Sierra Marine Battery Cable, Black, 8 Feet, 6 AWG, Part 18-99459

This Sierra battery cable is an 8 foot length of 6 AWG cable with black insulation, built for marine battery wiring and charging connections aboard boats. The 6 AWG gauge is sized to carry higher-amperage current safely, making this cable a fit for main battery leads, battery-to-starter runs, and other heavy-duty electrical connections where a lighter-gauge wire would be undersized. The black jacket allows it to be paired with a red cable of matching gauge and length to keep positive and negative runs visually distinguished during installation, which simplifies wiring and future troubleshooting.

At 8 feet, the cable provides enough length to route through typical engine compartments, battery boxes, and bilge areas without needing to splice multiple shorter sections together. It is identified under UPC 808282396398 and is sold as a single cable, part number 18-99459.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-99459
• Color: Black
• Length: 8 feet
• Wire Gauge: 6 AWG
• UPC: 808282396398
• Weight: 1.2 pounds

Frequently Asked Questions

What gauge is the Sierra 18-99459 battery cable? The Sierra 18-99459 battery cable is 6 AWG, a gauge sized for higher-amperage marine electrical connections such as main battery leads.

How long is this battery cable? This Sierra battery cable, part number 18-99459, measures 8 feet in length.

What color is the 18-99459 cable? Black. The Sierra 18-99459 cable has a black outer jacket, which is typically used for the negative side of a battery circuit when paired with a red positive cable of matching gauge and length.

How much does the cable weigh? The Sierra 18-99459 battery cable weighs 1.2 pounds.

Is this cable sold as a single cable or a pair? It is sold as a single 8 foot black cable, part number 18-99459, not as a matched positive/negative pair.

Can I use 6 AWG cable for my boat's main battery connections? 6 AWG is a common gauge for marine battery wiring where higher current-carrying capacity is needed compared to lighter-gauge wire; the Sierra 18-99459 is offered in this gauge at an 8 foot length.

Does this cable have a UPC I can look up? Yes, the Sierra 18-99459 battery cable carries UPC 808282396398.

Do I need to cut this cable to length during installation? The Sierra 18-99459 is supplied at a fixed 8 foot length, so it can be trimmed to the exact run needed for your installation.

Is the 18-99459 cable pre-terminated with lugs or connectors? The available product details for the Sierra 18-99459 describe the cable itself (black, 8 feet, 6 AWG) without specifying pre-installed terminals.

What is part number 18-99459 used for? Part number 18-99459 is a Sierra 8 foot, 6 AWG black marine battery cable used for battery and charging wiring connections on boats.