How to Connect Lance Trailer 7-Way Wiring to Truck with 7-Pole Socket

Question

Question:

I need a wiring harness from my Lance 820 with original 7 pole plug to the bed of my truck with a Pollak SAEJ 560 7 pole connection. What products do I need for that connection?

asked by: Ton V

1

Helpful Expert Reply:

Lance sometimes uses their own special connector (for whatever reason) so since your truck has a Pollak 7-pole like part # PK11720, I recommend cutting off the OEM Lance connector and installing a more common 7-pole like the Pollak # PK11700 that will match what's on your truck.

expert reply by: Jon G

1

Answer 1

Since trailer wires colors are not always consistent among manufacturers the best way to figure the functions of each circuit is to test each circuit individually. There are two ways you can do this, the easier way is to get a car battery and run a…

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Answer 2

I would be happy to help you set up your 2022 Toyota Highlander to haul your new travel trailer. The wiring harness you currently have controls your trailer's lighting functions only. You do not need to rewire your Toyota you just need another…

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Answer 3

The Adapter 6-Pole to 7-Pole Trailer Wiring Adapter #47435 will plug into a 6 round connector on your truck and then convert it to the larger more common 7-pole connector. While the connector is round the terminals inside are mostly blade connectors.…

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Answer 4

The 7-Way blade style trailer connector is the most common 7-Way in use at this time. It would be beneficial to switch to this style. However, if you already have a 7-Way round connector you can just use an adapter to go to a 7-Way blade style when…

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Answer 5

A 7-pin connector on a Mack Tractor like you described would function a bit differently than a 7-way blade-style RV connector. The difference is the right and left turn pins on the 7-way blade also carry the signal for the brake lamps while on the…

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Answer 6

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 7

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 8

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 9

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 10

Lance does have a proprietary plug, but many customers see a standard 6-way or 7-way round and notice it doesn't fit their factory 7-way as well. I've attached an article to help if you have one of the 7-way or 6-way round connectors which we…

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Answer 11

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

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Answer 12

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…

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