Is your car's air conditioner blowing warm air? This replacement A/C compressor (part number 178322) could be the fix you need. It's a brand new, complete compressor and clutch assembly designed specifically for the 2011-2013 Toyota Corolla and 2011-2014 Toyota Matrix, both with the L4 1.8L engine. It also replaces a bunch of other part numbers like 8831002710, 4472603373, etc. – check the list to make sure. It's built in an ISO-certified facility, comes pre-filled with PAG oil, and includes the necessary O-rings and sealing washers for a smoother installation. Designed for use with R134a refrigerant. Always double-check fitment for your exact vehicle using Amazon's garage tool or your VIN. The seller offers customer support if you have any issues. Get your cool air back!