Kenworth now provides Allison 2000 and 2400 Series automatic transmissions for its T300 medium-duty trucks. Both models are fully automatic, five-speed overdrive transmissions with lockup and a 32-bit microprocessor. Power take-off (PTO) drive gears are optional.
The Allison transmissions are mated to Caterpillar's 3126 engine, rated at a maximum 545 foot-pounds of torque or less. A Spicer SPL 100 driveline is also part of the package.