This is an O-Ring kit for the 2nd generation TST Cap sensor. When you change the batteries in your Cap sensors you will need this kit to replace the O-rings, and valve stem gaskets if needed. This kit has all the replacement pieces for 6 sensors. If you are changing the batteries in more than 6 sensors then order as many kits as you will need to get to your number. This 2nd generation TST Cap O-Ring kit includes:
* 6 O-Rings
* 6 Valve Stem Gaskets
* 6 Replacement Brass Nuts
ATTENTION: If you have generation 1 Cap sensors then you will need a generation 1 O-ring kit. Be sure to look at the pictures on this listing to match up which Cap sensors you have. If you have the cap sensor with the spinning outer cap as the anti-theft device then you have generation 1 Cap sensors.