Honda 13 HP GX390-QA2 1" X 3 31/64" Shaft Drilled & Tapped 3/8-24 Recoil Start, 3900 RPM Cast Iron Cylinder 6.9 Quart Fuel Tank Dual Element Air Cleaner Transistor Ignition On / Off Switch Oil Alert System Weight 69 lbs Code: 560100 Also Use: GX390U1QA2