Most newer 4x4s are equipped with Tire Pressure Monitoring Systems (TPMS). The sensors for these systems are integrated with the valvestems-so if your valve stems looks like this, your vehicle has TPMS. Some aftermarket wheels accommodate this and some don't -all wheels shown in this article accept TPMS. Also, you have a couple of options when buying new wheels. You can move your factory TPMS to the new wheels, but this will require breaking down your old wheels and tires. Or you can purchase new TPMS, with prices ranging from about $80 to $200 per sensor.