If your Dash looks like this one, this mount plate will fit.
This mount fits the Ranger 522D.
If you have smaller units that are not listed in the drop down menu for GPS/Sonar, then go to 522D Boat Single Mounts
Note: If your Boat does not have tilt wheel, then you will need a 1-1/2" steering spacer. These are available in the Other Custom Accessories section.
Disclaimer: The Apex Factory Gimbal brackets have a Hole Pattern in them that "Does Not" match any previous hole pattern used by Humminbird in the past. We will send a Hole pattern with mounts that have a Apex model graph and you will need to mark your factory Apex gimbal Bracket and drill 9/32 holes them to match our pattern. Note: The BBT Cheyenne Series Apex Gimbal Brackets will have the same hole pattern in them as Helix and Solix Gimbal Brackets.