Briggs & Stratton 19L232-0036-F1 305cc 10.0 Gross HP Vanguard Engine with a 1-Inch Diameter by 2-29/32-Inch Crankshaft Tapped 3/8-24-Inch High-Mounted canister-style air cleaner has 22% more filter area than the competition Transport Guard fuel/ignition shut off system protects the engine from oil/fuel dilution during transport (205cc and 305cc models only) Commercial-style carburetor includes additional fuel passages for reliable starting and smooth running operation at a wide range of loads Metal fuel tank reduces emissions and is mounted directly to the engine block to enhance durability Buyer protection package provides three-year commercial limited warranty