Koch, who was released from Kaulig Racing early in 2018 and failed to procure a ride this past season, will return to full-time racing in 2019 driving the No. 4 to JD Motorsports along with exemptions from his firm, FilterTime.

Koch, 33, replaces Ross Chastain, who’ll compete at the Xfinity Series next year with Chip Ganassi Racing.

“It’s hard for me to explain how excited I am to race again and to do it for JD Motorsports. I’ve observed the progress of the team and also have raced against them for several years,” Koch said in a statement.

“Coming off their very best season with Ross making the playoffs, it’s a perfect time to join them.

FilterTime, an air filter subscription support, is going to be the primary host in select races during the 2019 season, beginning with the season-opener in Daytona in February.
With Koch having made the Xfinity Series playoffs in 2016 and 2017, staff owner Johnny Davis is hopeful he will see the No. 4 car back into playoff contention next year.

“Johnny has given me an awesome opportunity to return in the series and to also have my firm, FilterTime, on the car,” Koch said. “This is truly a dream come true. I started this company to eventually get me back into a seat and it’therefore occurring.