Air Conditioning Compressor for Komatsu Excavator PC78UU-6 PC138US-2 PC228US-3

Air Conditioning Compressor for Komatsu Excavator

This air conditioning compressor provides the necessary refrigerant pressure to operate the climate control system for Komatsu excavators.

Overview

The air conditioning compressor maintains cabin comfort by circulating refrigerant through the excavator cooling system. It is engineered for heavy-duty operational environments such as construction sites and excavation tasks. This unit is compatible with Komatsu PC78UU-6, PC138US-2, and PC228US-3 models.

Built For Performance

• Heavy-duty internal piston assembly
• Sealed clutch bearing for dust protection
• High-pressure fittings for leak prevention
• Resistant to engine heat and vibration
• Optimized displacement for consistent cabin cooling

Fits These Machines

• for Komatsu PC78UU-6
• for Komatsu PC138US-2
• for Komatsu PC228US-3

On-The-Job Use

• Restoring cooling functionality during summer operations
• Replacing seized compressors in heavy equipment
• Maintaining operator comfort in enclosed excavator cabs

Good To Know

Q: Does this come pre-filled with oil? A: It is often shipped with a shipping oil, but you should verify levels and add the correct refrigerant oil before installation.

Q: Should I replace the receiver drier? A: Yes, replacing the receiver drier when installing a new compressor is standard practice to prevent contamination of the new unit.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.