7-pin plug compatibility
Hello, first post here. I am kinda scratching my head over these plugs. They seem to be almost compatible, but not quite. Are all the blade type 7-pin connectors supposed to be compatible, or is th...
Forum Discussion
Paulx wrote:
Uh, that was not my question. I know where the wires go; I need to know the connector compatibility. Does every 7-pin blade type connector work with every other, or not?
NO they are NOT all compatible as you are finding out.
The 'Bargman' is pretty typical 7 pin plug used on trailer pigtails.
They make receptacles also.
'Pollak' is a typical 7 pin receptacle compatible with Bargman plugs.
Your Delphi is a good quality receptacle but the blades are thicker.
Being folded.....can you pinch them tighter so they are not as thick.
Shouldn't have to 'force' the plug into receptacle. Firm/solid push YES but not force......this is one area where a bigger hammer isn't the answer
The 12V power--top right (1 o'clock position on receptacle) is for 'charging' trailer battery.
Brakes---bottom right (5 o'clock position on receptacle) is what activates trailer brakes with truck brakes and brake controller.
On your RAM......think the 12V power is always hot. Unplug pigtail when using just trailer battery or you can drain truck battery also.
