These V-Twin engines are specially designed for zero turn mowers and other high-debris applications to endure extended use in extreme conditions. Cyclonic air filtering keeps dirt out and extends engine life. The V-Twin design delivers more power, is naturally balanced for less vibration, runs cooler and cleaner, and includes Electronic Fuel Management for easy starting - just like a car.5-Step Cyclonic Debris Management extends engine life.Premium oil and fuel filters protect the engine.Reliable, automotive-style starting.Made in the USA of US and global parts. FEATURES Made in the USA: Made in the USA of US and global parts. Electronic Fuel Management: Starts as consistently as your car. Patented 5-Step Integrated Cyclonic Debris Management System: Extended durability under heavy debris conditions. V-Twin Engine: For more power, comfort and durability. SPECIFICATIONS Model Number: 44X9 Gross Horsepower (ft-lbs)*: 25 Engine Displacement (cc): 724 Engine Configuration: Vertical Length (in): 19.3 Width (in): 17.6 Height (in): 15.7 Weight (lbs): 86.5 Stroke (in): 2.89 Lubrication System: Full Pressure Lubrication with Oil Filter Oil Capacity (oz): 67 Air Filter: Integral Cyclonic Air Filter Compression Ratio: 8:5:1 Ignition System: Computer Controlled Electronic Ignition Bore: 3.12 Warranty Commercial Product Info: 3 Year Commercial Limited