SnowDogg Part # 16160100 - Truck Light Relay Harness is used on SnowDogg plows such as the SnowDogg MD, VMD, HD, EX, TE, XP ,VX, VXF, and CM snow plows. This is the harness which plugs into your vehicle's lights, or headlight adapter, and has a large relay pack on it, and then exits through your vehicle's grille. If you need individual relays for your existing harness, check out part number 16160114. This harness will include all new harness already connected on the relay block. This is an OEM part for SnowDogg plows only.