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Old 08-30-2016, 02:03 PM   #1
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7 pin connector

I am having trouble finding a solution to this one. I have a 7 pin connector on my Dutch Star and there is a 7 pin connector on my Jeep Wrangler. The problem is that all of the cables I'm finding are either 7 to 4 or 7 to 5. I'm even finding 7 to 6 pin but there are no 7 to 7 pin cables to be found.
Do I own a freak of nature with both connectors being 7 pin?
I'm sure that the Jeep connector is only using 4 maybe 5 wires and the easiest way around this would be to replace the Jeeps connector but I'd like to just find a cable with 7pin on each end. Any ideas?
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Old 08-30-2016, 02:55 PM   #2
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Quote:
Originally Posted by opeltodd View Post
I am having trouble finding a solution to this one. I have a 7 pin connector on my Dutch Star and there is a 7 pin connector on my Jeep Wrangler. The problem is that all of the cables I'm finding are either 7 to 4 or 7 to 5. I'm even finding 7 to 6 pin but there are no 7 to 7 pin cables to be found.
Do I own a freak of nature with both connectors being 7 pin?
I'm sure that the Jeep connector is only using 4 maybe 5 wires and the easiest way around this would be to replace the Jeeps connector but I'd like to just find a cable with 7pin on each end. Any ideas?
Well Sir,
Your Jeep, equipped with a 7 pin for the pig tail, is a bit odd, to say the least. Yes, normally they're setup with a minimum of a four pin flat or, a 5 or 6 pin round. Some have the 4 pin round but, not too many.
And, yes the easiest way out would simply be to change one one the ends of the pig tail and, the receiving part on the Jeep, to a 6 pin round. I use those all the time because, they're more industrially constructed then anything smaller and, they're labeled for all the functions.

I'm going to assume that you did not setup the Jeep for towing otherwise, you'd not be here asking about this. It could be that the person who did set it up, using the 7 pin, just didn't know any better, or, has more functions in that 7 pin plug, than the normal Right turn/brake, Left turn/brake, tail/marker and ground.

A simple test would be to find the ground on that 7 pin and then, supply 12VDC to each other pin and find out what each pin represents. If you only find that you locate the above functions I wrote, then the other 3 pins aren't used. This is all a guess so, again, some tests might be in order to see if you actually need that 7 pin on that Jeep. If not, then you're wasting your time looking for a pig tail with twin 7 pin ends.

And this all means you'll need to change it to whatever style you like. Good luck.
Scott
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Old 08-30-2016, 03:05 PM   #3
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Make one. It's not that tough and you end up with a better cable. Use the cable with one end attached, like is used for a travel trailer, and buy and attach the other end. BaDaBing, BaDaBoom; Cable! Parts available, at CW or any rv or trailer supply house.
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Old 08-30-2016, 03:11 PM   #4
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For our Jeep Grand Cherokee we used a 7-blade connector at the Jeep end. Reason, 7-blade connectors are heftier and self cleaning when the plug is inserted.

Since we didn't need all 7 wires, we used 7-blade to 4-flat coiled cables cutting thee 4-flat end off and installing a 7-blade connector.
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Old 08-30-2016, 03:58 PM   #5
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Just change the Jeep connector to a standard six pin. Should you ever need a new one you can simply get one at any Camping World or RV dealer. Off the shelf, no mods necessary.
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Old 08-30-2016, 04:25 PM   #6
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I stopped using 4 and 6 round connectors because the pins would lose their spring and the the contact collars back out of the receptacle. That is why I use 7-blade connectors or 4-flat. The 4-flat contacts are better secured than the round connectors.
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Old 08-30-2016, 07:41 PM   #7
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I made my own 7-wire cable, with parts from etrailer.com. I used a cable with molded end and an Endurance connector, both made by Hopkins. The cable had 10 AWG battery and ground wires.

Caveats and suggestions:

1) the colors of the wires may not match "the standards."
2) it's difficult to stuff the wires inside the connector shell.
3) I don't trust putting the wires under retention screws, so I crimped on ring terminals
4) coat the wire ends inside the shell with dielectric grease before assembly
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