This switch replaces the OEM switch and is for use with OEM electronic actuators. It has the same 3 positions, 2WD, 4WD, and Diff Lock. But when this switch is put into the Diff Lock position, it automatically removes the speed limiter and our Diff Lock Bypass LED lights up. Functional, reliable, and comes with a limited life-time guarantee! Fits 2012 & up T4 All 2014 & Newer All teryx 800 models Any teryx model with 2WD/4WD/Diff Lock knob on the dash Includes Switch w/ Wire Harness, 2WD/4WD/DL Speed Limit Bypass Wire harness Cable tie w/push tree fastener Installation All of our products are completely plug and play, no cutting, no drilling and no splicing wires! Check out the installation video below, or Click Here for Written Instructions