7 pin connector extension

[bbcubed53]

I need approximately 18 inches of extension on my 7 pin wiring harness. Is there a reason I should not cut and and splice in enough wiring for the additional length. I understand all of the wire needs to be the correct gauge. I also understand it would need to be watertight i.e tape and heat shrink. I have not been able to find any posts addressing this. I know there are extensions that can be purchased but they all come the female end that needs to mounted to something and 3 ft is the shortest one I've found.

[10Smiles]

Yes, your solution of splicing a short extension onto your pigtail should work just fine. Soldering and heat shrinking each wire, then heat shrinking the entire cable should be very robust. I would try to get a length of actual pigtail wire if possible, then the color code and gauge would be right.

[Fungus]

Buy one of these. I put mine under the propane cover. Lots of threads about this.

[JJTX]

Originally Posted by bbcubed53

I need approximately 18 inches of extension on my 7 pin wiring harness. Is there a reason I should not cut and and splice in enough wiring for the additional length. I understand all of the wire needs to be the correct gauge. I also understand it would need to be watertight i.e tape and heat shrink. I have not been able to find any posts addressing this. I know there are extensions that can be purchased but they all come the female end that needs to mounted to something and 3 ft is the shortest one I've found.

Skip the SOLDERING. Thats 1970. Find some POSI LOCK Connectors for the wire size you need. And skip the black gooey Tape!

[glcmranger]

Go to the Propride 3P website. They sell 7-way cable extensions...

[kittmaster]

Originally Posted by JJTX

Skip the SOLDERING. Thats 1970. Find some POSI LOCK Connectors for the wire size you need. And skip the black gooey Tape!

What I don't get about these are how exactly they guarantee the surface area contact of the entire conductor as you fan out the stranded wires. If 3 or 4 are "in the wind" inside the connector, doesn't that just decrease the current capability of the wire as a few strands may not be in contact with the cone?

[richard5933]

Originally Posted by kittmaster

What I don't get about these are how exactly they guarantee the surface area contact of the entire conductor as you fan out the stranded wires. If 3 or 4 are "in the wind" inside the connector, doesn't that just decrease the current capability of the wire as a few strands may not be in contact with the cone?

Looks like the metal cone inside the barrel will ensure good contact with all the strands. Here's video I found about them:

https://www.youtube.com/watch?v=TA3q_8UYpm8

That said, I'm not sure I'd use these to splice the 7-wire cable as they would create a huge bump in the cable with 7 of them.



My choice would be to install a new 7-wire cable and not splice it at all. For all the effort it takes to do a proper splice, it would be possible to just replace the whole thing. The only obstacle might be gaining access to where the 7-wire cable connection is inside the trailer, but if access is possible then just replace the whole thing.

[link2dks]

+1

Propride 18 inch extention

https://store.propridehitch.com/7-pi...cal-extension/

Dave S

[solomon.m]

I bought this 18" extension from Hensley and used it until I replaced my 7-pin cable with a longer length and junction box suggested in post #3 above

[LilPeanut]

I had an extension as well but I didn’t like the extra point of failure so I eventually replaced my entire cord with a longer, more flexible and blue one!

[Fungus]

Originally Posted by LilPeanut

I had an extension as well but I didn’t like the extra point of failure so I eventually replaced my entire cord with a longer, more flexible and blue one!

I lived with the extra point of failure until it failed too often; hence, the junction box. Bonus is that I attached the TPMS booster to the running lights wire in the junction box, as many others have done.

[bbcubed53]

Originally Posted by Fungus

Buy one of these. I put mine under the propane cover. Lots of threads about this.

I like this idea, does the color scheme match the AS wiring scheme?

[Fungus]

Originally Posted by bbcubed53

I like this idea, does the color scheme match the AS wiring scheme?

Color scheme matched my trailer. Best to verify it.

I bought the three most recommended junction boxes with eight feet of cable. They were identical in almost every way.