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Old 05-13-2017, 07:36 PM   #1
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Name: John
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seven blade connectors

Is there an alternate type of connector that has less issues? I have never been crazy about the design of seven blade connectors. Is there any other options?
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Old 05-13-2017, 08:14 PM   #2
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Seven pin connectors are not a bad setup, but both male and female components must be maintained in good condition, like anything else.
In Minnesota, the tow vehicles, and their 7 pin sockets, used in the winter, are degraded by the ice melting chemicals rapidly. This solution corrodes and dissolves electrical parts quickly. That's the biggest failure of the components. Otherwise, they work quite well.
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Old 05-13-2017, 09:20 PM   #3
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Nothing really wrong with anything that is maintained.
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Old 05-13-2017, 09:44 PM   #4
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Just changed mine on the van after many years, the plug was badly corroded the new one is now packed with dielectric grease and we don't have much in the way of issues with road salt in winter here in Vancouver,BC.
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Old 05-14-2017, 05:51 AM   #5
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As others have mentioned, taking care of the 7 pin will virtually eliminate problems. How and where the trailer plug is stored when not connected is a big thing. Keep it off the ground, and even put it in a holder, or use a cap, to keep it from the elements. A thin coating of dielectric grease will inhibit corrosion quite well too, I like to wipe a bit on both sides of the connection.
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Old 05-14-2017, 08:09 AM   #6
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There is a heavy duty connector available. Only problem is that the regular RV plug is more common so switching TVs or trailers becomes an issue.
look here...
https://www.etrailer.com/Wiring/Poll...FY5MDQodkE4KHA

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Old 05-14-2017, 08:40 AM   #7
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Normally the corrosion occurs on the backside where the wires attach to the plug, the plugs are not weather resistant and that's the side I pack with dielectric grease.
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Old 05-14-2017, 08:47 AM   #8
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Quote:
Originally Posted by Daniel A. View Post
Normally the corrosion occurs on the backside where the wires attach to the plug, the plugs are not weather resistant and that's the side I pack with dielectric grease.
No need to pack it in, just a thin coat does the same and is less messy. Even permanent connections, like the backside of the plug, can benefit from a bit of dialectic grease.

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Old 05-14-2017, 03:53 PM   #9
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Seven Pin Connector

I use the die electric grease on mine. Have a tube I got from Western Snow Plow years ago. Use it on the light bulb bases as well. Works great.
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Old 05-14-2017, 04:15 PM   #10
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I squirt my 7-blade with some DeOxit before each trip.
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Old 05-14-2017, 09:14 PM   #11
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I use water displacement formula # 40, works great.
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