Humminbird Ferrite Ring #470085-1,Humminbird Ferrite Ring #470085-1, All 2013 Terrova and PowerDrive V2 models will include a factory installed Ferrite Bead,If your trolling motor is causing interference with your Humminbird unit, you may need to add the US2 Ferrite Ring.Ring #470085-1 Humminbird Ferrite.

Humminbird Ferrite Ring #470085-1

Humminbird Ferrite Ring #470085-1
All 2013 Terrova and PowerDrive V2 models will include a factory installed Ferrite Bead,If your trolling motor is causing interference with your Humminbird unit, you may need to add the US2 Ferrite Ring.