The nine-time MotoGP race winner announced in June that he would be quitting Yamaha a year earlier than planned as the relationship between both parties deteriorated dramatically across 2021.
At the time it was thought Vinales was heading to Aprilia for 2022, with the marque announcing as such earlier in August.
Vinales was since ousted from the factory Yamaha squad following a suspension from the Austrian Grand Prix for deliberately trying to damage his M1’s engine during the Styrian GP.
The Spaniard made his Aprilia debut at a private test on Tuesday at Misano, and rode the RS-GP again on Wednesday at the San Marino GP venue.
Aprilia has now confirmed Vinales will see out the 2021 season with the team before his full-time debut in 2022, taking over from Lorenzo Savadori – who will race as a wildcard for the rest of the year and return to being a test rider next season.
"We are extremely proud to be able to announce our plans for the current season and for 2022 with the goal of optimising the contributions of our three riders to the utmost,” Aprilia CEO Massimo Rivola said.
“Alongside our confirmed rider, Aleix [Espargaro], it is our pleasure to welcome a talented athlete like Maverick to the Aprilia Racing team, who demonstrated a great feeling with the team and the bike straight away and who I am confident will be able to give his best as early as the Aragon GP.