McLaren's Stoffel Vandoorne will take a five-place grid penalty for the United States Grand Prix after Honda chose to fit a new Formula 1 internal combustion engine.
McLaren-Honda had hoped to avoid penalties for this weekend's race at Austin, as the outfit feels it represents the best chance of a strong result in the remaining races.
But because of high mileage on Vandoorne's engine, Honda has elected to change the unit, which will be his eighth ICE of the season, triggering a five-place penalty.
Honda has been pushing on with development and Autosport understands the internal combustion engine has small modifications to improve performance.
The Japanese manufacturer has decided not to change any of the other components to minimise the penalty for the Belgian.
Vandoorne will run the new unit from first practice on Friday at Austin, with team-mate Fernando Alonso running the same engine he used at the last race in Japan.