Is your Hunter tire changer down on power and won't break a bead? Does it have trouble spinning and clamping/releasing? More than likely your valves are cracked and no good. Dealers want upwards of $200 for a short life repair when you can upgrade to a heavy duty part for a fraction of the price. Valves can work on several models but have only been tested on the tc3250/325 model. Kit includes both main valves and the bead blast valve Instructions for this model will be included. Color may vary.