If your Dash looks like this one, this mount plate will fit.
Please Note : If you measure from the inside top edge of your steering wheel and the Dash Plate and
it measures 6 1/2" or more, then you do not need a steering spacer. If your measurement is under 6 1/2" then you will need a 1 1/2" Steering spacer. You can get it HERE.
If you have larger units that are not listed in the drop down menu for GPS/Sonar, then go to the Z175/Z185 Single MEGA Dash Mount