Set of 4 433mhz TPMS Tire Pressure Sensors w/ Silver Aluminum Valve Stems Please Note: Some Vehicles May Be Equipped with Either 315mhz or 433mhz. Vin Number Verification w/ OEM Part Number May Be Required Pre-Programmed, No Additional Programming is Required. Sensors will Auto Sync 7-8 year battery life. 5 Year Limited Warranty 100% Satisfaction Guaranteed Compatible with OEM Part Numbers: 68313387AB 68313387AA 68252493AB Built to perform like O.E sensors, in terms of signal interval, durability & functionality. Automotive battery grade to meet most severe weather conditions. Supports high pressure applications Precision crafted air valve to prevent air pressure leakage. Anodized stem valve for corrosion resistance. 0-40 degree adjustable stem valve to fit all types of wheels. Fast & simple assembly onto any aluminum & steel wheels. Dual Axis G-Sensor Technology for fast programming and foolproof. Independent lab tested for performance and durability