Dorman 974-075 TPMS Sensor Transmitter Replaceable aluminum valve stem is anodized for long-lasting corrosion resistance and may be serviced separately from the entire unit Comes with stem unit, grommet, washer, and hex nut for a complete installation Sensors are designed to accommodate installation angles from 5 to 26 degrees Dorman sensors work with all existing Tire Pressure Monitoring System (TPMS) tools OE#: 28103-AG00A, 30748991, 30748991-4, 31200923, 31200923-6, 43130-54J20, 43130-54J21