The MI-T-M 46-0723 Pressure Washer Piston helps generate water pressure by moving within the pump assembly during operation. It works with the pump’s internal components to support the pressure-building cycle, allowing water to be delivered through the spray system for cleaning tasks. Proper piston function helps maintain consistent pump performance and efficient operation. Replacing ... https://www.wholetoolbox.com/mi-t-m-46-0723-pressure-washer-piston/46-0723.html