The Sportsman Generator Wheel Kit with Folding Handle, Support Leg and Never-Flat Tires is made for easy installation and takes your generator to a new level of mobility. Wheel Kit is compatible with all Sportsman 4000 Watt Generators. The wheel kit quickly transforms a heavy generator into a portable power supply perfect for use during an emergency, on the job, with your RV or next weekend away. NOT COMPATIBLE WITH GEN4000-SS or GEN4000DF-SS