Part#"s for each side is
84039199 & 84039200
Below is a link for ebay where I purchased mine from. The seller always has them available. Must have a hook up at a dealer. Don't forget they won't just plug straight up to your factory setup. You have to get with Vann on this thread about them. He sold me 2016/2017 headlight and tail light conversion plugs for my 14' model Sierra. Outstanding guy to deal with it.
https://www.ebay.com/itm/2016-GMC-Sierra-Denali-Tail-Lamps-Tail-Lights-Taillights-2016/322984109437?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D1%26asc%3D44039%26meid%3Dead1ec4eb9f64fce927203c965b9d112%26pid%3D100011%26rk%3D3%26rkt%3D12%26sd%3D322886371795&_trksid=p2047675.c100011.m1850
Hi,
Been following the thread for a few days now. I have a 14 GMC Sierra Denali. Got a deal on the 2016 model pass side headlight and actively searching for drivers now. How do I go about getting the zmnypit harness and how much?