Hello the only grille guard it looks like that will fit the 2019 Yukon would be the Luverne Grille Guard. https://www.sharptruck.com/luverne-2-in-tubular-grille-guard
As far as a difference between the Tahoe and Yukon there must be something different either with the bumper or the mounting points on the frame that make the HDX work for the Tahoe but not the Yukon.
Verified Answer
Admin answered on 7/15/2019