The AC Compressor for Chevy Express Silverado 4.8L 5.3L 6.0L is a high-quality compressor & clutch assembly by TTenWser. This multi-groove serpentine pulley belt driven compressor comes with a 1-year manufacturer warranty and has a pulley diameter of 110mm with 4 grooves. It is interchangeable with various part numbers such as 89023458, 77376, 12624430, and 15169965. This AC compressor is designed to fit Chevy Express Silverado vehicles from the years 2000 to 2020, ensuring reliable and efficient cooling performance.