Lifan LF177F-BHQ 9 HP 270cc 4-Stroke OHV Industrial Grade Gas Engine with 6:1 Gear Reduction, Recoil Start and Universal Mounting Pattern Industrial grade OHV 4-stroke gasoline engine with 1" keyway shaft Compression release for E-Z starting - low oil shutdown engine protection General purpose engine with universal mounting plate: great for recreational vehicles, construction, farm, and ranch Reduces output shaft to 600 rpm Replaces Honda, Briggs, Kohler, and other brands; EPA certified