The Command PRO 23.5 HP 725cc Engine is a vertical-shaft engine built for demanding commercial applications. Designed for Toro and Exmark zero-turn mowers, this V-twin powerhouse combines an overhead valve design, full-pressure lubrication, and a dual-element air cleaner to deliver exceptional reliability and long service life. With a durable aluminum block, cast-iron cylinder liners, and precision-balanced crankshaft, this engine features a Digital Spark Advance Ignition for consistent power and easy starts in all conditions.