Suncore's Air Compressor and Dryer Assembly is precision engineered to meet the performance and installation fit of the OEM suspension air compressor found in your Z55 Autoride. The air compressor directly plugs into the current air lines and electronic controls and even has a replacement plug in case yours is damaged or worn. A pressure transducer is also built in, allowing your air suspension to monitor and solve unbalanced air springs.Autoride air suspension has many features that give GM SUVs the characteristics people love. When these features begin to deteriorate, such as the trunk sinking when small loads are put in the back or the ride height falling and causing scraping, it is important to fix the issue before expensive damage is done. If the air spring and shock absorbers are in good shape, the air compressor may be the culprit of failing suspension. Suncore's Air Compressor for GMT800 & GMT 900 Platform GM SUV Trucks is the best option for OEM performing replacements without the OEM price.