Humminbird 7400771 MS M Mount System
The Humminbird 7400771 MS M Mount System is an optional mount systems for your Humminbird that can also be used for a second mounting location on the boat, or can make a great replacement for a worn original. The system provides tilt and swivel, and simple snap installation. This unit will work with all Wide, 100sX, 200DX, 300TX, 400TX, 700 and 300 series fishfinders.