Kyle Busch Motorsports announced Monday that Jason Leffler will be the primary driver of the team's No. 18 Tundra in the Camping World Truck Series this season.

Second Iowa date also takes place of Nashville, New Hampshire and Indianapolis tracks on 22-race calendar.

Austin Dillon becomes youngest NASCAR Camping World Truck Series champion ever, while Johnny Sauter outlasted the field and the rain to win at Homestead.

Kevin Harvick took NASCAR Camping World Truck Series victory at Texas and clinches owners' championship, while his full-season driver loses out driver's title hopes.

Denny Hamlin records his first NASCAR Camping World Truck Series win in Martinsville short-track bout.

In his first Camping World Truck Series start since 2009, Mike Wallace won Saturday's Coca-Cola 250 at Talladega Superspeedway, as Kevin Harvick Inc. teammate Ron Hornaday Jr. pushed him across the finish line.

Polesitter Ron Hornaday Jr. held off a late challenge by Matt Crafton on Saturday to earn his 51st Camping World Truck Series victory in the Smith's 350 at Las Vegas Motor Speedway.

Ron Hornaday switches trucks for Kevin Harvick Inc. and wins his record 50th series race at Kentucky.

Kyle Busch leads all but 10 laps and laps up to sixth place in NASCAR Camping World Trucks race at New Hampshire Motor Speedway.

Austin Dillon scores victory to close within three points of NASCAR Camping World Truck Series championship lead.