Starting motor (starter) is an electrical motor used to initiate the engine combustion process in vehicles, including automobiles, trucks, and marine engines. Function The starter turns the engine crankshaft to begin internal combustion. When the ignition key is turned or the start button is pressed, current powers the starter, causing it to rotate and engage with the flywheel or flexplate. This engagement provides the mechanical force needed to crank the engine and start it. Compatibility and OE Compatible with Toro Timecutter Titan HD, Z Master, Quest, Radius S-Series, and E-Series equipment. OE numbers: 133-1564, 127-9209, 133-9828, 136-7880. Built to standard OE size and mounting points to ensure proper fit and dependable performance. Benefits - Reliable engine start by turning the crankshaft and engaging the flywheel or flexplate. - Direct OE replacement for correct fit, function, and longevity. - Designed to fit select Toro models and series for consistent maintenance and uptime. Use scenarios - Replacing a worn or failed starter on a Toro Timecutter Titan HD to restore dependable starts on large lawn jobs. - Servicing a Z Master or Quest fleet to minimize downtime and keep crews productive during mowing season. - Seasonal maintenance for Radius S-Series or E-Series equipment to ensure quick, reliable starts in variable conditions.