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Old 07-11-2012, 12:29 AM   #1
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1970 25' Caravanner
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7 Pin Round to 7 Blade Trailer Connector Adapter Needed

I am new to the forum and new to Airstream. Just bought a 1970 Caravanner. Is there a thread or can someone give me advice on where I can buy the cable and connectors for the trailer lights? The Airstream has a 7 pin round and my towing vehicle has a 7 blade. Thanks.
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Old 07-11-2012, 01:37 AM   #2
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You'll need to get an adaptor from your tow rig to your trailer. I would try an RV store, they may have to order one.
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Old 07-11-2012, 02:06 AM   #3
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Yry etrailer online...they have nearly everything, and they are super knowledgeable.
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Old 07-11-2012, 06:05 AM   #4
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Quote:
Originally Posted by Jeremy9107 View Post
I am new to the forum and new to Airstream. Just bought a 1970 Caravanner. Is there a thread or can someone give me advice on where I can buy the cable and connectors for the trailer lights? The Airstream has a 7 pin round and my towing vehicle has a 7 blade. Thanks.
The flat blade connectors often fail, as one grain of sand will stop a proper connection.

The round terminal connectors don't have that problem, since the terminals are self cleaning.

Andy
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Old 07-11-2012, 06:38 AM   #5
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Davidson County, NC , Highlands County, FL
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For a trailer I had before, I got mine from Out of Doors Mart. Is this what you need?


Seven Way Trailer End with 8 ft cable 55-8587 [50-67-003] - $34.95 : Out-of-Doors Mart!, More Airstream Parts on-line than anyone!

and one of these

Pig-Tail 7-round replacement plug 55-8514 - $7.95 : Out-of-Doors Mart!, More Airstream Parts on-line than anyone!

If the original female plug in the trailer is bad, be very careful removing it. The plug housing might be made of a metal which will burn. Grinding or heating with a torch could set it off.
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Old 07-11-2012, 07:22 AM   #6
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Disconnect the house battery common/ground terminal before removing the trailer end plug. Especially if it is made of metal.
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Old 07-11-2012, 07:52 AM   #7
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I have used my GM flat blade connector for 10 years without a problem. The flat blades are also self cleaning as you push the plug into the connector. Sand is easily dislodged. By not changing to the round pin, your tow vehicle will remain compatible to many other trailers that follow the industry standard.
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Old 07-11-2012, 12:28 PM   #8
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I haven't had any troubles with the flat blade connectors and I have them on several units. Even to connect the solar panel to my trailer.
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Old 09-06-2012, 05:51 PM   #9
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7 pin round to flat HELP

Hello good folks
Same issue as Jeremy ... if I purchase a 7pin flat to 7 pin round does the wiring set up transfer to the TVs wiring output setup as per the attached photo ... hope that makes sense ... essentially what I see on the forums for wiring on round plugs (female round Trailer) do not match what I see on my TV outlet (male rectangle TV)

Please advise if you know
Best
Rob
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Old 09-06-2012, 07:06 PM   #10
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I changed the plastic flat blade connectors for metal round pin connectors - socket and plug. The connection pattern is different, though. I think the quality and connectivity are better, although it means that hooking up to a different trailer would be a problem.
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Old 09-06-2012, 11:45 PM   #11
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Thanks Robert
There are 7 pin to 7 pin, roun to flat out there, just don't know if they change the circuitry appropriately ... photo = TV setup, diagram = round pin trailer set up
Any one know if it is the case??? ... please
Best to a GREAT forum
Rob
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Old 09-06-2012, 11:51 PM   #12
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Round pin square pin

See attached rectangular pin formation with cover denoting configuration and round pin receiver for trailer with diagram explaining wiring set up
... hopefully additional helpful information for those who might be able to help
Best
Rob
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Old 09-07-2012, 01:15 AM   #13
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Hi rob. I bought a cord from out-of-doors mart that had 7 pin round on one end and 7 blade flat on the other and it worked great! All lights and signals operated fine. Difficult to find and not cheap, you won't find them on amazon or oreillys unless you plan to use your 4 pin connector, I saw a lot of 7 round to 4 pin cords. Good luck
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Old 07-25-2013, 04:46 PM   #14
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7-pin Flat or Round?

dumb question but Do the new Airstreams have a 7-pin round or 7-pin flat trailer connector?
I'm picking my new Bambi up next week (being built this week!) and need to install a 7-pin on my Fj Cruiser TV.

Thanks
Larry Burfield
Ohio
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