Briggs & Stratton V-Twin Vanguard OHV Engine with Electric Start - 570cc, 1in. x 2 29/32in. Shaft, Model# 356447-3079-G1 Price For: Each Ignition Type: Electronic Low Oil Shut Down: No Muffler: No Air Cleaner Type: Dual Element Application: Mixers, Pumps, Augers, Saws Shaft Dia. (In.): 1.00 Shaft Key (In.): 1/4 Maintenance Frequency: Oil Change 50 Hours Features: Pressure Lubrication Agency Compliance: EPA PTO Shaft Dia. (In.): 1.00 PTO Shaft Length (In.): 2.906 Item: Gasoline Engine HP: 18 Gross Torque: 26.26 lb.-ft. Engine RPM: 3600 Shaft Orientation: Horizontal Starter Type: Recoil/Electric Cylinders: Cast Iron Gear Box: Internal Bearings: Ball/DU Air Filter: Paper/Foam Rotation: CCW Overall Height (In.): 17.235 Overall Width (In.): 16.00 Overall Depth (In.): 13.351 Shaft Length (In.): 2.906 Shaft Height (In.): 5.248 Shaft Configuration: Tapped 3/8 - 24, 1/4" Keyway Series: Vanguard Design: V-Twin PTO Shaft Height (In.): 5.248 Country of Origin (subject to change): Unknown