Adding a 7-Way to 2020 Ford F-550 Cab and Chassis

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Question:

I need a Trailer wiring harness for a 2020 F550 chassis. 7 blade RV style.

asked by: Lee J

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Expert Reply:

To add a 7-way to your 2020 Ford F-550 cab and chassis, assuming it does not have any trailer wiring right now, is to start by adding a 4-way, which you'll have to hardwire in, the 4-Pole Hardwire Kit with Circuit Tester # 18252.

After that, to add the 7-way connector you will need the Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat # ETBC7.

expert reply by: Kyle S

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Answer 1

There's two options for high capacities hitches for your 2022 Ford F-150 Tremor. Which one you need will depend on whether or not your truck currently has a hitch installed. I have listed both options below along with their weight capacities:…

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Answer 2

You can tap into the trailer's wiring at the rear of it to add a 4-way. We have the kit part #18252 which comes with everything you'd need so it would be what I recommend. It comes with the circuit tester plus the quick splice connectors…

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Answer 3

It sounds like you have a trailer taillight that grounds through the mounting hardware. Typically the red wire would run to the turn signal/stop light circuit and the black would run to the taillight circuit, and then the ground circuit would be…

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Answer 4

Some models have a plug-in port to easily wire in a brake controller, but there isn't a way for us to know if the specific one you're looking at has this connection available without physically searching for it in the vehicle. "Tow…

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Answer 5

It sure will! A brake Controller isn't a vehicle specific item, you can install a brake controller in just about any vehicle. To swap the controller back and forth, you'll need a #7894 pigtail and a #TK5906 Replacement mounting bracket kit.…

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Answer 6

As long as your tow vehicle can handle the additional amperage draw of supporting the additional trailer lights of your second trailer you can certainly add a 4-way to the back ofyour 2003 Forest River 5th Wheel Trailer. You would want to use a Draw…

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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

Since you are not getting the 12V power when your truck is running, you most likely don't have a fuse issue as you stated their isn't a specified fuse or relay in the owners manual. The issue is that your truck is computerized even at the…

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Answer 9

On your 2019 Ford F-550 chassis the factory brake controller plug should be located behind the dash. First locate the instrument cluster finish panel in the center of the dash on the driver's side. Carefully pry the panel out and away from the…

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Answer 10

We have options for you, though the Air Lift WirelessONE Compressor System for Air Helper Springs - Remote and Mobile App - EZ Mount #AL25980EZ is not something that can be used for tire inflation, it is only something you can use for air springs.…

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Answer 11

If you check your owner's manual you should be able to find the locations of your fuses or relays and determine the correct replacement from there. On an online owner's manual I found that the Trailer Tow Back-Up Lamps Relay (PCB1)/Trailer…

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Answer 12

Since your trailer uses a combined wiring system where the stop and turn signals run on the same circuit, in order to add a third brake light to your trailer you would need to use a 2-Wire to 3-Wire Converter, like part #118158. This will convert the…

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Adding a 7-Way to 2020 Ford F-550 Cab and Chassis

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