Caterpillar 1226015 Expansion Valve Assembly

The Caterpillar 1226015 is a block-type thermal expansion valve designed for air conditioning systems in heavy equipment. It regulates refrigerant flow into the evaporator to maintain optimal system pressures and cooling performance. The valve features an O-ring flange mount configuration for a secure, leak-free connection. It is compatible with both R12 and R134a refrigerant types. This component serves as a direct replacement for OEM part numbers 122-6015, 329-492, and 322-5981. It is engineered for durability in off-highway operating environments, ensuring reliable climate control for operator cabins in excavators and material handlers.