2013-2019 Subaru WRX STI 2.5 Liter TURBO Engine ONLY (4 groove pulley). 2012-2016 Subaru WRX 2.5 Liter TURBO Engine ONLY (4 groove pulley). You are purchasing a new A/C Clutch Repair Kit. If your A/C Compressor is still working properly but your Clutch is not functioning like it should, then this is the right part for you.
