w/ Clutch Every new Compressor design is put through a rigorous durability test that simulates operating 50,000 miles in the most extreme conditions before being approved for production. 100% of compressors are put through a series of function, noise and leak tests - including vacuum decay and pressure decay. Additionally, all New compressors are helium mass tested. All compressors are subject to random 21 hour production validation tests to ensure consistent quality standards. Top 10 Four Seasons Tech Line Questions Compressor Failures Lubrication Failure Replacing the A/C Compressor Assembly vs Clutch Assembly Restricted Discharge Line Why Clean or Change the Expansion Valve When Replacing a Compressor? Why are the terms of my A/C Compressor warranty so specific? FOUR SEASONS Warranty Information Compressors 2 years/24,000 miles. Heater cores and fan clutches 12 month/12,000 miles. All other parts 120 days. Commercial, heavy duty, or fleet use - Compressors 12 month. IMPORTANT A/C COMPRESSOR WARRANTY NOTE: In order to ensure that proper warranty credit is issued if needed, the compressor installation instructions must be adhered to. All compressor defects must show proof of purchase of an Orifice Tube/Expansion Valve, Drier, and Approved A/C System Flush or a Work Order showing the purchase of these items and that the system was flushed using approved procedures. Warranty Details