Replacement for Damaged 7-Way Trailer Connector

Question

Question:

In your previous answer you mentioned replacing entire cable will I need to do that or can I splice the cable back together? Also is there the possibility of damage to the trailer or truck electrical system when the cable was pinched between the truck and hitch?

asked by: Ed J

1

Helpful Expert Reply:

By damaged power cable, I assume you are referring to your trailer's 7-way being severed, and while there likely isn't going to be any electrical damage, you will need to replace the 7-way connector from the trailer. You didn't specify what was severed, but this is the most obvious culprit based on how they connect.

For that you would be able to splice in a new connector, depending on the length you need:

- 4 feet: 7-Way Molded Trailer Wire Connector # H20043
- 6 feet: Mighty Cord 7-Way RV-Style Trailer Connector # A10-7W6
- 8 feet: Hopkins 7-Way RV Style Connector # H20046

You will need Heat Shrink Butt Connectors # DW05745-5 (12-10 gauge) and # DW05744-5 (16-14 gauge) as well. I've added links to video reviews for you to take a look at.

expert reply by: Kyle S

1

Ed J.

12/19/2019

In your previous answer you mentioned replacing entire cable will I need to do that or can I splice the cable back together? Also is there the possibility of damage to the trailer or truck electrical system when the cable was pinched between the truck and hitch?

Kyle S.

12/19/2019

I don't see any reason for concern in regards to electrical damage. As for splicing it back together, you can do that so long as you have the appropriate length of wire remaining for your connector and the damaged sections are removed. I wasn't sure in your initial question exactly where the connector was severed or if yours was damaged, which is why a new connector was recommended. If your situation is such that you can simply splice the wiring back together and there is no other damage, that's certainly an option.

Answer 1

The AX (Auxiliary) location on the Hopkins 48505 connector that you reference, which is the same one used on the Hopkins #H20046, is typically used for 12V power. If you take a circuit tester like part #PTW2979 or #C73NR you should see that the…

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Answer 2

Yes, it does! You'll want the 8' long Mighty Cord 7-Way RV Style Trailer Connector w/ Molded Cable item #A10-7W8. To keep all of your connections in a secure organized place, I recommend the Trailer Wiring Junction Box item #3375601100.

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Answer 3

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Answer 4

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 5

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 6

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 7

Hey Bryan, that's a good question. The pricing can definitely be misleading, but I wouldn't use it to judge the quality of the tire. A lot of that comes down to promotions, inventory, and whether you're looking at a tire by itself or…

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Answer 8

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

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Answer 9

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

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Answer 10

Hi Paul, you’re definitely on the right track here, and I can help you narrow this down with confidence. With your tandem 3,500 lb Dexter axles and 33 inch spacing, both the Dexter EZ Flex part #K71-652-00 and the Lippert Road Armor part #LC53CK are…

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Answer 11

Hey Andrew! Yes, Furrion does have a Chill Cube model with a heat pump. This was actually just released for aftermarket sale. You will need a complete system to make the switch, new R32 units aren't backwards compatible with old R410A systems.…

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Answer 12

The 5.30-12 tires, being wider, are going to make more contact with the road. This means that the noise, and heat build up will be higher than a 4.80-12 tire but the rolling resistance will actually be less because the tire is larger diameter. The…

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Replacement for Damaged 7-Way Trailer Connector

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