Formula 1's smallest team Marussia have confirmed that Ferrari will supply their new V6 engines from next season.
The Banbury-based team, with a best result this season of 13th in Malaysia, will join Sauber as a Ferrari customer.
The deal will end Marussia's association with Cosworth, who will stop being a F1 engine supplier.
Marussia chief executive officer Andy Webb said: "The importance of this development to our team cannot be overstated."
Ferrari will also supply Marussia with gearboxes and other technical systems.
Formula 1 cars are to change from 2.4-litre V8 engines to more efficient 1.6-litre turbo-charged V6s from next season to conform to the new engine regulations.
Webb said: "Not only will we benefit from a customer supply from the most successful engine manufacturer in Formula One's history, but this also provides further confirmation, if it were needed, of our commitment to the sport and determination to maintain our progression towards our long-term ambitions."