Remanufactured from Weller, the Allison AT542 transmission delivers smooth shifting, dependable power transfer, and proven durability for medium-duty trucks, buses, and vocational applications. Built to OEM Allison standards, this model features multiple forward speeds, a hydraulically controlled design, and a rugged construction engineered for long-lasting performance under demanding conditions. With Weller’s precision remanufacturing process, the AT542 helps fleets reduce downtime, lower maintenance costs, and maintain reliable operation mile after mile.