Wiring Diagram for 7-Way Round Pin Trailer and Vehicle Side Connectors

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Question:

wiring pollak j560jun93 to 7pin round narva truck to trailer thank.

asked by: Michael

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Expert Reply:

I have added a photo detailing the wiring connections for the Pollack Heavy-Duty, 7-Pole, Round Pin conncetor, # PK11700, see link. This is a SAE J560 compliant connector. The wiring diagram for the vehicle side connector, # PK11720, is pictured also.

expert reply by: Robert G

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Answer 1

The wiring color codes and wire gauge recommendations for the Pollak Heavy-Duty, 7-Pole, Round Pin, Trailer Wiring Connector, item #PK11700, are listed below. White - Ground Return - 8 gauge Black - Clearance, Side Marker, Identification - 12 gauge…

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Answer 2

Hey Del, thanks for reaching out! The GAIN setting on the Curt TriFlex NEXT Trailer Brake Controller #C24VV has to do with the max "strength" of the brakes, while the LOAD setting is how aggressive the brakes get to that GAIN setting. So,…

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Answer 3

I contacted the manufacturer with what has been going on when using your Demco SBS Stay-IN-Play DUO Supplemental Braking System #SM99251. They were able to provide some insight. First, you need to be using a 20 amp fuse. They said that the…

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Answer 4

On a 7 pin round which is the common connection on a semi trailer, the clearance/marker lights are at the 10 o clock position when you look at the trailer wiring connection. When looking at the connector on the back of the truck, that will put the…

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Answer 5

Since your 2011 Ford E-350 does not have the factory towing package you will need to start with adding a 4-way connector. I recommend the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector #C56020 which will plug into your…

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Answer 6

Hi Chip; you might be able to get by with that, but I don't think it is worth risking issues with your suspension. As far as equalizers go it is quite a bit longer than your old one. Standard equalizers are pretty inexpensive, and a problem would…

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Answer 7

There is a difference between a 7-way round and and 7-way rv blade connector. 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…

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Answer 8

There are brighter lights available for your current Bargman 92 Series lights, but none that have a reverse light function. So to replace your current lights with brighter LEDs you will need the LED Trailer Tail Light - Driver's Side…

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Answer 9

The Tekonsha Prodigy P3 Brake Controller, #90195, does not have an on and off switch. It will go into sleep mode after several minutes of no activity. The power draw when it is in the sleep mode is so negligible that it will not discharge the…

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Answer 10

In order to pick out the correct bearing buddy you will need know the pilot hole of your hub. To do this, remove the wheel and tire and remove the grease cap from the center of the hub. Usually it is a metal cap that is just lightly hammered into…

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Answer 11

In order to determine the correct hub and drum replacement you will need to know what bearings your trailer is using. Bearing Buddy Bearing Protectors like the #BB1980A-SS that fit a 1.98" hub bore are commonly found on 2,000-3,500 lb axles, so…

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Answer 12

The easiest way to go from a 7-way round connector to a 7-way flat would be to get a Trailer Connector Adapter part #HM47425. However, if you are looking for a more permanent solution you would need to remove your 7-way round connector and wire up…

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Wiring Diagram for 7-Way Round Pin Trailer and Vehicle Side Connectors

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