The invention is a accessory vibration dampener that is applied over the diameter of any submersible electric trolling motor. This vibration dampener is molded as a single unitary piece of an elastomeric compound. The appendages counteract the frequency range of vibrations produced while an electric trolling motor is under propulsion. The device "MVD" dampens vibration on a motor by at least 22% according to laboratory sound tests, for just one dampener. Try a second one to take out an extra 4 - 5% vibration reduction.