EMAX 17-Gallon 8-HP Single-Stage Portable Air Compressor w/ Honda Engine. It begins with a commercial grade, Honda GX engine that saves your knuckles with its electric starter. EMAX Cool-Tek technology lets the compressor run cooler than other compressors- and running cooler prolongs the compressor's life. It also reduces moisture build-up and prolongs the life of the pump. The large tires easily handle rough terrain on the job site, and serve as vibration dampeners.