Cobb, 47, who has made a combined 247 starts across the Xfinity and Truck series, will compete in RWR’s #15 Chevrolet in the GEICO 500 on the 25 April.
She will become just the second female driver in NASCAR history who has competed in all three of NASCAR’s national series, after Shawna Robinson was the first to do so.
“I am so thankful for this opportunity with RWR,” said Cobb. “I have a long history with RWR and a lot of respect for this organisation.
“This team has a lot of heart and reminds me a lot of my small (Truck) team competing against such mammoth organisations.
“I am proud of what RWR has accomplished and I want nothing more than to make the team and all my sponsors and supporters proud of this effort.”
Rick Ware added that he was excited to have Cobb racing in the #15 car, which has been shared by Cup veteran Derrike Cope, James Davison, Joey Gase and rookie Chris Windom so far in 2021.
Jennifer Jo Cobb, Jennifer Jo Cobb Racing, Chevrolet Silverado Osage Contractors
Photo by: Matthew T. Thacker / NKP / Motorsport Images
“https://www.autosport.com/”I am grateful to have a new sponsor like Arrowhead Brass join in my excitement of having Jennifer Jo Cobb drive for RWR at Talladega Superspeedway,” said Ware.
“Being a female in a male dominated sport is not an easy task, especially for as long as Jennifer has been competing in NASCAR. I hope that she has a successful first NASCAR Cup Series debut.”
Last year, Cobb shattered two records in one weekend by capturing a land speed record in a Cup car – clocking more than 223 mph on Friday afternoon in Arkansas.
She followed that up the next day making her way to Talladega where she led 16 laps in the Truck race, becoming the female driver with the most laps led on an oval in one of NASCAR’s top series.
Cobb, has two Xfinity and nine Truck starts at Talladega with a best track finish of 11th in the 2018 Truck race.
She first competed in NASCAR in the Xfinity Series – then known as the Busch Series – in 2004, making sporadic appearances over the next few seasons, until switching over to Trucks full-time with her own team.
Her best result so far is sixth place in the 2011 Daytona 250 season opener, although has not finished in the top 10 since.