
Harris, 35, is currently in his first season as a Cup crew chief for driver Michael McDowell at Front Row Motorsports, where McDowell has enjoyed a career-best season with 12 top-10 finishes in 32 starts so far.
Harris will complete the year with McDowell before moving to HMS in mid-November. He is replacing Greg Ives, who announced in August he would step down as crew chief for Bowman and the No. 48 team at the end of this season.