Raikkonen's Ferrari ground to a halt during the second period of qualifying at the Spa-Francorchamps circuit on Saturday, with the team opting to replace the gearbox.
FIA technical delegate Jo Bauer has referred the matter to the stewards as the old gearbox has failed to last the regulatory required six races, which will result in the grid drop.
Raikkonen, who would have started 14th, will only fall to 17th due to other grid penalties for Toro Rosso's Max Verstappen and McLaren's Jenson Button behind him taking precedence.
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Overall it means a grand total of 125 grid-place penalties have been handed out by the stewards for this event - affecting Fernando Alonso (55), Button (50), Verstappen (10), Romain Grosjean (five), and now five for Raikkonen.
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