Item Type: Excavator Air Conditioner Controller OEM: 157-3210, 146430-822 Material: PC Applicable Model: For CAT 320C 325C 330C Package List 1 x Excavator Air Conditioner Controller Please match the appropriate model type before installation and use. 1Easier Control: Equipped with this control panel, you'll find it easier to control the air conditioner of your excavator. 2Flexible Using: Able to be perfectly applied to for CAT 320C 325C 330C excavator, with high work efficiency and stability. 3Great Material: Mainly made of premium PC material with a sturdy structure, reliable and durable in harsh road and weather. 4The OEM Number: The OEM numbers are 157-3210 and 146430-822, please do double check the OEM number before your purchase. 5Easy to Install: Comes with a compact size and a light weight as well, the installation is very convenient to complete.