This is the metal roundy rectangular relay that was originally fitted. When it has to be original, here it is. For those who need to know, there are two relays used in the Interceptors. It isn't how many prongs or pins or connectors it has, it is what those connectors do. Each pin is labeled with a number that corresponds to what it does and the 4 pin is missing a double connector that the 5 pin has. This means that you can use a 5 pin in place of a 4 but not a 4 in place of a 5.