AC compressor is the heart of the vehicle's air conditioning system. It compresses and circulates refrigerant (such as R134a or R1234yf) to enable cooling. Below is a detailed breakdown of its functions, types, and maintenance. Fitment: Ram 1500 5.7L 2014-2018 Ram 1500 Classic 5.7L 2019-2022 Features: Powerful Cooling for Comfort Quiet and Smooth Operation Each product is quality inspected and 100% pressure/leak tested Manufactured to OEM Quality Standards and Precision, High Temperature and Corrosion Resistant Simple and convenient installation, fine workmanship, docking every vacancy of the original car .