UK engine production dipped 1.1% year on year in 2015 to 2,368,477 units manufactured though overseas demand rose 2% to 1,516,883.
December production fell 4.4% to 152,212 engines.
Mike Hawes, SMMT chief executive, said: "UK engine manufacturing held reasonably steady in 2015 with output at almost 2.4mi units demonstrating the underlying strength of the sector.
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"The growth of production for export we've seen throughout the year shows the importance of demand from overseas markets, with more than 1.5m engines – 64% of total volume – exported over the past 12 months."
