XT5 20-25 3.6L. The compressor will include the compressor itself and the clutch. The clutch may be noisy during initial break-in from rust buildup. ACADIA 18-22 3.6L, w/o rear AC. LACROSSE 17. AUTOMATIC TRANSMISSIONS WILL HAVE THE FILTER REMOVED AND IT MUST HAVE A NEW FILTER INSTALLED WITH NEW FLUID TO FUNCTION.