Kenworth has introduced new automatic transmission offerings for T800 customers in construction and shorthaul applications with high-horsepower requirements. The T800 can be ordered with Allison 4000 and 4500 series transmissions when spec’d behind Cummins ISX engines with torque ratings up to 1650 lb ft.
These transmissions are especially designed for rugged duty, says Kenworth. According to Allison, their torque converter technology provides seamless full-power shifts, which helps trucks to work within the best duty-cycle speeds which can lead to greater productivity and fuel efficiency.

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