16-19 Sierra HD Universal Fog Light Harness afterburner day and night

day and night

The days of a "cone with a pipe" are dead

This is very useful when going to either LED or HID low beam bulbs

For those with LS models that don't have fog lamps

Please feel free to contact us with any questions

16-19 Sierra HD Universal Fog Light Harness afterburner day and nightThis is only for AFTERMARKET fog lights not OEM fog lights. Looking to add fog lights to your 2016 2019 GMC Sierra HD. Gen5DIY now has the needed harness to do just that. This is the harness only and is intended for those that have already purchased the fog lights on their own. This harness will allow the fog lights to automatically come on at night when both the parking lights and headlights are on. The fog lights will remain on when the high beams