Horse trailer wiring help

[Holistic]

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

 

[jh.]

Adapter plug

Waterproof Towbar Towing Socket 13 to 7 Pin Plug Trailer Truck Caravan Electric Adapter Converter : Amazon.co.uk: Automotive

Waterproof Towbar Towing Socket 13 to 7 Pin Plug Trailer Truck Caravan Electric Adapter Converter : Amazon.co.uk: Automotive

www.amazon.co.uk

 

[nonemouse]

Halfords, screw fix even Amazon do adaptors might be easiest fix if existing plug works as it is

 

[Holistic]

Adapter plug

Waterproof Towbar Towing Socket 13 to 7 Pin Plug Trailer Truck Caravan Electric Adapter Converter : Amazon.co.uk: Automotive

Waterproof Towbar Towing Socket 13 to 7 Pin Plug Trailer Truck Caravan Electric Adapter Converter : Amazon.co.uk: Automotive

www.amazon.co.uk

Thats what i was using already, but now its started to cutout all the time so figured it was time to try and change it

 

[Bobthebuilder]

Junction box or 1 new length of 7 core cable from front to back

 

[335d]

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]

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]

Get a coiled lead and a junction box.

 

[Farmer_Joe]

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

 

[Lincsman]

Has the trailer reversing lights fitted even if not working?

 

[Dave W]

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