Recommended Trailer WIring for 4-Way Flat, 5-Way Flat, 6-Way Round, and 7-Way

Question

Question:

Need wire harness for trailer

asked by: Gerry T

0

Expert Reply:

For a Trailer Wire Harness I recommend the following options:

For a 4-way Trailer Harness use # A35W42B. This is a wishbone harness so it has wiring to each side of the trailer separately. Likewise for a 5-way wiring harness use # A40W5B.

For a 6-way, I recommend using a junction box like # 38656 with Connector and Lead Wire # H20036
For a 7-way, I recommend # HS381-9000. The remaining wires will use # 12-2-1 or # 12-1-1 sold by the foot.

I've attached an article to assist.

expert reply by: Jason S

0

Answer 1

Yes, the Curt Replacement OEM USCAR Trailer Connector part #C42JR will fit inside the rear bumper on a 2020 Toyota Tacoma. That said, in order to complete the rest of your wiring you'll need the Tekonsha OEM Replacement Vehicle Wiring Harness…

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Answer 2

It sounds like your 2014 Toyota Tacoma did not come with a factory tow package. What can happen sometimes is that on models that did not come with the factory tow package not all of the wiring or contacts will be present. You would either need to by…

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Answer 3

If you are going to change connectors the EZ Connector Magnetic 7-Way Trailer Connector #319-S7-10 would be the route I recommend going. Unlike your 7-way blade and 7-way round connectors this connector does not have any form of tension connector…

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Answer 4

Yes, the Curt Trailer Hitch Receiver #C13416, Curt T-Connector Vehicle Wiring Harness #C56434, and Curt Trailer Connector Adapter #C57672 are what you need to tow with your 2022 Toyota RAV4 Hybrid. I do recommend the Universal Installation Kit for…

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Answer 5

For a 4-pole trailer wiring harness, I'd recommend the Curt #C56349 which would plug inline between the vehicle's taillight wiring harnesses and the taillight assemblies. You can also use a mounting bracket which would consist of both part…

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Answer 6

The Curt harness part #C56175 that you referenced has been confirmed as a fit for your 2016 Toyota Tacoma. It is a universal fit harness that will require some hardwiring but it will fit your vehicle.

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Answer 7

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 8

Is the connector round with 6 pins on the outside and a center pin? If so you would just need the 7-way part #PK11893. Let me know if you need something different.

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Answer 9

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 10

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 11

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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Answer 12

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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