Recommended Brake Controller and 4/7-Way Trailer Wiring Harness for a 2012 Ford E-350

Question

Question:

Hello - I would like to install a brake controller for my rv. Do the E-350s have a plug and play system or do I need to install a whole get-up as if I was installing into a SUV? The vehicle dolly Im towing has electric breaks. Also, I would like to replace the harness connector in the back to a new 7 and 4 pin connector - what do I need for that? Lastly, I am towing a vehicle dolly and plan on putting magnetic lights of vehicle being towed - the lights are 4 pin and the trailer is 7 pin, can I connect those at same time? This is why Im asking for a new 7 and 4 pin connector.

asked by: Andrew

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Expert Reply:

Yes, there is a brake controller port on most 2012 Ford E-350's. If you take a look under the driver dash up by the emergency brake pedal you should see a four pin plug which is used for this purpose. I recommend the Tekonsha Primus IQ Trailer Brake Controller part # TK90160 with the Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers part # 3034-P. The Tekonsha Primus IQ is a great all around brake controller that has most of the same features as other top tier options like boost settings, safeguards, etc. but without all the extra bells and whistles you pay for. The Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers then makes for a plug and play install. I have attached a video to assist with finding the plug.

In order to add a 4 and 7-way wiring harness we need to first determine if you have the Class I Tow Package with a 16-pin plug under the rear bumper or the Class II Tow Package which has both 16-pin and 4-pin plugs under the rear bumper. If you have the Class I Tow Package then you need the Adapter 4-Pole to 7-Pole and 4-Pole part # 37185 but if you have the Class II Tow Package then you need the T-One Vehicle Wiring Harness part # 118261 and the Hopkins Endurance Multi-Tow 7-Way RV part # HM40950 The rest of the wires for the Adapter 4-Pole to 7-Pole and 4-Pole should be already ran to the rear bumper somewhere in this area.

The 4 and 7-way trailer connection points can both be used at the same time on the above harnesses.

expert reply by: Conner L

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Answer 1

We have what you would need, but there's no way to run a brake controller through a 4-way and you wouldn't be able to use the #118261. Instead all you would need is the part #ETBC7. This comes with everything needed to convert the…

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Answer 2

The connectors that the #118261 is designed to fit should look like the picture that I attached. It is possible that you haven't found the correct harnesses on your 2009 Ford E-350 Van. The correct harness will be under the rear of the van…

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Answer 3

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 4

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 5

If you have a vehicle specific wiring harness for a brake controller then that would indicate that you have a factory tow package and subsequently would already have a 7-way at the back of your vehicle. The universal 7-way connector #ETBC7 is meant…

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Answer 6

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 7

For your 2024 Hyunda Santa Cruz we have the Curt 7-way kit part #C68JR that is a confirmed fit. This installs by plugging into a factory wiring connector on your vehicle which means a really easy install that doesn't require any splicing.

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Answer 8

The first thing you will need for your 1999 D250 is a 4-way. The Curt T-Connector Vehicle Wiring Harness #C55317 plugs into the connection points behind your rear bumper and will allow you to power your trailer's signal lights. Once the 4-way is…

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Answer 9

I do have a solution for your 2024 Kia Telluride that has the LED taillights that does allow it to have both a 4-way and 7-way plus install a brake controller but it is not with the #TK74CR which does not work for you based on the LED taillights.…

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Answer 10

Sure thing, I will go ahead and list out what you need for your 2023 Kia Sportage to add a 7-way for a brake controller so you can tow with the Curt Trailer Hitch Receiver #C94WR: - T-Connector Vehicle Wiring Harness with 4-Way Flat Trailer Connector…

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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

If you're wanting to add a 4-way to power your trailer's signal lights then you need the Curt #CU94FR. If you want to add a 7-way to your 2024 Santa Cruz then you can use the Curt #C68JR. Both of these plug into the tow package you referenced…

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