What your Ford DB2 Core should "Look" like

Customers are always asking specifically about this "fitting" and whether to keep it or send in on a pump core. It is a Return Fuel Line Connector and an integral part of the pump. It is not optional and should be sent in with your core.  All Ford IDI Moose Pumps will come with one installed. 

This is the return fuel line connector that is missing on the sample core.