The proven reliability and durability of Allison fully automatic transmissions allow them to operate effectively in demanding conditions. The 4000™ Series has been specifically engineered to meet the requirements of heavy-duty vehicles operating in highly demanding sectors, including construction, energy, mining, and defense.
4000™ Series transmissions feature six or seven forward gears, depending on the model. The gear ratios are optimized to provide the ideal balance between vehicle performance and fuel efficiency. The 4000™ Series is ideally suited for heavy-duty vehicles that require high power and substantial torque. It can operate with engines producing between 380 and 800 hp (283–597 kW) and delivers up to 2,360 lb-ft (3,200 N·m) of torque.
