Applications: 2008-2014 For Scion xD 1.8L 2009-2010 For Toyota Corolla 1.8L 2009-2010 For Toyota Matrix 1.8L For more details, pls check compatibility Chart. What is an A/C Compressor? The compressor is the power unit of the air conditioning system, which puts the refrigerant under high pressure before pumping it into the condenser, where it changes from gas to liquid. A fully functional compressor is necessary for an air conditioning system to provide peak performance. Feature: .