Enhance your snowplow's visibility and integration with the Fisher 52101 Plug-In Harness Kit. Specifically designed for GM vehicles with LED headlights from 2015 onwards, this kit ensures seamless communication for your 3-port isolation module system. It includes the crucial 11-pin vehicle lighting harness with relays (#29860) and a plug-in harness, providing a reliable and easy-to-install lighting solution.