Im having a bear of a time finding a part number for the white ink valves on my UJF-6042 . These have a needle that penetrate the white ink cartridges when you push them into the slots . The valve and needle is used on the oldstyle UJF-6042 white ink re circulation sys. I can find the valve base part # M602854 but its only the plastic body and doesn't contain the parts - Ive got a cracked needle and a leaky machine and its not much fun . Any help with the right part number to order is much appreciated. Thanks and Cheers