The Simplicity 1717664 is a genuine OEM electromagnetic PTO clutch designed for various Simplicity lawn and garden tractors. This 12V electric clutch ensures smooth and reliable engagement of power take-off driven attachments, critical for efficient mowing and other operations. It features a 25.4 mm (1-inch) shaft bore and a 152.4 mm (6-inch) pulley diameter, compatible with 12.7 mm (1/2-inch) belts. Constructed for durability and precise performance, it replaces several OEM and aftermarket part numbers, providing a direct fit for specified models.