Replace TPMS sensor service kit parts during every tire service, including flat-tire repairs and new-tire mounting. Even when a full sensor replacement isn’t necessary, replace the service parts.
What’s included in the service parts?
The service kit for sensors with a metal stem generally consists of a hex nut, grommet/seal, valve core, and cap. For sensors with a rubber stem, the kit includes a completely new stem, core, and cap.
Why do I need to replace the TPMS sensor service parts?
Before TPMS, a tire valve was a simple part. Either it held air, or it didn’t; if it didn’t, you replaced it. Now, with TPMS, the valve assembly is an integral part of an essential safety system that’s been mandated by Federal law. If the valve assembly is compromised, the entire Tire Pressure Monitoring System is compromised.
Service parts can corrode and lose proper functionality over time. Replacing the TPMS service parts is needed to ensure you return the vehicle to the customer with the tire safety system operating as designed.