SigeIy Filtered Power Cable for Humminbird Helix 6.5 ft

SigeIy PC 11 is a 6.5-foot filtered marine power cable built to replace Humminbird 720057-1 and provide stable, noise-reduced power to Helix fishfinder models.

When you rely on a Humminbird Helix display for navigation and fishfinding, clean, consistent power matters. The SigeIy PC 11 power cable is engineered for saltwater and freshwater marine use and connects directly to a wide range of Helix units. It combines a length suited for cockpit routing with an inline filter to limit electrical interference, helping your chartplotter and sonar perform without erratic resets or audio/static noise.

Which Humminbird models are compatible with this cable?

The SigeIy PC 11 is designed to match the original Humminbird 720057-1 wiring and fits multiple Helix generations. It works with Helix 8, 9, 10, 12 and 15 inch models as well as many units across the 700, 800, 900 and 1100 series.

• Compatible with HELIX 8/9/10/12/15 and select 700/797/798 series units
• Fits 800, 900 and 1100 series displays where the original harness is used
• Direct-replacement wiring layout for plug-and-play convenience

How does the PC 11 reduce interference and protect electronics?

The cable integrates a filter assembly that helps suppress electrical noise from onboard motors, radios and alternators. That filtering reduces static and helps maintain steady power to sensitive sonar processors and displays.

• Inline filter housing reduces radio-frequency and alternator noise
• Durable insulation resists marine corrosion and wear
• Proper grounding and conductor sizing for steady voltage delivery

What are the physical specs and installation points to know?

The cord measures 6.5 feet, giving you room to route around consoles without excess slack. The cable terminates in the connector configured for Humminbird display power inputs and includes clearly marked leads for positive, negative and accessory circuits.

• Length: 6.5 ft (approximately 2 meters) for flexible routing
• Direct-replacement of part number 720057-1 for easy swap-out
• Marine-grade materials for long-term exposure to moisture and vibration

What support and quality assurances come with the cable?

SigeIy builds the PC 11 with marine-rated components and offers customer assistance for fitment or performance questions. If you encounter a defect or fit issue, the product packaging notes support and options for replacement or refund.

• High-quality construction made for marine environments
• Packaged as PC 11 - Filtered Power Cable with support contact information
• Manufacturer assistance for troubleshooting, replacement, or refund

Who is this for? Boaters, anglers and marine electronics installers who need a reliable, plug-compatible replacement for Humminbird power harnesses will benefit from the SigeIy PC 11. It is suited to anyone upgrading or repairing Helix series displays who wants a neat 6.5-foot cable with built-in interference filtering and marine-grade durability.