OE Number: SE57772 Fit for Dodge for Ram 2500 2008-2009,for Dodge for Ram 1500 2008,for Dodge for Ram 3500 2008-2009. Tire-pressure monitoring system (TPMS) Sensor was designed to monitor the air pressure inside the pneumatic tires on various types of vehicles. Small size, light-weight, high accuracy of sensing tire pressure , and easy installation, it also can withstand harsh environments. Easy to install and don't require additional hardware.