What type of valve core is commonly used in stem-mounted sensors?

The commonly used valve core for stem-mounted sensors is nickel-plated. This is due to the design and functional requirements of tire pressure monitoring systems (TPMS). Nickel plating offers enhanced corrosion resistance, which is essential for maintaining the integrity and functionality of the sensor over time, especially in harsh environments where road salts and chemicals can accelerate wear and corrosion.

The choice of nickel plating ensures a reliable connection between the valve core and the tire, as nickel is less likely to corrode than other materials. This minimizes the risk of leaks that could arise due to corrosion, thereby ensuring the sensor remains effective in monitoring tire pressure accurately.

Understanding the material properties of valve cores is crucial in automotive servicing, particularly when working with tire pressure monitoring systems. Proper knowledge ensures longevity and reliability of the components involved in vehicle safety and performance.