GM Genuine Parts Tire Pressure Indicator Nuts are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These nuts are what keep your tire pressure sensor in place. It is an ideal replacement if you need a new tire pressure indicator nut for your ACDelco GM GP Tire Pressure Sensor. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).