Mounting a transducer to a trolling motor

Installing a Humminbird trolling motor transducer on my Minn Kota Power Drive, Terrova, Fortrex, Ultrex or Ulterra trolling motor?

Your trolling motor may come with a Mega Side and Down Imaging (MSI), Mega Down Imaging (MDI), or a Universal Sonar 2 (US2) transducer built into the lower unit. For information on compatibility or adapters required, please click here.

The built-in transducer may interfere with mounting an external transducer, depending on the size of the external transducer. Also, having 2 transducers that close to each other, may cause interference.

See recommendations from Minn Kota below:

  • Mount the External Transducer according to directions provided with the transducer. 
  • Leave enough slack in the Transducer Cable between the Lower Unit and the Control Head to allow the motor to properly stow and deploy.
  • Use two tie wrap cables to secure the Transducer Cable to the shaft just above the Lift Assist Collar and just below the Control Head.
  • Run the Transducer Cable through the Coil Cord to the power supply.


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