#HHK20-36990 Hydraulic Filter

Kubota HHK20-36990 – Hydraulic Filter (HST Transmission)

The HHK20-36990 is a genuine Kubota hydraulic filter designed for use in hydrostatic (HST) transmission systems. This filter plays a critical role in keeping your hydraulic system clean by trapping contaminants before they can cause damage to sensitive internal components like pumps, valves, and drive motors. A clean hydraulic circuit means smoother operation, longer service life, and better performance—especially under load.

This filter is used on a wide range of Kubota equipment, including the BX series compact tractors, as well as select ZD series zero turns.

If your Kubota has an HST transmission, regular hydraulic filter changes are non-negotiable. Over time, contaminants from normal wear can build up in the system. Replacing the HHK20-36990 according to your service schedule helps prevent sluggish performance, overheating, and premature wear.

This is an OEM Kubota part—built to the specs your machine needs, with the right filtration media and pressure ratings to keep everything flowing as it should. Don’t risk downtime with a generic filter. Stick with the original, and your hydraulics will thank you.