Komatsu 203-979-6813 A/C Unit Assembly

The Komatsu 203-979-6813 A/C Unit Assembly (Unit A Airco) is an original equipment manufacturer HVAC module designed for installation on Komatsu hydraulic excavators and motor graders. This assembly integrates the compressor, evaporator core, blower motor, expansion valve, and housing into a single serviceable unit. Primary application covers Komatsu PC100-6, PC120-6E0, PC120-6H, PC120-6S, PC130-6, PC350-6, PC400-6, and PC450-6 excavators, as well as GD355A-3, GD405A-3, and GD405A-3S motor graders. Compatible engines include the Komatsu SAA4D102E-2 and SAA6D125E-2 diesel engines. The unit operates on 24V electrical systems and utilizes R134a refrigerant. Supersedes part numbers 203-979-6812 and 203-979-6810.