Easily swap out the old compressor in your seat with this Grammer compressor. Over time & with a lot of use, it is not uncommon for compressors to fail. This kit includes air compressor parts, wires & connectors. Adjusts the seat height, 174 is the maximum PSI for 20 seconds. Includes instructions & hardware for an easy installation.Use w/ S8301453 & S8301454 Grammer Seats.