Ideal for smaller acreage lawns, our E Series riding mower engines are powerful, yet lightweight. Their performance-enhancing features deliver more than you'd expect, at a great value.Advanced Debris Management - Helps our engines run cleaner and longer by deflecting and ejecting grass and debris, providing a longer life.Anti-Vibration System® (AVS®) - Counterbalanced internal components give you a smoother ride and save wear and tear on your engine, your equipment - and you.Splash Lubrication System - As the engine is running, a spinning gear with paddles slings oil on critical components for vital lubrication and reduced wear.Made in the USA of US and global parts. FEATURES Made in the USA: Made in the USA of US and global parts. Anti-Vibration System - AVS®: Provides a smoother ride and more comfort. Advanced Debris Management System: Keeps the engine clean by deflecting and ejecting grass and debris for a longer engine life. SPECIFICATIONS Model Number: 21R8 Gross Horsepower (ft-lbs)*: 11.5 Engine Displacement (cc): 344 Number of Cylinders: Single Engine Configuration: Vertical Shaft OHV Engine: true Length (in): 17.8 Width (in): 15.5 Height (in): 12.9 Weight (lbs): 66 Bore (in): 3.44 Stroke (in): 2.26 Engine Fuel: Gasoline Fuel Tank Capacity (gal): 0.7 (optional) Lubrication System: Dura-Lube Splash Lubrication Oil Capacity (oz): 48 Oil Filter: N/A Starter: Electric Start, Recoil Optional Air Filter: Cartridge Air Cleaner with Advanced Debris Management Muffler: Optional Fuel Shutoff Valve: Optional