Item #956039

Garmin GT51M-TM Transom Mount Transducer

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Garmin GT51M-TM Transom Mount Transducer

Item # 956039


Perfect for the coastal and offshore fisherman who want CHIRP traditional sonar, CHIRP ClearVu and CHIRP SideVu scanning sonar, this transom mounted transducer consistently displays clear and crisp fish arches with superior target separation as well as clear pictures of objects, structure and fish that pass below and to each side of your boat and is optimized for rough sea conditions.

The CHIRP ClearVu/SideVu elements have a power rating of 500W per element and operating frequencies of 260/455 kHz. The traditional CHIRP sonar has a power rating of 600W and operating frequencies of mid-band CHIRP 80-160 kHz. It also includes a built-in fast response temperature sensor.

GT51M-TM includes a 12-pin transducer with mounting hardware and installation instructions. Follow the instructions carefully to avoid damaging your boat.


  • Frequency:
    • CHIRP Mid-band (80-160 kHz)
    • ClearVu/SideVu CHIRP 260 kHz (245-275 kHz) and 455 kHz (445-465 kHz)
  • Power:
    • CHIRP Traditional 600W
    • ClearVu/SideVu 500W
  • Beamwidth:
    • Traditional: 24-13 deg
    • ClearVu/SideVu: 2.0 x 51 deg. at 260 kHz and 1.4 x 29 deg. at 455 kHz
  • Maximum Depth:
    • Traditional: 1,800'
    • ClearVu: 1,000'
    • SideVu: 750'
  • Cable Length: 30'
  • Depth/Speed/Temperature: Depth and Temperature
  • Number Of Pins: 12-pin
  • Supported Deadrise/Transom Angles: 0-70 deg. transom

Installation Instructions


This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm.

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Part Numbers for Garmin GT51M-TM Transom Mount Transducer


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