Brand new in sealed package. This is not aftermarket it comes directly from GM, these retail for about $85 or more. Work on most 07 and up Silverado, Tahoe, Yukon, Suburban, Escalade, Impala, Traverse, Equinox and Cruze. If your vehicle is not listed please feel free to contact me and I'll check to see if this sensor is compatible with your vehicle. Thanks for looking.