Lowrance 20' Transducer Extension Cable

Extend Your Sonar Reach with Confidence

Picture this: you're out on the water, chasing that perfect fishing spot, but your transducer cable just won't reach where you need it mounted for the clearest readings. That's where a reliable extension cable steps in, giving you the flexibility to position your sonar sensor exactly right—whether it's tucked away from spray on the transom or routed cleanly through your boat's hull. This 20-foot extension cable is crafted specifically for Lowrance systems with 7-pin BL transducers, those blue-connector powerhouses operating at 50 kHz or 200 kHz frequencies. It also plays nice with matching speed and temperature sensors, keeping your setup seamless.

Boaters and anglers swear by these extensions because they eliminate the hassle of short factory cables without compromising signal quality. No more signal loss or intermittent dropouts—just crisp, reliable underwater imagery that helps you spot structure, baitfish schools, and trophy catches from farther away.

Perfect Fit for Your Lowrance Setup

Compatibility is king in marine electronics, and this cable slots right into a wide array of proven Lowrance models. It's designed for units like the LCX-110C, LCX-111C HD, LCX-17M, LCX-20C, and many more in the LCX, LMS, and X series families—including the LMS-332C, X102C, and X59DF. Whether you're running a compact display or a full-featured chartplotter-fishfinder combo, this extension ensures your transducer communicates flawlessly.

• 7-pin configuration for precise, plug-and-play connection
• Supports single and dual-frequency BL transducers
• Ideal for boats where the head unit is mounted mid-cabin or console
• Handles the rigors of saltwater exposure and constant vibration

Pro tip: Before installing, double-check your transducer's connector color—blue means BL, and you're golden. This avoids any mix-ups with older black-connector models.

Built Tough for Real-World Boating

Marine environments don't pull punches—UV rays, saltwater corrosion, and endless flexing from waves demand gear that's overbuilt. This cable features rugged construction with marine-grade shielding to protect against electrical interference from your boat's motor or other electronics. The 20-foot length strikes a sweet spot: long enough for most installations but not so bulky it creates routing nightmares.

Installation is a breeze—no soldering or custom adapters needed. Simply unplug your transducer, plug in the extension, and route it securely with zip ties or conduit. Anglers report it takes under 30 minutes, even for DIYers. And with its flexible yet durable jacket, it resists kinking and cracking over seasons of heavy use.

"Finally got my HDS display up front without drilling new holes. Crystal-clear sonar now from the stern-mounted ducer—game changer!"

Why Trust Lowrance for Your Extensions?

Lowrance didn't just invent modern fishfinding; they've refined it for decades. From the first recreational sonar units to today's high-res CHIRP tech, their accessories like this extension cable keep pace. You get peace of mind from engineering that prioritizes clarity and longevity, plus a commitment to the angling community that shows in every detail. Pair it with your existing setup, and you're dialed in for everything from bass tournaments to offshore adventures.