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Upgrade your boating adventures with the Garmin GT41-TM transom mount transducer, a powerhouse that combines traditional CHIRP sonar with stunning DownVü and SideVü imaging. Designed for anglers chasing coastal runs or offshore hauls, this 12-pin transducer delivers razor-sharp visuals of fish, structure, and bottom contours—even in choppy waters. Its robust build handles rough conditions while providing reliable depth readings up to 1,500 feet on traditional sonar, making it a go-to for serious fishermen who demand clarity without compromise.
The GT41-TM shines by blending high-power traditional sonar (600W at 50/200 kHz) for classic fish arches with CHIRP DownVü/SideVü (500W per element, 1,500W total at 260/455 kHz) for photo-like down and side scans. Spot schools hugging ledges or bait balls off to the sides without guesswork. The integrated fast-response temperature sensor tracks water conditions on the fly, helping you adjust trolling speeds or locate thermoclines where big game lurks.
Mounting the GT41-TM is straightforward with included hardware, but a few pro tips ensure peak performance: Position it 1/3 from the transom's center, parallel to the waterline at speed, and away from strakes or prop wash. Use marine sealant on bracket screws to prevent leaks, and route the cable through existing hull fittings if possible. Test in calm water first—adjust angle for a crisp bottom track at 20-30 knots. Common pitfalls like air bubbles or cavitation? Dead easy to fix with slight repositioning. Anglers report crystal-clear images post-install, transforming their Garmin chartplotters into fish-finding machines.
Coastal bass chasers love how SideVü reveals submerged timber 100 feet out, letting you idle over without spooking fish. Offshore, DownVü maps wrecks and reefs in stunning detail, highlighting snappers or groupers amid the rubble. Pair it with your Garmin unit for split-screen views—traditional for navigation, imaging for precision casts. In tournaments, its rough-water stability keeps returns steady when others fade, giving you the edge on structure-heavy lakes or inlets.
"Switched to the GT41-TM last season—SideVü showed fish holding 200 feet off a point I would've missed. Game-changer for walleye runs."
| Specification | Details |
|---|---|
| Frequency - Traditional | 50/200 kHz |
| Frequency - DownVü/SideVü CHIRP | 260 kHz (245-275 kHz) & 455 kHz (445-465 kHz) |
| Power - Traditional | 600 W |
| Power - DownVü/SideVü | 500 W per element (1,500 W total) |
| Beamwidth - Traditional | 40°/10° |
| Beamwidth - DownVü/SideVü | 2.0°x51° @ 260 kHz / 1.4°x29° @ 455 kHz |
| Maximum Depth - Traditional | 1,500 ft |
| Maximum Depth - DownVü | 1,000 ft |
| Maximum Depth - SideVü | 500-750 ft |
| Cable Length | 30 ft |
| Supported Transom Angles | 0°-70° |
| Pins | 12-pin |
Its optimized design and high-power elements maintain clear sonar returns even in choppy seas, outperforming many competitors in adverse conditions.
It's compatible with select models like echoMAP sv series and GPSMAP xsv units—check your device's specs for 12-pin support.
Run at moderate speeds (under 20 knots), adjust gain manually for water clarity, and ensure proper transducer alignment parallel to the hull bottom.
Yes, the built-in sensor provides quick, accurate temp readings to help track baitfish movements and lure choices.
Mount about one-third back from the transom edge, starboard side preferred, clear of hull features that disrupt flow.
Up to 500-750 feet total depth, revealing targets hundreds of feet to each side—great for scouting without repositioning.
Ships within 48 hours · Estimated delivery Sep 16 - Sep 21
US$40
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