud insulator caps sized for 8-4 AWG cable.