Truck to trailer cord

[be18driver]

On a recent trip to Florida I had a senior moment, and that's all I am going to say about it, and it required a replacement of the umbilical cord between the Tow Vehicle & the Montana. I never liked the factory setup so when I ran across this one https://www.amazon.com/dp/B01M1FC3WG...roduct_details I was hooked. The cord is well made with appropriate gauge wire but what I was really pleased with was the included junction box. The only 2 changes that I made was I attached the trailer wires to the studs first with nuts and then attached the umbilical cord wires on top with a internal star lockwasher and another nut. I figured it would make it easier if I needed to replace the cord at a later date. I also added a second ground that is connected to the mounting bolt that holds the junction box to the inside of the pin box.

[BB_TX]

That really makes for a clean installation. I also had to replace mine for reasons I will not disclose but wire nutted it like the old one. That terminal block looks a lot more secure.

[CADman_KS]

Originally Posted by be18driver

On a recent trip to Florida I had a senior moment, and that's all I am going to say about it, and it required a replacement of the umbilical cord between the Tow Vehicle & the Montana. I never liked the factory setup so when I ran across this one https://www.amazon.com/dp/B01M1FC3WG...roduct_details I was hooked. The cord is well made with appropriate gauge wire but what I was really pleased with was the included junction box. The only 2 changes that I made was I attached the trailer wires to the studs first with nuts and then attached the umbilical cord wires on top with a internal star lockwasher and another nut. I figured it would make it easier if I needed to replace the cord at a later date. I also added a second ground that is connected to the mounting bolt that holds the junction box to the inside of the pin box.

That is a slick setup for when I have a senior moment. I haven't had any senior moments yet,

[Hornet28]

They are also a great replacement box if your trailer has a cheap house type junction box

[CADman_KS]

Originally Posted by Hornet28

They are also a great replacement box if your trailer has a cheap house type junction box

Is there any manufacturer that doesn't use the cheap old metal junction box?

Our 2020 3741FK has a metal box. That was actually kind of nice because I was able to extend that box to add the circuitry for making all of our clearance lights come on at night...

[MGVenne]

CADman…how difficult was it to wire your clearance lights to come on??? Details, please.

[CADman_KS]

Originally Posted by MGVenne

CADman…how difficult was it to wire your clearance lights to come on??? Details, please.

LOL...

Here's a link that explains how to do it the easy way.

Running Lights Hack

What I did, though, was I installed another 7 way recepticle in the bottom of my box with an extension. Then I put a fuse between the two pins in the link, but to make it even more useful, I have a switch in there too, so that I can turn them on and off without unplugging.

As a recovering engineer, you over think everything!!

I'll get some pics...

[mlh]

I had to replace mine several years ago. You would be surprised at what they look like after being drug down a grave road for 5 miles. I hope I never do that again but I wouldn’t bet on it. Oh well.
Lynwood

[432bartman]

That looks very tidy and for $38.00 bucks is hard to beat. Did you install the box where the factory one was?

[jwengermt]

Wish i would have known about this box before i replaced my pin box. Mine was a residential junction box and it had obviously had some issues in the past and somebody did a poor job of fixing it. I did replace the old box with a new water proof box that i mounted in the new pin box and i used water proof connectors. Works great but i like this set up better.