If your dash looks like this, then this mount will fit.
TRITON TXP Models - Triton changed the steering wheel to a 1 piece Steering Wheel/ Cog. If yours boat has Hydraulic Steering, then your steering wheel should measure from the dash to the inside top edge of steering wheel, it should read about 6 3/8 - 6 5/8", If that is the case, then no spacer should be needed in most cases. If it is 4" on that measurement, then you will need a complete changeover kit to be able to add a spacer to increase area between steering wheel and unit. Pictures here shows the Steering Wheel Kit Installed
If you have very large units and it is not listed in the drop down menu for GPS/Sonar, then go to TRITON 19 TXP ALUM (2021) Single MEGA Dash Mount