Air Suspension Compressor by Dorman®. Quantity: 1 per Pack. Rigorously tested for sustained, secure performance by a team of product and quality engineers, Dorman’s Suspension Compressor eliminates excessive suspension sag, restoring vehicle handling and safety. It is available as a complete assembly with all new components, including the motor and dryer. Since this part is a direct replacement, the exact fit adds an additional level of convenience.