Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires

Part Number: ETBC7

3567 Reviews | 8076 Questions

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etrailer accessories and parts trailer brake controller installation kits

etrailer accessories and parts trailer brake controller installation kits universal kit for - 7-way rv 4-way flat 10 gauge wires

etrailer accessories and parts trailer brake controller etbc7

etrailer accessories and parts trailer brake controller universal installation kit for - 7-way rv 4-way flat 10 gauge wires

etrailer accessories and parts installation kits etbc7

etrailer accessories and parts trailer brake controller

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Setting up the Universal Installation Kit for Trailer Brake Controller on a 2018 Jeep Cherokee

Feature Breakdown: Universal Installation Kit for Trailer Brake Controller

In-Depth Review of the Universal Installation Kit for Trailer Brake Controller

etrailer Behind the Scenes with the Universal Installation Kit for Trailer Brake Controllers

Towing or Hauling with your Minivan

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If your vehicle already has a 4-way flat, this kit includes everything you need to install an electric trailer brake controller and 7-way connector. If there's not an existing 4-way flat on your vehicle, you can purchase one separately. 1-800-940-8924 to order etrailer accessories and parts part number ETBC7 or order online at etrailer.com. Free expert support on all etrailer products. Great prices and Fastest Shipping for Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires. Accessories and Parts reviews from real customers.

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etrailer Accessories and Parts - ETBC7

Features:

Kit includes wiring and accessories required for installation of a trailer brake controller (sold separately) in your vehicle
- Designed for use on a vehicle with an existing 4-way flat trailer connector
25' Long, 10-gauge duplex wire is wrapped in an abrasion-resistant cover
- Connect one wire to the blue wire on the brake controller
- Connect one wire to the positive post on the vehicle's battery via the included 40-amp circuit breaker
Pre-wired 7- and 4-way trailer connector mounts easily at rear of vehicle with included bracket
- Plugs into existing 4-way trailer connector on vehicle
Heavy-duty circuit breakers - (1) 20 amp, (1) 30 amp, and (1) 40 amp
Circuit tester helps you find the stoplight switch wire above the brake pedal
Also includes hardware for installation:
- Ring terminals for battery and breaker hookup
- Quick-splice wiring connectors
- Self-tapping screws
- Zip-ties
- Wire loom for a professionally installed appearance

Note:

No existing 4-pole connector: If your vehicle does not already have a 4-pole flat trailer connector installed, the etrailer application guide can be used to find the easy-to-install connector made specifically for your vehicle.
Extra-long vehicles: If you drive a crew cab, extended cab with long bed, cargo van, minivan, or extended-length SUV, 10' of extra wire (10-2-1, sold separately) will make installation much easier.

7-Way and 4-Way Trailer Connector

Wiring Diagram for Trailer Brake Controller Installation

Wiring diagram of brake controller installation

ETBC7 Universal Installation Kit for Electric Trailer Brake Control - 7-Way Blade and 4-Pole Flat - 10 Gauge Wires

Installation Details ETBC7 Installation instructions

Customer Satisfaction Score:

92% were satisfied with this product

8% of customers were not satisfied

Product did not meet expectations
Wrong item was ordered
Did not arrive in time

8% of customers were not satisfied

Product did not meet expectations
Wrong item was ordered
Did not arrive in time

4.7

3567 reviews

5 Stars		(2951)
4 Stars		(401)
3 Stars		(105)
2 Stars		(45)
1 Star		(65)

by: TJ 02/24/2026

Heavy gauge wire is really nice. Had all the parts required. However, I can't understand why something this pricey did NOT have a stainless bracket and stainless hardware. Shrink fit connectors should have also been included. It's like this kit was made for indoor use. Picture is after 3 weeks of being installed.

Click to Enlarge

by: Kevin 10/13/2025

I had purchased wireless taillights for a small trailer solely for the reverse lights built into the taillights. The transmitter for the lights was integrated into the 7 prong trailer plug that worked perfectly with our SUV. However, I wanted a solution to adapt the 7 prong plug to the existing flat 4 pin receptacle on my 2002 Tacoma. This kit was the perfect solution. All I had to do to enable the backup lights was to tap into the backup lights electrical line on the Tacoma and just plug the flat 4 pin plug ino the existing receptacle. Works great. Took less than an hour to install everything.

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by: Adrian 08/07/2025 One Year Later

Installed a REDARC Tow-Pro Elite brake controller using this kit about a year ago, and it has performed flawlessly. Kit includes everything you need, and almost everything is high quality. My only complaint is with the 4 screws that are used to mount the 7-way connector to the bracket - these started to rust within a week or two of installation. Considering the connector is pretty much the only part of the kit that is visible, these should be stainless steel. Of course I can stop by the hardware store and grab some, however I would have gladly paid a few extra dollars for the kit to just come with them. Other than that, highly recommend.

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by: David 09/15/2026

7 pin trailer connectors naturally wear from use and over time need replacement. This set has to be replaced with a e trailer part because unlike most other trailer plugs ,it doesn't have a plug in connector.

by: Brad B. 04/17/2025

Overall the kit is great but for the price I think there should be a few improvements.
1. The four mounting screws for the receptacle should be stainless steel. I had to replace the black ones because they started rusting 2 weeks after installation.
2. The included circuit breakers should come with rubber boots to make them more water resistant.
3. The spring for the receptacle cover should also be stainless steel. It hasn't started rusting yet but I would rather have stainless.

The instructions were good and the installation went well.

Brad B. One Year Later

4/18/2026

The product is still functioning like new. Just make sure to keep some dielectric grease on the contacts to prevent corrosion.

by: Gary M. 07/03/2026

Easy and pretty good product to wire up and use. But I did decide to not use the original circuit breakers in this kit. Instead I ended up using a 6 Terminal ATC/ATO Style Circuit Board along with Universal (break to length) Type-1 ATC Style Circuit Breakers. The only other thing that I think that should be included in this kit is at least a 25' roll of Blue 10ga Wire to complete the wiring from the Trailer Brake Controller to the 7-Way Vehicle Connector. The included double 10ga power wire was more than enough to wire up both the Trailer Brake Controller as well as the Power and Ground Terminals on the 7-Way Vehicle Connector.

by: Art 07/20/2026

Lots of quality issues with the kit I received. Missing the mounting bracket/hardware, circuit tester, 40a circuit breaker broke off the mount while tightening down the connections on the terminals(used 1/4” ratchet). Had to call 3 times to get the correct bracket. Seems like I got a bag that was a return that didn’t have all the parts included. Customer service was helpful, but took 3 calls to fix the issue. Asked for overnight shipping due to needing the parts sooner for a trip, but got standard.

Aside from the issues mentioned above, quality was good.

by: Michael 06/07/2025 One Year Later

Overall it’s a good product but minus one star because the screws that hold the plug to the bracket have rusted heavily in just a few months. I don’t drive in a corrosive environment; no salted roads, not near the ocean.

Michael One Year Later

6/8/2026

Still a good product, same rating. I replaced the rusted screws that came with this with stainless steel hardware. Had to slightly drill out the holes in the mount to accommodate the new hardware. Now it all looks good and works fine.

by: Daniel 08/13/2026

The four way had a short in it. I was getting both tails flashing when I turned on a turn signal. Had to cut it off and just join to the old 4 I had which was working fine. Then and only then did my 7 work. The four way short was in the rubber molding. It took me many hours to problem solve it to a brand new harness. Did. It expect that.

by: Keith 05/22/2025 One Year Later

I bought this for my volvo xc90. It was a great kit. I am not an electrical guy, but it was very easy to wire with the included instructions.
Works perfect. Awesome stuff from these guys.

Keith M. One Year Later

5/23/2026

So far so good. It works perfect for my motorcycle trailer, my flat trailer and for my travel trailer. No issues. Works great.

by: Cabra1 05/19/2026

This is a great kit with quality parts. I recommend it it your vehicles has no OEM front to rear brake control and power wire for the 7 pin system. The rear lighting signals need to be connected to this kit via a four pin adapter or direct wiring connection at the rear of your vehicle. I recommend this kit.

by: David 08/18/2026

A good product, well packaged, with all the options and instructions for a successful installation. The use of thermal breakers rather than fuses should aid in troubleshooting and longevity!

by: Chris 04/20/2025

Fine product. Not a big fan of self tapping screws. Pre drilling can't even help those things.

Chris One Year Later

5/11/2026

Everything mounted and fit fine. Works like its suppose to.

by: Ray 05/27/2026

Duplex cable was cut with a razor or something down to copper wire at about 20 feet of its length it did not affect on my install but would not of been happy if it was at 16 feet.the only other thing I can think of is maybe use butt terminals with heat shrink to seal out the elements in the northeast . Very happy with the kit and everything that came with it, I would purchase again and like your videos on YouTube thank you

by: Larry 07/30/2026

Could use more tie wraps included in kit. Also had 2 different instructions on to wire in the brake wiring for my vehicle. Confusing.

by: H.A. 08/01/2026

If it works as easily as it was to install, I will be SUPER HAPPY! I am a BIG 0 when it comes to electronics!! I was able to install the system by myself. I have not had an opportunity to test it yet, but somehow, I feel that it will work Great. I did call and talk with Carter a couple times; he answered my questions and was very knowledgeable and eager to help!!

by: Bryan 07/27/2026

Install took a while but overall a 2 out of five beard job. Buy a heat gun and nice crimper and shrink all connections

by: Chris 04/12/2026

I never installed wires for break controller before. I am semi handy. I watched some YouTube videos long story short they all made it seem harder than it is. E trailer had video of my vehicle bl bla bla. Everything worked out great. Is pretty easy to do. Would/will do it again. Also almost forgot to say E trailer is awesome company, I wish I could give some kind of constructive criticism but I can't. My favorite place

by: David 05/15/2026

I installed this to have the 7 way connector running the 4 way flat light inputs. It runs good with the inputs from the 4 way on a 7 way connector. When I plan to tow RV in the future I will have the option to run the auxiliary battery charger wires and brake controller.

by: Ray J. 04/22/2012

This kit helped out a lot. I would have given it 5 stars, but had to make several mods in order for it to work! First mod was to the 4 way plug, it did not fit my factor 4way plug. So u will either have to splice the wires or cut the rubber seal from around the prongs to plug it in. Next the mounting bracket will not work on the 05/06 Navigator. You will have to cut the top mounting part off,so that it is just a flat square. The next thing is there is not enough zip ties, you will need at least 10 more. I did not use the fuses either, went with a inline standard fuse holder (30amp). When all is said and done. The wire and connectors really came in handy and the product is install. Hope the picture below will help others out because, I couldn't find any info on where to mount the 7-way. But found a creative location that still has somewhat of a factory look!

Click to Enlarge

Glenn

7/10/2015

Have you had any troubles using the inline fuse vice the circuit breaker they reccomend?

Ray J.

7/17/2015

None at all

by: Teresa 12/23/2020

I have a 2018 BMW X2 that did not come with a factory tow package. I had an etrailer hitch and 4 way plug installed last year and has been perfect since. I just recently purchased a camper and needed to have a Brake controller & Brake controller 7 way deluxe kit installed. My mechanic installed them with the detailed instructions that the units came with without any issues. The Tekonsha P3 is extremely user friendly and is working flawlessly. A bit overkill for my car being I can only tow max 3500 pounds, and my camper is 1 axel. this unit is rated up to 3 axles. I look at it like this way, when I trade in my BMW I will take my P3 with me. etrailer is amazing with the support & products they provide and I highly recommend them to anyone who asks me.

Click to Enlarge

Teresa One Year Later

12/24/2021

My Meghan said this was very easy to install, works great no complaints whatsoever.

by: Steve C. 05/20/2019

Overall, this is a good kit, and is much better than having to do it from scratch. I mounted this on a 2016 Chevy Express 2500 with a DrawTite class V hitch. This kit did not come with an L-bracket to mount the receptacle to a hitch like they show in the video. But, you can get one from etrailer. I fabricated my own L-bracket and mounted it upside down so it would be protected from road debris by the hitch itself. It made the receptacle fit perfectly against the bottom of the bumper. (see pic) You will also need a couple extra blue butt connectors for this particular vehicle that are not included in the kit. It would also be nice if the kit came with a few more feet of wire covering to use under the hood. I would recommend following the video carefully when installing the Tekonsha Prodigy 2 controller. It's a great video.

Click to Enlarge

Steve C. One Year Later

5/21/2020

Product still works great.

by: matt 02/24/2014

product was excellent and COMPLETE. everything you need with very DETAILED directions. i also ordered the prodigy P2 to complete my install. both were excellent and very recommended. only modification was on the actual plastic cover on bumper, i cut away minimal pieces with razor knife for perfect fit. you can look at all the pics to check out install. I took advantage of the reverse light wire and put LED light bar on back of trailer.

i made one email to e trailer for exact numbers for my make and model. the response was pretty impressive. Full detail with pictures and product numbers all set up so all i had to do was press order and pay for it. This is how american companies are supposed to be ran......I LOVE IT!!!!

Click to Enlarge

Matt One Year Later

3/5/2015

Your products are awesome. Ive had zero issues with it and 5 of my friends purchased and installed the same set up in there trucks. Thanks again for the great products and excellent support.

by: Nic 08/02/2026 One Year Later

Works great and has everything you need to go from a 4 pin to 7pin.

by: James S 06/25/2026

Unfortunately the wiring was wrong on the 4 pin that connects to the vehicle. The green and yellow wires were reversed (yellow on outside instead of green) so turn signals are backwards.

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