This race used Kevin Harvick fender is from the 2018 season. It is either from Indianapolis, Richmond, or the Charlotte Roval. I have been unable to confirm. The team only ran the New 9-Grain Whole Wheat Sub text on the side of the car in a few races later in the season.
Kevin Harvick #4 Jimmy Johns Ford 2018 (RR Fender)
Ford Fusion | Stewart-Haas Racing