Garmin 010-10182-21 50/200KHZ 600 Watt B117 8-Pin

The Garmin 010-10182-21 50/200KHZ 600 Watt B117 8-Pin transducer is the workhorse sounder head built for anglers and boat operators who demand reliable, deep-water target definition in both freshwater and saltwater environments. This dual-frequency transducer delivers the versatility needed for everything from shallow-water structure hunting to open-ocean applications, making it an essential upgrade or replacement component for Garmin-compatible marine electronics systems. Whether you're running a center console, sportfisher, or dedicated bass boat, this transducer integrates seamlessly with your existing Garmin hardware to unlock superior bottom-imaging performance.

Operating across 50 kHz and 200 kHz frequencies, the B117 generates 600 watts of peak-to-peak power, ensuring strong sonar returns even in challenging conditions—thick thermoclines, murky water, and high boat speeds. The 50 kHz band penetrates deep and reaches distant targets, ideal for offshore structure and bottom composition analysis; the 200 kHz frequency provides narrow beam angles and fine detail resolution for precise target separation and waypoint marking. The 8-pin connector design ensures compatibility with Garmin's classic and modern transducer networks, while the compact B117 housing accommodates through-hull, shoot-through-hull, and transom-mount installations depending on your boat's configuration and preference.

This transducer suits captains upgrading aging sounder systems, boat builders integrating new Garmin displays, and anglers troubleshooting weak sonar performance on established rigs. The 600-watt output and dual-frequency architecture handle speed and depth without signal dropout, making it reliable from idle trolling speeds to full-throttle cruising. Proper installation—whether vertical through-hull or angled transom—ensures the transducer face maintains consistent water contact and optimal beam coverage, so confirm mounting location and cable routing with your Garmin documentation before final setup.