Nice Difference Between 4 Pin And 7 Pin Trailer

A 7 pin connector is a simple device that has 3 more functions than the 4 pin version.

Difference between 4 pin and 7 pin trailer. What is the difference between 7 way rv and utility trailer connectors. This is a great replacement for the 4 way flat connector since it provides a secure connection between the receptacle lid and plug tab. There is a difference between a 7 way round and and 7 way rv blade connector.

Not only does it handle the same tasks as the 4 pin running lights left turn signal and brake lights right turn signal and brake lights and ground it comes with the ability to run the trailer s 12 volt system reverse lights and electric brake. Running lights left turn signal and brake lights right turn signal and brake lights and ground. The only difference between 7 way utility and 7 way rv is the color of the wires.

It was a 7 pin plug. Ask the experts a. The pin outs are the exact same so either would work just fine with the other.

Hopkins part hm47180 is a 4 pole to 7 way wiring adapter that is equivalent to the similar 37185 the only real functional difference between them is that on part 37185 the 4 pole trailer connector is located to the side of the 7 way rather than under it as with hm47180. A 4 way trailer connector has the basic lighting functions only. Trailer lights adapter connector 7 pin to a 4 pin connector.

If your looking at the 4 pin coiled. A 4 pin operates only running lights turn signals and break lights the 3 extra on a 7 pin are for break controller 12 volt charge for the breakaway battery associated with your breaking system. A 7 way has these functions and a 12 volt circuit a circuit for electric trailer brakes requires a brake controller in the vehicle and a reverse light or auxiliary.

Both adapters plug in at an existing 4 pole vehicle connector and re format those lighting signals to the 7 way. If you take a look at the accompanying photo which is from our linked article on trailer wiring you can see that the connector on the left has blade style pins while the one on the right has round pins. Bought a new truck and found a different trailer lights plug on the truck.