Selecting high-quality sensors, service packs, and accessories for today’s vehicles ensures that quality standards are met and customers can drive safely with their TPMS system fully operational. Schrader service packs provide the essential components that must be replaced each and every time a TPMS-equipped vehicle requires a tire to be removed for service. Components include (but are not limited to) a Schrader valve core, sealing cap, grommet and nut. In some instances a stem is provided as part of the serivce pack. This particular service pack (part #20008, Snap-In) is applicated for fitment to Buick, Cadillac, Chevrolet, GMC, Hummer vehicle types. For complete application coverage, please visit www.SchraderInternational.com. For complete application coverage, please visit www.SchraderInternational.com.