The plastic plunger is designed to hold the slush in each tank. It also holds in the 2 rubber o-rings that stop any syrup leaking out. This part will often discolour over time and is usually changed to improve the aesthetics of the machine.
Please note Ugolini machines have been supplied by numerous different brands across the world so this part will also fit Taylor, BRAS and Noisy Drinks slush machines.
This is a Genuine Part Supplied by the Original Manufacturer.