25HP V-Twin 4-Stroke Vertical Shaft Petrol Engine For Zero-Turn Ride-On Mowers

PTO shaft rotation: counterclockwise (vertical output). Bore×Stroke: 82×70mm. Shaft thread pitch: 7/16-20 UNF-2B. Bolt pattern: our engine has Briggs & Stratton, or Honda bolt pattern. Refer to the thumbnail photos provided to check.