Garmin GT56UHD-TM Ultra HD ClearVü, SideVü & CHIRP Transom/Trolling Motor Transducer (010-13073-00)
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GT56UHD-TM — Ultra HD Sonar in Every Direction, One Transducer
The Garmin GT56UHD-TM is a premium all-in-one transducer that delivers Ultra High-Definition scanning sonar below and to both sides of your boat, combined with High Wide CHIRP traditional sonar for deep-water target separation — all from a single unit. Whether you’re scanning structure, tracking suspended fish, or reading the bottom at depth, the GT56UHD-TM gives you the full picture without the complexity of multiple transducers. It includes both transom and trolling motor mounting hardware, so it works with your existing setup right out of the box.
Three Sonar Technologies, One Transducer
- Ultra HD ClearVü™ Scanning Sonar — Delivers brilliant, photo-like image clarity of structure and fish directly below your boat at greater depths than standard high-frequency scanning sonars. A downward-facing element concentrates more power on targets beneath you, producing sharper returns and better detail at depth.
- Ultra HD SideVü™ Scanning Sonar — See everything to the sides of your boat with stunningly clear images of structure, cover, and fish. The Ultra HD version operates at 1,000 kHz with 20% greater range than previous SideVü generations — so you can scan wider and see farther before making a move.
- High Wide CHIRP Traditional Sonar — CHIRP technology sweeps a continuous range of frequencies for remarkably clear target separation and fish arch definition. The high-wide beam provides broad coverage and reliable depth readings to 800’ below the boat.
Dual Mounting Options Included
The GT56UHD-TM ships with both transom mount and trolling motor mount hardware — no additional mounting kit required. Install it on the transom of your boat or on your trolling motor, depending on your setup and preference.
Best Use Case
The GT56UHD-TM is built for serious freshwater and inshore anglers who want the highest-quality scanning sonar available in a single transducer. It’s the ideal upgrade for anglers running a compatible Garmin GPSMAP or ECHOMAP Ultra chartplotter who want to maximize their sonar capability without adding a second transducer. Particularly effective for bass, walleye, and striper fishing on large lakes and reservoirs where covering water efficiently with SideVü and then drilling down with ClearVü is the core fishing strategy.
Compatible Display Units
The GT56UHD-TM is compatible with Garmin chartplotters and fish finders that support Ultra HD scanning sonar — including the GPSMAP 8600 series and ECHOMAP Ultra series. Verify your display unit’s transducer compatibility before purchasing.
Related Products
- Garmin GPSMAP 8610xsv Chartplotter & Sonar MFD — 10" — Premium 10" touchscreen MFD compatible with the GT56UHD-TM.
- Garmin GPSMAP 8612xsv Chartplotter & Sonar MFD — 12" — 12" touchscreen option for larger helm installations.
- Garmin GPSMAP 8616xsv Chartplotter & Sonar MFD — 16" — Flagship 16" display for full-featured helm setups.
- Garmin GPSMAP 8412xsv 12" Chartplotter with CHIRP Sonar — Additional GPSMAP 8400 series option.
- Garmin GPSMAP 8416xsv 16" Chartplotter with CHIRP Sonar — 16" GPSMAP 8400 series display.
- Garmin STRIKER Vivid 7cv Fish Finder/GPS — Note: verify STRIKER Vivid compatibility with Ultra HD scanning sonar before pairing with this transducer.
Parts Desk Insights
Best Use Case: The GT56UHD-TM is the right recommendation for customers who are already running a high-end Garmin GPSMAP or ECHOMAP Ultra display and want to upgrade to the best available scanning sonar without adding a second transducer. The “UHD” designation is the key differentiator — it means Ultra High-Definition at 1,000 kHz SideVü with 20% more range than the standard GT52 or GT54 series. Customers asking about the difference between this and a standard GT52HW-TM should be directed to the UHD upgrade for the SideVü range improvement and image clarity gains.
What to Know Before You Buy: Ultra HD scanning sonar requires a compatible display unit — not all Garmin fish finders support UHD. Always confirm the customer’s display is ECHOMAP Ultra or GPSMAP 8x00/9x00 series before recommending this transducer. Both transom and trolling motor mounting hardware are included — no additional mount purchase needed. CHIRP depth rating is 800’ in traditional sonar mode; scanning sonar depth varies by water clarity and conditions. This transducer does not include Panoptix LiveScope or LiveVü capability.
SKU: 322-0101307300 | Barcode: 753759307300
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.