Senci Long Life Overhead Valve EngineLow-Oil Shutdown to Prevent Engine DamageHigh Performance Direct Drive Axial PumpThe Engine's Horizontal Shaft Design Lasts Up To FIVE TIMES LONGER Than Vertical Shaft EnginesSteel Fuel TankHardened Steel Tube Chassis8" Never-Flat Wheel KitFold-Down Handle for Compact StorageLow Tone MufflerEPA Compliant