Tecumseh 37785 Lawn Mower Crankshaft

The Tecumseh 37785 Lawn Mower Crankshaft converts the piston's reciprocating motion into continuous rotary motion that drives the engine output. Located within the crankcase, it rotates on bearing surfaces while connecting to the piston through the connecting rod. The crankshaft also supplies mounting locations for components such as the flywheel and output drive, transmitting rotational force throughout the engine. Its journals and crank throws coordinate piston travel during each combustion cycle while maintaining the mechanical relationship between internal moving parts. It operates with the connecting rod, bearings, flywheel, camshaft drive, and crankcase to transfer engine power to the mower drive system.