New HST Plus Hydrostatic Transmission

Kubota's advanced technology has made operating a tractor as easy as driving a car! Tackle any task with ease and efficiency. 
With startling precision, the new HST Plus's automated control of both the HST pump and motor gives you optimal performance, regardless of the task, working conditions, or operator expertise.
Kubota's new HST Plus offers professional and novice users maximum HST performance by giving optimal control of both the hydraulic pump and the drive motor, all with simple operation.
Thanks to new functions that regulate the pump swash plate and can adjust the motor swash plate between two stages, you can get the most out of the HST Plus, whether you prefer manual or automatic control. This new technology incorporates the most popular light and smooth pedal feel of Kubota's traditional HST to provide the Grand L40 with a more comfortable, easier-to-operate and higher performance HST than ever before.
Load Sensing
The Grand L40 boasts a revolutionary Load Sensing feature that, if it detects a drop in engine RPM, will automatically regulate HST pump and motor activity. This feature makes operating the L40 easy for almost anyone.  
Hydro Dual Speed (H-DS) HST Hi-Lo Function
Kubota's HST Plus gives you more control. Already featuring three range shift speeds, it now includes a lever to shift between high and low speeds in each range, expanding your options to six total speeds. Once your preferred range shift speed is set, you can easily shift the H-DS between the high and low speeds while moving.
And with a simple touch of the Model Selection button, you can activate the Auto H-DS for automatic Hi/Lo shifting. 
Whether you're doing loader work or driving up a slope, you'll appreciate this newfound versatility and efficiency.