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Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.
Features:
Specs:
Installation
This custom-fit T-connector plugs into your vehicle's wiring harness, which is located in your rear cargo area. You will have to remove the floor coverings, storage trays, rear scuff panel, and side trim panel to access this harness. Once you've plugged in the T-connector, run the hot lead up to your car battery. Connect the lead to the included fuse holder, and then connect the fuse holder to the positive terminal on your battery.
Once installation is complete, the 4-way connector will be stowed in an out-of-the-way location within your rear cargo area.
It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.
A tail light converter is built into this T-connector. This converter is a circuit-protected, battery-powered unit that bypasses the electrical routes that are used by a basic wiring harness. As a result, there is virtually no draw on your tail light circuits.
Because most trailers run on a two-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's three-wire system need to be combined so they are compatible with the wiring system of the trailer. This converter combines the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your vehicle operate.
Curt builds each tail light converter using surface-mount technology (SMT). This method of construction involves soldering electronic components directly to the surface of a printed circuit board. SMT eliminates the need for leads, which are used in older through-hole technology. The result is a circuit board that is smaller yet provides more routing area and that offers superior performance, reliability and durability.
Circuit boards constructed using SMT have been shown to perform better under rough conditions with excessive vibration than those made using the through-hole method. And where would vibration be more likely to occur than in towing applications? Curt converters also produce less heat, leading to increased durability and longer life. In addition, lower levels of resistance ensure better performance, especially for parts that operate at higher frequencies.
Each Curt circuit board is made using high-quality components that are pieced together in the most technologically savvy fashion, leading to greater predictability and reliability in functioning.
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Average Customer Rating: 4.8 out of 5 stars (102 Customer Reviews)
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.Well, I received the product in a timely manner, the install videos were very helpful and spot-on with how I needed to go about it, and the install went smoothly. Not simple by any means, but not too bad. However, after using this with my trailer 3 times, the running lights connection failed. (That's the brown wire, TM or "trailer marker" from what I can tell.) That's a big pain. I called Curt, and their service wasn't great. Seems to be blaming the trailer itself, and didn't really want to help. I got in touch with etrailer, and they were great. Helped me diagnose the problem, narrowed it down to a failure of this product, and got me set up with an advanced replacement under warranty, so I could pull out the bad one and put in the good one at the same time. So that's fine, but I'm only giving 3 stars, because the product failed me, and it cost me $XX to ship back the bad one, and about 2.5 hours of my time to swap it out. I think if the product works for you the first time, it's a 4 or 5 star product, but ymmv.
The wiring harness arrived when they said it would. The instructions and video clips from e trailer were very helpful. Installation was easier than I thought. Everything I needed was in the kit. Thanks
Need to include a Flat Connector cove in the Kit
Basically a plug and play wire system (very simple)
Product was easy to install. Great quality. Will continue to do business with Etrailer. Super fast shipping. Thanks
Randy
9/3/2023
Perfection, great quality products
Extremely easy to install! Very straightforward and good quality.
Everything hooked up great for my 2021 cx5
Overall I think this is well made and a very reasonable price. I think the install time is longer than what you suggest. Also, I believe it requires 2 people to install. My only complaint was the 2 sided tape was dried out and would not stick to the car or the module.
Peter
11/18/2023
No problems at all.
Drove from San Diego to Alaska - smooth ride w/trailer...
I think the quality of the wiring harness is horrible. I got the plug and play harness and now my left turn signal flashes like my bulb is burned out. Their not so I took it to the dealership and they said the box where all the wiring goes to is faulty. They disconnected it and it is fine. The problem is I don’t have the box or receipts to send it back. It would be nice if you rectify this problem and I would gladly change my review. This is the 4th hitch and wiring harness that I bought from you.
Jenny N.
10/12/2022
The harness does have a 1 year warranty. I will have our Customer Service team reach out to you.
Just a quality hitch. Has been used to pull an 800lb jet ski and trailer with easy for a year now.
excellent product, i wouldn't purchase it anywhere else. Etrailer.com
The hitch and wiring harness I ordered came quickly and in perfect shape. Your instructional video was very helpful and made mounting a breeze. I have ordered parts here before and have never been disappointed and will continue to use etrailer in the future. Thanks.
Everything was excellent 0ther than the 2 sided tape had no adhesive after removing backers. (Manufacturing issue) May have been on shelf too long but is a non issue. The product functions perfectly.
I have had this for roughly 1 year. I have used the hitch with the wiring harness several times with no issue. It was all straightforward to install using the videos. I appreciate how the harness stays nice and clean tucked inside the car until I need it and then just put it away again.
The wiring harness I bought for my new hitch receiver fit my new 2020 CX-5 perfectly. Installation was easy, after figuring out how to disassemble the rear end of the SUV. The provided connectors mated perfectly with the vehicle connectors. Running a primary wire from the rear of the car to the battery was a bit of a pain; I'd recommend Curt find a way to tap into an appropriate conductor where the harness is being installed on future versions. Otherwise, everything worked perfectly, and when I got the car put back together the entire installation was invisible with the trailer connector pigtail stored in the spare tire compartment until needed. I'm completely satisfied with this harness, and recommend it highly.
Great product, coupled with the very helpful videos from etrailer. The installation was very straightforward, and it seems to be working great in my 2019 Mazda CX-5. No complaints at all here, and for getting a 4 pin connector on my vehicle, I think I made the best choice.
Works fine, but a bit of a project to complete. Tips: Toss the instructions and just watch the e-Trailer installation video on YouTube. Before installation, make sure all your lights function properly. Saves headaches in case you end up having to diagnose a post-install problem. When disconnecting the Mazda taillight connectors, insert a small flat blade screwdriver downward into the locking clip. Rotate the screwdriver slightly as you pull the connector apart. Rather than tap +12vdc off the cargo jack, I followed the recommended step of running the power wire all the way to the battery. When running the power wire under the chassis, you dont need to fit your whole body under the vehicle to route the wire. The 10mm bolts, push pin and various cavities are accessible with just your upper body, although if you're a larger person, a floor jack may be required. The 4 pin connector pinouts are labeled, so you can test the installation with a voltmeter if you dont have a test plug or trailer. Finally, several connections require a crimper with yellow aperture, so be prepared. Good luck!
I installed this wiring harness myself on my 2020 Mazda CX-5. The instructional video was REALLY helpful. It showed in detail how to remove the interior panels to gain access to both taillights. The plug in T-Connectors were a snap to plug in. I chose to run the wire to the battery beneath the vehicle but inside the under sound proof panels so the wire is almost completely hidden from the elements. Works great and I would highly recommend this wire harness for a 2020 Mazda CX-5 (I think it works for earlier models as well)
Great service.
Not a bad install, it was kind of fun. But, in the video I watched they failed to mention the hardest part: running a 12ga, 12V wire from the battery to the rear of the car. It was a little scary drilling a hole in a brand new car's firewall to get the wire through (I did not want to run it under the car, that seemed much sketchier than running it through the interior.) But I hooked it all up, connected my trailer, and, perfect: all lights work great.
Good Product, does what you need. It is time consuming...
Do Not like the fact they want you to hang the plug wires out the tail gate to plug in you trailer. There is a large grommet on the driver side that could be modified to get a good drop to the hitch. I split it and run the wires through then once it was back in place I siliconed it up.
Everything is easy to install except the line to the battery, and that just takes patience. I ended up temporarily removing the driver’s side protectors for an easier and cleaner run up my 2018 Mazda CX-5.
Scott
7/14/2019
One year out and Im still very pleased!
Sturdy trailer hitch for my 2018 Mazda CX5. The installation video couldn't have been any better.
Purchased a Class III Hitch Receiver and wire harness for a 2020 Mazda CX5. Arrived within a couple of days, was well packaged and complete. Hitch installed fine and planning to install wire harness this weekend.
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Josh
12/17/2023
It has been a year, and the new one I put in is still working great.