Kubota trailer light connector

[rbaevergreen]

I had to buy a trailer light kit for one of my trailers - it came with the vehicle side adapter, which I don't really need. I've always been curious if this can be wired to my Kubota BX1850 without a converter or relay box, mostly because why not. Two of my trailers have LED lights, one does not. It looks like I could just splice the running light wire into the reds, and then the turn/stop lights into the ambers. On a vehicle there's a conversion of sorts. Not looking to take on the road though.

 

[Fallon]

Tractors rarely have trailer connectors on them. A decent handful do, but it's not common. Brake controllers are much rarer. So even if there is a connector for the lights it won't help for brakes.

What's the point for hooking up your trailer? Do you need power for something? I don't see the point for brake lights unless it goes on the road. Work lights could be handy in many use cases though.

Brakes won't work unless you wire in a brake controller. As most tractors dont have brake lights you have to add in switches that are normally part of a car/truck already has. Even then brake controllers aren't optimized for tractor speeds. You could always not wire in the brake light switch for the controller & only manually activate the controller when needed.

 

[oosik]

My M6040 came with a standard 7-pin trailer connector. Never had to use it. None of my trailers are ever used on the public highways.

 

[Farmer495]

I had to buy a trailer light kit for one of my trailers - it came with the vehicle side adapter, which I don't really need. I've always been curious if this can be wired to my Kubota BX1850 without a converter or relay box, mostly because why not. Two of my trailers have LED lights, one does not. It looks like I could just splice the running light wire into the reds, and then the turn/stop lights into the ambers. On a vehicle there's a conversion of sorts. Not looking to take on the road though.

Look in your manual, there may be reference to a trailer wire pigtail. Keep in mind tractors use the 7 way round found on 18 wheelers etc, not the 4 way flat or 7 way RV found on passenger vehicles and pickups.

The M series usually had a 7 pin round on them, my 7040SU had the factory wire harness connector for the factory trailer light kit tucked near the left rear fender. I had dealer install the light plug kit prior to delivery new. I have things with lights and am on the road lots.

Wouldn't worry on brake controller, I do tow an electric brake equipped trailer once in a while when the mud is too deep for the 4x4 truck, have a 7way RV to 7 way round convertor for it.

 

[Dave M7040]

My M6040 came with a standard 7-pin trailer connector. Never had to use it. None of my trailers are ever used on the public highways.

Went through this a few years ago so you may find my comments out of date.

Kubota M7040 wiring diagrams show a brake light switch.

The factory 7 pin connector would make you think there is a circuit on all 7 pins.

In North America tractors are not required to have brake lights instead relying on a Slow Moving vehicle sign.

Kubota omits the brake light switch and wiring on NA tractors.

Dave M7040

 

[LouNY]

Most of the tractors that I'm familiar with that had a trailer connector had the round 7 pin wired the same as trucks about half have a brake light switch wired in.
My smaller Branson8050 has a European style 7 round connector which does include a brake light wire and switch,
of course it is wired completely different then a North American 7 pin.

 

[Thunder chicken]

I have an M7060 so likely different the the B... however, like the others, it has a 7pin round. I removed it and put on a 7pin rv style so I could use my dump trailer on the road. As everyone else had mentioned, no brake light. I also removed the 12v power that would provide the messily few amps to the trailer battery, as its in the same circuit as the tractor headlights. When i'd dump the trailer, it would blow the tractors fuse.
This winter i may look to add a switch on the brake pedal to activate a brake light and a trailer brake controller. It's really not needed but every now and then the full cord of wood going down a slippery hill would be nice to have control over!!

 

[Aquabird]

Look in your manual, there may be reference to a trailer wire pigtail. Keep in mind tractors use the 7 way round found on 18 wheelers etc, not the 4 way flat or 7 way RV found on passenger vehicles and pickups.

The M series usually had a 7 pin round on them, my 7040SU had the factory wire harness connector for the factory trailer light kit tucked near the left rear fender. I had dealer install the light plug kit prior to delivery new. I have things with lights and am on the road lots.

Wouldn't worry on brake controller, I do tow an electric brake equipped trailer once in a while when the mud is too deep for the 4x4 truck, have a 7way RV to 7 way round convertor for it.

What did the dealer charge to add that connector?

 

[Thunder chicken]

the 7pin round that was on my M seemed to be different than the '18 wheeler' style 7pin round. i bought an adapter from napa but it wouldn't work. if i remember right one of the pins was larger than the rest on one of the styles but not the other, or it was in a different spot. Like mentioned above, the connector was under the seat area to add the pig tail for the trailer harness. You wouldn't need to have the kubota part if you didn't mind cutting the connector off.

 

[John_Mc]

I'd love to have a brake controller on my tractor. My forwarding trailer has electric brakes. They work great behind my truck. It would be great to have trailer brakes when towing it behind the tractor, since I get pushed around on occasions coming down some of my hills. Since my tractor has no brake switch (and most of the time I use the hydrostatic transmission to control speed anyway), I'd just operate the trailer brakes manually.

The previous owner just had an old truck controller he hooked up to 12V from his tractor and operated manually. He had the wiring on quick disconnects, so he could remove it when not in use. I'd like to leave mine on the tractor full time, but no one makes one that is weather proof. I have not been able to find one. All are designed to mount inside the cabin of a weather-tight vehicle. I did find a controller where the settings and manual control are on a single, remotely-mounted knob. I still have two problems: where to mount the box, and how to weather-proof that knob, since it needs to be out somewhere I can reach it. Replacing the know with a weatherproof switch or dial is not really an option, since it's a custom, multifunction knob.

This one has me stumped. I may give up the smooth operation of a factory made brake controller and just try to rig my own control with a potentiometer and a push button (hopefully I can find weatherproof versions of those.