GooDeal 4pcs Reverse Backup Parking Bumper Park Assist Object Sensor 15239247 for GM Replacing OE#: 15239247 Pin: 3 pins Please make sure your vehicle information is listed here or you can email us before purchasing if there were any questions, we will check for you and reply soon within 24 hours. Package Include: 4pcs Parking Sensors with O-ring as pictured