Adapter for 5 Pole Trailer Connector on Trailer to 7-Way on Tow Vehicle

Question

Question:

Wiring from trailer cord is 5 how to connect to 7pin wire

asked by: Erick M

0

Expert Reply:

If the trailer uses a 5 pole trailer connector, you'll need a 5 pole to 7-way adapter like # A75TB. I'm assuming that the trailer is a boat trailer that's equipped with a hydraulic or surge coupler with an electric lockout solenoid to release the brakes when the trailer's being backed up. If this is the case, you'll want to make sure that the center pin of the 7-way connector on the tow vehicle is connected to the reverse lamp circuit so it activates when the tow vehicle is shifted into reverse.

expert reply by: Mike L

0

Answer 1

The best solution for your situation would be to use a circuit tester, like part #PTW2993, to wire your trailer wires to a seven-way trailer connector, like part #A7WCB. Wiring by function is the best way to make sure you have the trailer connector…

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Answer 2

We offer a trailer-side 7-way blade connector that can be attached to the 5 wires on your trailer, part #A7WCB from Optronics. The linked video illustrates how this part installs. Since your trailer has only 5 wires some of these pins will not be…

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Answer 3

I would start by checking the ground wire on the vehicle to make sure that it is firmly connected to a dirt and debris free spot on the vehicle's frame. Without knowing which harness you've got connected or what the tow vehicle is that would…

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Answer 4

If all you want is to prevent the 12 volt power supply of your trailer battery wiring from backfeeding onto your vehicle wiring or vice versa what you need is a one-way diode like part #RM-690. This only allows current to flow in one direction so…

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Answer 5

Did you have a 4-pin connector that had 5 wires or was it a 5-pin connector? There is a big difference since you normally see a 5-pin connector on a boat trailer with the 5th pin used for an electric reverse lockout solenoid on a brake actuating…

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Answer 6

I did some checking and the hub/drum we offer that will work for you is the part #8-430-5UC3. This uses the same bearings as the 8-415 and will be an exact fit aside from the fact this is a non-ABS setup and the 8-415 came in an ABS setup and non-ABS…

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Answer 7

I've never heard of an actual third brake light connector on a camper shell to plug in on a truck and we don't carry any parts to do that. The light generally needs to be hardwired into the truck's brake light circuit. The issue with this…

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Answer 8

If you are needing the hub and drum assembly then you will want to go with the Dexter Trailer Hub and Drum Assembly #8-201-5UC3-EZ but if you are just looking for an idler hub then you will want part #8-213-5UC1 instead. These come with the correct…

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Answer 9

If the trailer wheels scrubbed (dragged and scrapped the ground instead of rolling) when jack knifed then it could have thrown something out of alignment or damaged something. First, inspect the suspension. Look for any elongated holes where…

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Answer 10

The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…

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Answer 11

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 12

Since you have a wheelbase/axle spacing of 38 inches the correct hanger kit for slipper springs would be the part #HAP-105-205-01. And then for a 7k trailer axle the u-bolt kit you'd want would be the part #APUBR-8. I attached the diagram to use…

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Adapter for 5 Pole Trailer Connector on Trailer to 7-Way on Tow Vehicle

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