Why not? I installed a 112 60in. Ultrex on a Bennington pontoon. You cannot use the US-2 transducer but I mounted the Helix 7 di transducer on the trolling motor, seams fine. You can get a transducer extension cable to disconnect when removing the trolling motor.
“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” Remember what He has done and remember that He is not done yet! GOD IS GOOD