Sold on Amazon Genuine Original Equipment Manufacturer (OEM) parts! This flywheel assembly (part number 20-025-44-S) is for lawn and garden equipment engines. Flywheel assembly 20-025-44-S attaches to the top of the crankshaft. The starter engages the flywheel to spin and start the engine. Let the engine cool and disconnect the spark plug wires before installing this part. Wear work gloves to protect your hands. For Kohler.