Coleman Pump Repair Kit and Replacement Pump Cup #'s 6 and 7 on the Parts Diagram.
Having trouble pressurizing your Coleman Appliance. It maybe that your pump cup is worn out, or the pump is "Shot". These are the replacement parts for the pump assembly. Pump kit includes a new pump cup. Pump cup is a replacement for newer appliance with neoprene pump cup. If you have a older leather pump cup, then you'll have to replace the whole Pump assembly.