Red Bull has extended its partnership with Renault until the end of 2018, with Toro Rosso also included in the deal.
After a breakdown in the relationship last year, Red Bull attempted to find a new power unit supplier but eventually stayed with Renault and rebranded the engines as Tag Heuer this season. Having been powered by Renault, Toro Rosso did secure another supply, receiving year-old power units from Ferrari.
However, with Red Bull happy with the progress from Renault since the end of last season, both teams will use the French manufacturer's power units in 2017 and 2018.
"We are delighted to extend our partnership which has proved very successful over time," Red Bull team principal Christian Horner said. "After the reconstruction that Renault has undertaken, clear progress has been made which has made it logical to continue with the TAG Heuer badged engine."
Jérôme Stoll, President of Renault Sport Racing, said the deal shows the faith he has in the works team to deliver in future.
"We are very pleased to partner with two such strong teams as Red Bull Racing and Scuderia Toro Rosso," Stoll said. "Having competitive partners demonstrates the confidence both have in the improved Renault power unit and in our organisation as a whole."
Toro Rosso will also receive current specification power units and the deal allows both teams to badge the engine as they wish.
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