Arrives before Christmas 
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Install a 4-way trailer connector on your vehicle with this wiring harness with tail light converter. Requires splicing into existing vehicle wiring. Works with domestic and import vehicles. Includes wire taps.
Features:
Specs:
Included in Hardwire Kit:
Note: Requires install kit 55151 to help run wire to vehicle battery.
Because most trailers run on a 2-wire system - wherein the brake and turn signals are carried on 1 wire - the signals from your vehicle may have to be converted to be compatible with your trailer's wiring.
If your vehicle operates on a 3-wire system, which means that it has separate brake and turn signals, then those signals will need to be combined so that they run on 1 wire to properly activate your trailer's tail lights.
Note: This will not affect how the tail lights on your vehicle operate.
Because most trailers run on a 2-wire system - wherein the brake and turn signals are carried on 1 wire - the signals from your vehicle may have to be converted to be compatible with your trailer's wiring.
If your vehicle operates on a 3-wire system, which means that it has separate brake and turn signals, then those signals will need to be combined so that they run on 1 wire to properly activate your trailer's tail lights.
Note: This will not affect how the tail lights on your vehicle operate.
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.
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.
To determine where to splice into your vehicle's tail light wiring, you will need to consult the included instructions. Use the quick-splice connectors to attach the input wires of the tail light converter to the corresponding wires from your vehicle. To get the power necessary to operate, the harness must be connected to a 12V power source. To do this, you will need the Curt powered converter wiring kit (55151 - sold separately), which contains the power wire that connects your battery.
Then locate a flat surface inside your vehicle near the tail lights and adhere the black converter box using the provided double-sided tape. Find a raw metal surface to use as a ground point and secure the white ground wire using the provided ring terminal and screw. Finally, secure the converter wires to your vehicle using the included cable ties.
It is recommended that you use a small amount of dielectric grease on the 4-pole connector to help prevent corrosion.
California residents: click here
Wired up fast and works flawlessly. I pray it'll last longer than the non-curtis direct hook up connector harness I bought a couple of years ago(it lasted a year and then the black box smoked). Only issue is that it doesn't come with everything you need, but I already had a wire and extra stuff anyway! I used the blue smash in butt connectors supplied instead of soldering it in. Great power!
Installed easily on my 2019 Sprinter RV. Works well which is something I could never say about the Sprinter tow system. Thanks to etrailer for the advice and excellent training videos.
Works great
Good Product and Great Service!
Worked fine, I easy to install.
It only lasted maybe 3 months after that it was dead to the world even hooked up straight to the battery no voltage out with a meter! Very dissatisfying
This is my second order from trailer and the entire experience has been PERFECT thank you
Arrived on time and packaging was very secure andneat
Trailer electric harness arrived perfectly, installation was very straightforward, I am very satisfied with this product
I didn’t like the way it cut into the vehicle wiring, so I bought an OEM harness from Mazda for my 22 CX5. My dealer gave me great instructions and nice sealed connectors. YMMV- I think trailer is a great company and will do business again. The hitch I bought is FANTASTIC.
Have purchased a number of hitches and wire harness for a number of different vehicles I have owned. All products were easy to install and worked perfectly . The instructions were clear and quality of their products is top notch. I have used their customer service to ensure I was ordering the right product for a older vehicle (75 Toyota Landcruiser) they were patient and ensured I got the right set . Their customer service is matched by their pricing and that would be hard to beat . Delivery (Canada) was exceptionally fast. Probably not my last order and I have recommended this company and their products to my friends. If your considering a purchase I don't think you will be disappointed and you will be saving lots of money doing it yourself.
Installed this kit on my 2022 VW Passat. It works good however finding the right wire was a challenge. I wish that there was a plug and play taillight converter available.
was a pain to install and the left turn signal still doesn't work after multiple attempts.
Easy installation with included parts.
Kenneth
8/26/2023
I installed this on my 2004 bmw325 and it was an easy install and it has worked great.
Did what it was supposed to, and keeps doing it!
Easy replacement for the old one. No problems encountered at all. Recommended.
Peter
3/13/2023
Still working great. Absolutely no problems. Had to tap into the fine wires on my 2006 Nissan X-Trail near the spare tire. Also brought a higher gauge wire from the battery via a fuse in the engine compartment routed under the car. Highly recommended.
I can't believe I have to use this universal kit for my Corolla Cross just because it is an XLE and you (Curt) cannot figure out how to make a plug and play kit like for all other models of Corolla Cross.
Fixed my problem perfectly. No thanks to Forest River for not owning up to the problem.
Contained everything pictured and worked well for running power to the powered tail light converter
It's waterproof, so it's great for installing outside.
I put it in today and it works great! Great service at etrailer.
Fast delivery , easy installation
great product! I had the local UHaul install this product. So far it works real good
Wiring was properly installed and it works great!
Its good product..fit perfectly for my metris 2016
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Brooke M.
3/1/2025
Hey Brittany! I am sorry its been a frustrating experience with the wiring so far. I hope we can maybe find you something thats a better option for your vehicle. Do you know if you have the factory tow package? If you do, Part # 118277 is for 2019 Mitsubishi Outlander thats not the PHEV model WITH the factory tow package, and part # 118482 is if you have that same vehicle WITHOUT the factory tow package.