The Husqvarna 504796301 Leaf Blower Piston helps support efficient engine operation by converting combustion force into mechanical movement. Located inside the engine cylinder, the piston moves up and down as the air-fuel mixture is ignited, transferring force through the connecting rod to drive the engine’s crankshaft. This movement is essential for producing the power needed to oper... https://www.wholetoolbox.com/husqvarna-504796301-leaf-blower-piston