Garmin ECHOMAP Ultra 2 166sv 16-inch Chartplotter with GT56UHD-TM Transducer, Garmin Navionics+ U.S./Canada

Garmin ECHOMAP Ultra 2 166sv

16-inch premium chartplotter/fishfinder with GT56UHD-TM transducer. The ECHOMAP Ultra 2 166sv is built for anglers who want a high-end Garmin display, fast chart and sonar control, and a clean electronics layout at the helm.

Premium Garmin Control for Serious Fishing

The ECHOMAP Ultra 2 platform gives you a large touchscreen with keyed-assist controls, making it easier to move between charts, sonar, waypoints, routes, and system settings while you are on the water. It is a strong fit for anglers building a more advanced Garmin marine electronics system.

Built Around Garmin Sonar and Mapping

This 166sv configuration includes Garmin Navionics+ U.S./Canada. Garmin Navionics+ U.S./Canada is the stronger fit when you want integrated U.S. and Canada inland, coastal, and offshore chart detail. The display supports Garmin traditional CHIRP, ClearVü, SideVü, and LiveScope sonar systems, so you can build the setup around the way you fish.

Spec Highlights

• Brand: Garmin
• Product Family: ECHOMAP Ultra 2
• Display Size: 16-inch
• Sonar Support: Garmin traditional CHIRP, ClearVü, SideVü, and LiveScope compatibility
• Mapping: Garmin Navionics+ U.S./Canada
• Transducer: GT56UHD-TM
• MPN: 010-03386-01
• UPC/GTIN: 753759353360

Choosing the Right Garmin ECHOMAP Ultra 2 Model

Choose by screen size first, then decide whether you want Garmin Navionics+ mapping or Worldwide Basemap, and whether you need the GT56UHD-TM transducer included.

ECHOMAP Ultra 2 102sv

10-inch · Worldwide Basemap

Best for: compact helms that still need a premium Garmin display and advanced sonar support.

View GT56 bundle

ECHOMAP Ultra 2 106sv

10-inch · Garmin Navionics+ U.S./Canada

Best for: compact helms that still need a premium Garmin display and advanced sonar support.

View GT56 bundle

ECHOMAP Ultra 2 122sv

12-inch · Worldwide Basemap

Best for: boats that need more screen room for split-screen sonar, mapping, and waypoint work.

View GT56 bundle

ECHOMAP Ultra 2 126sv

12-inch · Garmin Navionics+ U.S./Canada

Best for: boats that need more screen room for split-screen sonar, mapping, and waypoint work.

View GT56 bundle

ECHOMAP Ultra 2 162sv

16-inch · Worldwide Basemap

Best for: large glass-helm installs, split-screen sonar/chart views, and serious offshore or big-water setups.

View GT56 bundle

ECHOMAP Ultra 2 166sv

16-inch · Garmin Navionics+ U.S./Canada

Current model family

Best for: large glass-helm installs, split-screen sonar/chart views, and serious offshore or big-water setups.

View GT56 bundle

Frequently Asked Questions

Does this ECHOMAP Ultra 2 model include a transducer?
Yes. This package includes the GT56UHD-TM transducer.

Which mapping package is included?
Garmin Navionics+ U.S./Canada is the stronger fit when you want integrated U.S. and Canada inland, coastal, and offshore chart detail.

What is the difference between the 102/106, 122/126, and 162/166 models?
The first two digits indicate screen size: 10-inch, 12-inch, or 16-inch. The model and part number also determine the mapping package and whether a transducer is included.

Should I choose a GT56 bundle or a no-transducer model?
Choose a GT56 bundle when you want the transducer included. Choose a no-transducer model if your boat already has a compatible Garmin transducer or you are building a custom sonar setup.

What is the manufacturer part number?
The manufacturer part number is 010-03386-01.

Included in the Box

• Garmin ECHOMAP Ultra 2 166sv display
• GT56UHD-TM transducer
• Power/data cable
• Tilt/swivel mount
• Protective cover
• Documentation

Product Identifiers

• Brand: Garmin
• Series: ECHOMAP Ultra 2
• Model: 166sv
• MPN: 010-03386-01
• UPC / GTIN: 753759353360

Installation note: Confirm transducer, chart card, radar, autopilot, cable, and mounting requirements for your exact boat setup before installation.