Horse trailer wiring help

Holistic

Member
Mixed Farmer
I have a problem, i currently have a 7 pin plug on my horse trailer and need to change it to a 13 pin, but the trailer has 2 thick wires while the 13 pin plug looks like it will only take 1 thick one, what are my options?


thanks!

Andrew
 

335d

Member
What colour are the two thick wires. White should be heavier than the others, as it’s the earth and all the other signals return on this wire.
From what I remember though, all pins have the same size hole for the cable, so not sure what you means by it will only take 1 thick wire.
As always, a few pictures helps a lot
 

pettsy

Member
Location
Derbyshire
Wire existing cables into a junction box at the front of the trailer. Run a shorter cable from junction box to connect to vehicle with 13pin plug, then if it ever gets damaged it’s simple to replace.
 

Fergieman

Member
Mixed Farmer
Location
Northumberland
Get a coiled lead and a junction box.
1645645687518.png
 

Farmer_Joe

Member
Livestock Farmer
Location
The North
You can buy maypole junction boxes off eBay for just over a tenner the wire above would go straight into it. If it’s ifor should have said junction box already at front both mine do
 

Dave W

Member
Location
chesterfield
I have a problem, i currently have a 7 pin plug on my horse trailer and need to change it to a 13 pin, but the trailer has 2 thick wires while the 13 pin plug looks like it will only take 1 thick one, what are my options?


thanks!

Andrew
Try putting the 2 wires into the plug. I'm sure they'll fit.
I'd guess the second wire is the front corner markers. It's a very lazy cheap way of wiring imo
 

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