Toro 92-6888 Lawn Mower Engine Pulley The Toro 92-6888 Lawn Mower Engine Pulley helps transfer engine power to the mower's drive or cutting system for proper operation. This replacement engine pulley is designed to mount onto the engine shaft and work with the mower's belt system. It works by rotating with the engine and driving the connected belt, which transfers power to the approp... https://www.wholetoolbox.com/toro-92-6888-lawn-mower-engine-pulley/92-6888.html