Allison Transmission
Stewart & Stevenson has been a partner with Allison Transmission, the world leader in the design, manufacture and sales of commercial-duty automatic transmissions and hybrid propulsion systems, since 1962. We sell and service the full range of new Allison transmissions and provide genuine Allison parts for on-highway trucks, transit and charter buses, and off-highway construction, industrial, and petroleum oilfield equipment. We utilize the Allison transmission in products we manufacture for the oil and gas industry.
