A factory-backed Holden team will remain on the Supercars grid until at least the end of the 2021 championship.
Triple Eight Race Engineering announced on Thursday it had renewed its deal with the manufacturer for two years.
It continues Holden's relationship with Australian touring car racing stretching back to the 1960s and famous names such as Peter Brock and Harry Firth.
Triple Eight has been Holden's sole factory team since 2017 when it ended a 26-year partnership with Walkinshaw Racing.
The team has also secured primary sponsor Red Bull for the same time period despite a difficult 2019 season where Ford rival DJR Team Penske has dominated on the track.
"The Red Bull Holden Racing Team will be on the grid as you see it until at least the end of 2021, which is fantastic," Triple Eight's commercial operations manager and co-owner Jessica Dane told Fox Sports.
"The support network around us has been fantastic even though it's been slightly testing times."
Red Bull drivers Jamie Whincup and Shane Van Gisbergen head into this weekend's Townsville 400 well behind DJR pair Scott McLaughlin and Fabian Coulthard.
Defending series champion McLaughlin, who has won 12 of 16 races in 2019, holds a 319-point lead over teammate Coulthard in the title standings.
Van Gisbergen is fifth on the standings a further 228 points adrift while seven-time series champion Whincup is sixth and trails McLaughlin by a whopping 556 points.
"Big news that Red Bull and Holden have signed on for a little bit longer," Whincup said.
The Townsville 400 gets underway on Friday with two half-hour practice sessions at the Reid Park street circuit before a 200km race each on Saturday and Sunday.
