Thank you for using the Support Forum. Please include the model number of the machine that the part is for and that might help someone identify the part for you. If no one responds please consider contacting your support centre for further assistance.
The part number you looking for is 059K66621. This is a Printhead Feeder for tray 3 or 4 of a tandem configuration.
Model WC75xx Family or WC78xx Family.
Hope it's help.