4426157 Original Excavator Air Conditioner DUCT for ZX200

Part number 4426157, this is the original air conditioning duct specially designed by Hitachi for the ZX200 series hydraulic excavator. Its universal models usually cover models such as ZX200-3, ZX200-5G, ZX210-3, etc. with similar platform and cab assembly designs in the 20-22 ton class. This duct is a key component of the cabin air conditioning and ventilation system, used to connect the air conditioning box (evaporator/heater core) with specific air outlet grilles. As an original sheet metal interior matching accessory, its unique curved shape, square interface size and angle are precisely matched with the internal structure of the cab. It is strictly prohibited to use air ducts that do not match the size to avoid installation difficulties, air leakage, airflow noise, or affecting the air outlet effect.

Part number 4426157, this is the original air conditioning duct specially designed by Hitachi for the ZX200 series hydraulic excavator. Its universal models usually cover models such as ZX200-3, ZX200-5G, ZX210-3, etc. with similar platform and cab assembly designs in the 20-22 ton class. This duct is a key component of the cabin air conditioning and ventilation system, used to connect the air conditioning box (evaporator/heater core) with specific air outlet grilles. As an original sheet metal interior matching accessory, its unique curved shape, square interface size and angle are precisely matched with the internal structure of the cab. It is strictly prohibited to use air ducts that do not match the size to avoid installation difficulties, air leakage, airflow noise, or affecting the air outlet effect.

Installation and Cleaning: 1 Unpacking: Be sure to remove the transparent protective film and foam pad at the interface before installation. 2. Cleaning inspection: Use a damp cloth to clean the inner and outer surfaces of the air duct and the installation interface inside the cab. Check for cracks and deformation in the air duct. 3. Alignment installation: Accurately align and smoothly push in the square interface of the air duct (4426157) with the air conditioning outlet component, usually with snap fasteners or positioning pins to assist in fixing and ensure proper installation. 4. Sealing test: After installation, turn on the air conditioning blower and test each air outlet mode (such as face, foot, defrost) separately. Use your hand to feel whether there is obvious air leakage at the air duct interface and the surface of the duct body, and listen for any airflow whistling caused by improper installation.