Operators can expect easy starting and consistent running temperatures from this top-of-the-line mower. Liquid cooling and Electronic Fuel Injection from Kohler’s 31-hp fuel-injected Aegis engine, as well as better fuel economy, are advantages over comparable air-cooled engines. Key Specs: 31-HP, Kohler Aegis™ V-Twin liquid-cooled, EFI engine Electric radiator fan with reversible self-cleaning action Splined PTO drive shaft with Quick-Disconnect Coupler 7 MPH Ground Speed 4.7 gallon fuel tank