4190002757 4130002904 Evaporator Assembly for SDLG wheel loader

Internal Components (Complete Assembly, One Unit)

Hydrophilic aluminum foil heat exchange fins + internally threaded copper tubing core

One-piece plastic evaporator housing, inlet and outlet copper pipe joints

Built-in expansion valve mounting position, sealing rubber ring

Cabion mounting bracket (original molded holes, direct installation without damage)

Material Advantages

Pipes: Internally threaded copper tubing, high heat exchange efficiency, vibration resistant, and less prone to refrigerant leakage

Fingers: Hydrophilic coated aluminum foil, prevents condensation buildup, corrosion resistant

Shell: High-strength flame-retardant engineering plastic, suitable for high and low temperature environments on construction sites

System Compatibility: Single-cooling air conditioner, compatible with R134a environmentally friendly refrigerant

IV. Functions and Roles

Installed inside the dashboard of the construction machinery cab, the core of the air conditioning system:

High-pressure liquid refrigerant flows through the expansion valve and enters the evaporator;

Absorbs heat from the air in the cab, the liquid refrigerant vaporizes and absorbs heat, blowing out cold air;

After heat exchange, the gaseous refrigerant returns to the compressor for recirculation;

Filters and reduces the air temperature in the cab, improving comfort during high-temperature construction site operations.