Can a European 7-Way Trailer Connector be Converted to a U.S. 4-Way

Question

Question:

Does the 7 pin round mean that it fits a 12N type European trailer plug?

asked by: Bob S

0

Expert Reply:

No. The 7-Way end in the # 47405 adapter is made for the North American style of 7-Way round pins. A European 7-Way, see picture, has separate turn signals and brake lights and a circuit for fog lamps. The tail lights are also separate.

You would need to fabricate a special adapter to get the 2 to work together. I would need to know which end has the European 7-Way, the vehicle or the trailer. It would also require a semi-permanent change to the connector on the vehicle or possibly the trailer too.

expert reply by: Michael H

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Jason M.

7/29/2020

Hi, hate to bring this up again, but I’m hoping 7 years later, that someone has created an easy solution. My wife just purchased a US specification Audi Q5, but she has a European 7 pin trailer. Little difficult to find a US trailer over here...in Germany. Reading the previous treads, sounds like it is possible to rewire the car or trailer? How difficult is it convert?

Reply

Jon G.

8/6/2020

If you were located in the US then it would be a simple manner of rewiring the trailer lights to our specs, but since you're in Germany you are going to have to get the Audi Q5 wiring done professionally to make sure that it's up to European standards. I've reached out to our different wiring manufactures about this on a few different occasions and they have said that we don't have any way in the US to get something ready aside from taking the vehicle to a shop that knows what they are doing.

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Andy K.

3/24/2013

Hello, I am having the same issue. I am in Germany with the Army. My American spec car has the flat 4 and my European motorcycle trailer has the round 7 pin. Can you describe more in detail the special adapter? And does anyone make one? What permanent changes should you have to do. Splice together the tail lights for beginners? Thanks!Andy

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Patrick B.

4/16/2013

You will need to separate the combined brake and turn circuits that are on the car. Per that diagram, you can split the brown wire on your 4-pole and it will run to positions 5 and 7. You will also need part 118158, this will split the brake signal out from the turn signals. Then you will wire all those connections to a European style 7-way.

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Answer 1

We currently carry four different size hitch balls which are 1-7/8", 50mm, 2", and 2-5/16". The most common hitch ball size in Europe is 50mm for which you can use part #63912 if you need a 3/4" diameter shank or part #EH53C-C if…

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Answer 2

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Answer 3

The only solution I could help you with would be the third option you listed. You would want a trailer side 7-way like part #H20042 to wire up to an EU socket found local to create an adapter to use your US spec vehicle with EU trailer wiring. I…

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Answer 4

I may have a solution for you to haul your TVs, but there is no way for the tongue weight of a vehicle to be increased. To start, the tongue weight refers to the amount of weight that can be added to the frame of the vehicle safely, so there…

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Answer 5

You will need a battery isolator, like Battery Isolation Solenoid, part #PK5231201, if you plan on leaving the trailer connected to the truck when the truck is off. If you unplug the 7-Way, the trailer battery cannot drain the truck battery. If you…

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Answer 6

There are a few things that could cause your battery to drain after installing a trailer wiring harness like the Curt T-Connector, #C56329. The first thing that we can test for is a bad converter box. With the fuse in place, test the 4-flat connector…

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Answer 7

Yes, the Curt trailer wiring harness part #C59236 is compatible with incandescent and LED lights.

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Answer 8

Usually a brown wire contains the running light circuit. However, you cannot go by wire color because it always varies from trailer to trailer. You will want to trace the wire back to where it leads on the trailer to determine its function and then…

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Answer 9

The easiest way to plug your vintage Dethleffs German camper trailer that has a 7-way European connector into the 4-way connector on your 2017 Dodge Grand Caravan is by replacing the connector on the trailer. You will need a trailer end 4-way flat…

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Answer 10

I am not aware of the existence of an adapter, but one could be easily constructed. You will need to find a vehicle-side socket to receive the plug from your trailer. We do not carry them, so you will need to obtain one locally. You will also need a…

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Answer 11

There are some 7-Way connectors/sockets that have blades that are a little larger than others and can cause this issue. Sometimes you can force the trailer end in but I recommend replacing the connector on your RV with a new one such as #PK11893 if…

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Answer 12

U.S. 7 pins such as Pollak #PK11700 have different functionality than European style 7 pins, as the Euro style is essentially equivalent to our 4 way. What you are going to need to do is match up the wiring from both connectors; I've added a pair…

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Can a European 7-Way Trailer Connector be Converted to a U.S. 4-Way

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