Busch passed Ben Rhodes with 39 of 134 laps remaining and held off Brennan Poole in a three-lap shootout at the finish to win Friday night’s N.C. Education Lottery 200 at Charlotte Motor Speedway.
Busch, a regular in the Monster Energy NASCAR Cup Series, is only allowed five starts a year in Trucks and he completed his 2019 schedule with a victory in each one. He also won at Atlanta, Las Vegas, Martinsville and Texas.
"I wish I could do more," Busch said in Victory Lane. "I can't say enough about everyone at Kyle Busch Motorsports and Rowdy Manufacturing. This Tundra was awesome tonight - it was flying and it was fast.
"We worked on it a lot in practice. We were a little off when we unloaded and we tried to make it better and better and better. We made improvements. That's what's good about me driving and Rudy (Fugle) crew chiefing - these guys do a great job working on it and we just keep getting better.
"Happy Birthday to (his son) Brexton - he'll be four tomorrow. It's awesome to have him here tonight and we'll celebrate."
The win was the 56th of his career (he is the all-time series leader) and the eighth at Charlotte.
Stewart Friesen ended up third, Rhodes was fourth and Matt Crafton completed the top-five.
On Lap 78, a multi-truck accident involving Gus Dean, Korbin Forrister and Angela Ruch put the race under caution. Only a handful of lead-lap cars elected to pit.