Note： This compressor comes pre-filled with the correct amount of oil. Thus, there is no need to add any additional oil to your system. Please add refrigerant to 70-80% without filling up. There may be noise if the refrigerant is added too much Description： Warranty：1 Year Mount Type: Direct Replacement Placement on Vehicle: Front Interchange Part Number:CO 4910AC, 637561, 78561, 254427, 275517 Other Part Number:2003450,0908A2001, 6511418, 7511418, 363450NA Application: For 2004-2007 Buick Rainier 4.2L For 2002-2009 Chevrolet Trailblazer 4.2L For 2002-2006 Chevrolet Trailblazer EXT 4.2L .
