Allison Transmission Holdings Inc. posted a higher quarterly profit, helped by strong demand for on-highway commercial vehicle products worldwide.

The company, which went public in March, makes automatic transmissions for trucks, motorhomes, buses and military vehicles.

Net income for the quarter rose to $58 million from $36.9 million last year. Net sales rose 16% to $601.9 million.

Sales at the on-highway segment in North America increased 34% to $219 million, while it rose 16% to $66 million outside the region.