Cat solenoid valve assemblies are electromechanical devices designed to open or close the valve.Attributes: 3-way, 2-position (Hydraulic) Assembly consists of valve, yoke, coil and valve kit 4 hole mount Pigtail with 2 Pin connector 24 voltsApplications:Used as needed in various systems of heavy-duty equipment, and are application specific. Consult your owner's manual or contact you Cat Dealer for more information.