Airmar B164 1kW 20° Thru-Hull Transducer w/Blue Connector

The Airmar B164 1kW 20° Thru-Hull Transducer w/Blue Connector is purpose-built for anglers and boaters who demand reliable sonar performance in both shallow and moderate depths. This transducer serves as the critical link between your fishfinder and the water column, converting electrical signals into high-frequency sound waves that bounce back to reveal structure, baitfish, and bottom composition. Whether you're working coastal flats, inland lakes, or nearshore venues, this transducer delivers the real-time underwater intelligence that separates consistent catches from wasted fuel.

Built to Airmar's exacting marine standards, the B164 generates 1 kilowatt of sonar power with a 20-degree cone angle—a narrow beam pattern that provides superior target definition and bottom resolution compared to wider transducers. The thru-hull design mounts flush through the hull for minimal drag and clean aesthetics, while the blue connector ensures compatibility with modern Garmin and other leading fishfinder systems that support Airmar transducers. Constructed from durable stainless steel and engineered to withstand saltwater corrosion and constant immersion, this transducer operates reliably across fresh and saltwater environments. The 20-degree beam concentrates sonar energy into a tight footprint, making it exceptionally effective for identifying hard structure, thermoclines, and precise depth readings in depths ranging from a few feet to several hundred feet.

This transducer is ideal for serious anglers operating single or dual-engine boats who want professional-grade sonar without the expense of premium bronze components. Thru-hull installation requires a properly sized through-hull fitting and steady hand during drilling, but the investment pays dividends in water clarity and target separation. It pairs seamlessly with Garmin echoMAP and other compatible units, making it an excellent upgrade for boats transitioning from transducer-integrated displays to dedicated sonar systems. Installation depth is best suited for hulls with adequate freeboard; transom-mounted alternatives exist for lighter craft or tournament applications requiring quick repositioning.