Condition: New Frequency: 434MHz Placement on Vehicle: Left , Right , Front , Rear Manufacture Part Number: For 68157568AA 68239720AA 68249197AA Part Number: For 68157568AB 68239720AB 68249197AB 68249197AC Other Part Number: For 68185570AA 68186575AA 68186572AA 231008-101 231008-109 This are new sensors, not used. Also, These are not chinese aftermarket that originals. These sensors have had different part numbers throughout the years, But they all have the same fitment. Please refer to the interchange part number list to verify your sensor is the same. Colour: Black Material: ABS (For RAM) Interchange Part Numbers For: 68239720AA 68239720AB 68239720AC 68157568AA 68157568AB 68157568AC 68249197AA 68249197AB 68249197AC 68186572AA 231008-101 231008-109 Fitment For: 2014-2016 (ALL MODELS) 2014-2018 RAM 1500 (ALL MODELS) 2014-2018 RAM 2500 (ALL MODELS) 2014-2018 RAM 3500 (ALL MODELS) Compatibility: Please make sure the interchange part number matches the part you are replacing. Package Includes: 4 x TPMS Sensors Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.