ACDelco Professional A/C Compressors pump refrigerant through the system and are a high quality replacement for many vehicles on the road today. The compressor is typically engine driven via the accessory belt, and a clutch on the compressor is used to engage and disengage the ...ACDelco Professional A/C Compressors pump refrigerant through the system and are a high quality replacement for many vehicles on the road today. The compressor is typically engine driven via the accessory belt, and a clutch on the compressor is used to engage and disengage the compressor.
Hybrid vehicles are typically equipped with an electric motor driven compressor. The compressor draws in cool refrigerant gas from the evaporator and pumps it to a much higher pressure.