Komatsu 195-Z11-5711 Expansion Valve Assembly

The Komatsu 195-Z11-5711 expansion valve is a precision metering device designed for R134a mobile air conditioning systems on heavy construction machinery. It features an internally equalized design with a 360 mm capillary tube, M16 inlet thread, and M20 outlet thread. The valve regulates superheat at a factory setting of 4 K and withstands a maximum operating pressure of 0.55 MPa. The assembly integrates a receiver drier function for moisture filtration and refrigerant storage. This component replaces OEM part numbers 195-Z11-5711 and 17M-911-4710. Major aftermarket cross-references include Kubota 33770-96120, Case-IH 163174A1, Denso 475-9020, NAPA 217159, and UAC EX10128C. It is engineered for direct fitment on Komatsu crawler dozers and pipelayers without modification.