The product is an OEM rear headlight height level sensor for Jaguar X100 XKR XK8 models from 2003 to 2006. This sensor, with the part number 3W8313D036AB, is designed to help maintain the proper height of the headlight for optimal performance. It is compatible with various Jaguar models and comes with the necessary wire harness cable for easy installation. This genuine Jaguar part ensures quality and reliability for your vehicle's suspension system.