The part number always starts with the letters PIG to denote that it is a pigtail. Another dash is followed by a single letter code. By type: Click on an appropriate item on the "Select the class" on the left. It's a short wire with a connector installed on one end, such as a spade or ring terminal, while the other is left bare or blank. These connectors can be a big help when you need to connect two wires, repair damage, or extend a. The latest in the line of Ford Flex Probe Kits, this newest release includes all the probes from the previous “D” kit, but now adds two each of the Micro Pin (. Each shape corresponds to a specific type of connection in your vehicle.