Heavy Equipment Parts stocks pilot valves for excavators and heavy machinery. The pilot valve reduces main hydraulic pressure to a lower pilot pressure signal used to control the main control valve spools a faulty pilot valve causes unresponsive or jerky machine movements. Our pilot valves are manufactured to OEM pressure reduction and flow specifications for precise joystick-to-machine response. Compatible with Komatsu, Caterpillar, Hitachi, Hyundai, Kobelco, Volvo, Doosan, and other major brands. Available from our Sydney warehouse with fast delivery Australia-wide.