8000 / 9000 Series
Allison Transmission’s 8000 and 9000 Series are designed to match the most testing operating conditions and are used in vehicles requiring an engine performance of up to 1,939 kW (2,600 hp), such as heavy dumps, stationary applications for oilfield pumps, crushers, or winch units used on rigs and cranes. With up to eight available forward speeds (six speeds for hauling applications) and up to two reverse speeds, these transmissions provide superior durability, productivity and safety. The 8000 and 9000 Series can be equipped with an optional hydraulic retarder, two Power Take-Off provisions (PTOs) and an optional provision for customer-supplied parking brakes.
Typical applications include: