Max Verstappen will be hit with a five-place grid penalty for Sunday's Belgian Grand Prix.
The runaway championship leader will start no higher than sixth on the grid, after exceeding his gearbox limit.
Drivers are limited to four gearboxes per season and Verstappen is already on his fifth.
The 25-year-old is on the hunt for an eighth straight F1 win, which would put him behind only Sebastian Vettel's record of nine consecutive victories.
Verstappen has opened up a 110-point championship lead, while his Red Bull team have won the past 12 races.
The Dutchman powered through the field for victory at Spa last season from his grid position of 14th so another triumph is certainly not out of the question despite the penalty.
Drivers will head into a hectic weekend at Spa wary of more heavy rain after poor conditions battered the track yesterday.
Dutch teenager Dilano Van 't Hoff died at Spa earlier this month, after a crash in a rain-affected Formula Regional European Championship race.
Mercedes driver George Russell admitted heavy downpours leave F1 stars with next to no visibility, significantly heightening on-track
dangers.
"Obviously to have a race cancelled is not perfect for anybody, but we don't want to see another incident like we have just seen," said the 25-year-old Brit.
"When you have 20 cars on track at once, anybody from third position backwards cannot see 20, 30, 40 metres ahead of them.
"We have no visibility whatsoever. To give it some perspective, it is like driving down the motorway in pouring rain and turning your wipers off."
Ferrari's Charles Leclerc echoed Russell's views, insisting drivers must accept any safety measures enforced.
"We are not exaggerating when we say we see nothing — we really don't see anything," said Leclerc.
"Easy to say, much more difficult to find a solution. Safety comes first. And we shouldn't complain if we don't have any laps because it is not safe."
