Electrical Adapter Available???

big_red_man · Jul 6, 2016

Dumb, I know, but I'm buying a new tractor. It has an outlet on the back with round pins. That looks similar to the "flat" outlet of my pickup, trailers, etc. Is there an adapter from the round pins to the flat? I'd like to be able to hook a trailer behind so that the lights work. Thanks, kelly

JMS/.MN · Jul 6, 2016

Just make a cheater cord, with the front matching the tractor plug, the rear matching the trailer plug. VOM will tell you which terminals are powered in various positions.

Pete in MD · Jul 6, 2016

There's all kinds of adapters available. Check with a trailer dealer, someplace like TSC, or Amazon

Bob Bancroft · Jul 6, 2016

Have you asked where you are buying the tractor? Dealers often need adaptors themselves when towing new machines with their trucks.

LarrySTN · Jul 6, 2016

NAPA carries an assortment of trailer plug adapters.

big jt · Jul 6, 2016

The plug on your tractor is the same thing semi's use, and I beleive it is wired the same also. Has been the standard on farm equipment for 30 years.

As others have stated there are adapter available or if you can't find what you want just make one yourself.

The attached link will take you from your tractor to a 4 pin flat.

jt
Untitled URL Link

JD Seller · Jul 7, 2016

The plug on the back of your tractor is the same style as a semi trailer plug. It is NOT wired the same. I just made an adaptor cord like JMS/,MN said to do. Semi male plug on one end and female trailer plug on the back end. I then wire the cord to make the lights/turn signals/etc. work on the trailer half.

John T · Jul 7, 2016

I'm not sure just which plugs or receptacles you're talking about, sorry. The big semi truck and trailer plugs and receptacles have round pins indeed. Often pickup trucks and small trailers use the light duty flat 4 (or the newer 5) receptacles and plugs, while newer pickup trucks and many RV's use the 7 blade (6 flat + round center) with round outer shell plugs and receptacles.

They make all sorts of adapters for the small flat 4 or 5 pin to the 6 pin horse trailer plugs or 7 pin RV plugs etc but fewer adapters (I have a couple) to go from semi truck to RV etc. Check with Amazon or E Bay or Adventure RV or Tractor Supply or Rural King etc.

John T

BarnyardEngineering · Jul 7, 2016

You're not going to find a tractor-to-trailer adapter at any normal trailer place like TSC, Walmert, etc.. No place like that carries the 7-pin tractor-trailer plug.

ztrmower · Jul 7, 2016

yes I have large round to small flat.whether it be wired same can not answer that

Electrical Adapter Available???

big_red_man

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JMS/.MN

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Pete in MD

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Bob Bancroft

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LarrySTN

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big jt

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JD Seller

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John T

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BarnyardEngineering

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ztrmower

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