To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Quickly and easily install a 4-way trailer connector on your vehicle. This T-One typically plugs directly into the back of your factory-installed 7-way connector so you can retain the 7-way and also pull a trailer that has a 4-pole flat.
Features:
Specs:
Installation
This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located behind the rear bumper. If you have a factory-installed 7-way, blade-style connector, the T-One will plug in between the 7-way and the OEM socket.
Once installation is complete, the 4-way flat connector will be stowed beneath your vehicle, near the trailer hitch. A mounting bracket (sold separately) is recommended to keep the connector secure.
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.
California residents: click here
Average Customer Rating: 4.8 out of 5 stars (36252 Customer Reviews)
Quickly and easily install a 4-way trailer connector on your vehicle. This T-One typically plugs directly into the back of your factory-installed 7-way connector so you can retain the 7-way and also pull a trailer that has a 4-pole flat.I am very pleased with the items quality and speed of the shipping process. I had a question concerning the items I purchased so I called customer service and was very satisfied with the polite and professional response I received. I highly recommend etrailer.com as a great place to do business with.
James - 03/13/2021Website very easy to operate and fubd exactly the right part to fit my truck/trailer !!! Videos were very helpful even telling me what sockets and wrenches I needed to complete install by myself and Im a carpenter not really mechanically gifted. Will definitely use etrailer.com again without hesitation!!
Purchased this hitch for my new 2016 Jeep Grand Cherokee Laredo online after being quoted a $700 installation price at my local Chrysler Dealership. After doing some online searching and reading multiple reviews I decided to give these folks a try. My husband and I watched a very detailed video explaining 3 different hitch options for my Jeep and quickly decided for the price it was worth giving it a try. From opening box to install was less than 20 minutes that included connecting trailer light kit that I purchased extra $$.$$. You can barely see it under my JEEP. I'm very pleased and can't hardly wait to use it. Thanks again etrailer.com you helped me prove my to my husband that it would work and saved me $600!
Search hi and low to find what I needed or even for someone who even understood what I needed. I had no luck until I search on etrailer.com. They had exactly what I was looking for. Ordering was simple and delivery was quick. They even check in with me before durning and after shipping. I love this site. I'll definitely shop here first next time.
Bought a trailer hitch, and wiring harness for my 2014 Jeep Grand Cherokee. etrailer was fantastic, right on the money with the videos and it was very helpful in choosing the right hitch. Very easy to install.
I'm a knucklehead. Got the wrong part for my Jeep. Nicole was ridiculous awesome!!! How is it possible that a girl knows what hitch wiring part I need when I ordered the wrong one. I asked her that question and she was embarrassed! This girl needs a big raise. When I got off the phone I said to my wife that is the best customer service ever!! Carvana , who I just bought the car from was horrible and needs to learn a thing or two from etrailer. This is not my first purchase from etrailer which is why I returned. American companies need to learn from them people.
The fit guide on etrailer claims this will fit on a 2010 Tacoma with factory 7 way plug. Well I found out the hard way the factory plug does not come apart as shown in the directions and video. My fault for believing the fit guide and ordering.
TRAILER WIRING HARNESS WENT TOGETHER REAL GOOD. IT ONLY TOOK A VERY LITTLE TIME TO INSTALL. THIS MADE INSTALLING MY LED BRAKE LIGHT KIT VERY EASY.
perform just as expected perfect for the use i had intended a bumper light bar
Although I have not installed the hitch, I did check it for fit and size, and it was perfect! I was impressed with the customer service, during and after the order process. I received a a conformation about my order, and (to my suprise) a name and phone number to contact to call if there was any problem!! The order was delivered 2-3 days earlier than I expected, and was perfect. I have already told my friends about etrailer.com, and expressed my pleasure about the transaction. This is the only company I will deal with in the future.
John M - 06/20/2020Have been looking for a T-connector for my trailer lights for two years. Truck has a seven pin connector built-in. Wanted my GMC emblem to light up when the breaks are applied. Was getting ready to cut and splice wires when I looked on the internet and learned about etrailer.com. Found the T-connector I needed. Took 5 days to arrive after ordering, and 5 minutes to install. Works great !
I purchased a trailer hitch (C13182) and wiring adaptor (T-One 118384) for my 2016 Grand Cherokee. Received it within a few days and fit was perfect! Only took all of ten minutes to install with the help of my 5 year old. Thank You!
As promised well made harness fits well works correctly.
Perfect fit on my 2012 Jeep Grand Cherokee. Hitch and wiring harness installed in 20 minutes. This is my fifth hitch and wiring harness purchased thru etrailer and have yet to be dissapointed. Both the video and written instructions were spot on, the installation of the wiring harness couldn't be easier!
Part # 118384 is designed for Grand Cherokees with a factory tow package. Without the factory tow package, not all functions will work. In order to make it function, youll need to head to your dealer and have them re-flash either the Body Control Module BCM or Power Control Module PCM to fully activate that port.The other option is to use a harness designed for Grand Cherokees that dont have factory tow packages like part # 118425.
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Patrick B - 9/21/2012Worked as expected. 3,000 miles on the trailer and no problem.
Great service. I called with questions before I ordered. No wait time and gentleman was very helpful. Wish all my orders went this well.
Fast shipping great products
Easy to install. Great upgrade to my ve hicle.
Everything fit perfect.
Used it on my truck to install a tailgate light bar. Easy to install works great. Allowed me to hide all the extra wires.
I recently purchased a new 2017 Jeep Grand Cherokee. However, the vehicle was not equipped with with a trailer hitch but came pre-wired for trailering. I asked if the dealership could install a hitch/wiring and was informed that they subcontract the work to a local trailer rental company. I went to the company and was told it would cost approximately $400 and I would have to leave my vehicle with them for four hours, which would have been very inconvenient because I live 50 miles away. As a result, I researched alternatives online to see if I could install the hitch and wiring myself. etrailer.com had the best customer reviews and help videos, so I placed an order for the hitch and wiring harness. My wife and I installed them yesterday, which took about an hour. I saved $270 from what the trailer company was going to charge me. Very happy with the purchase.
Gary G - 04/28/2018unable to locate factory wiring to connect this harness to. sent a search party who said it was located inside of a frame member. still searching...there are NO wires showing under the vehicle and i have not started to pull apart the interior in a search as the weather is uncooperative. i do like the fact that the 4 wire in enclosed in a loom for protection. my last vehicle did not have that feature. it is thoughtful.
On my 2012 GMC Sierra, this was the best way to retain the 7 pole factory connection and also have a 4 pole connection. This product lets me have both 4 and 7 pole connections available at the truck, all the time, without adaptors to carry around. Most of the light trailers I pull have the 4 pole connection. I don't use the factory 7 pole very often. Installation is about 2 minutes. Check out the video on this product, it's very helpful.
The wire harness fit as directed. Simple and easy to install with plenty of length!
I purchased the hitch and plug N play harness for a Christmas gift they absolutely loved the gift and I loved the ease of navigating the etrailer web site purchasing, shipping and receiving was spot on it's been a year now and they still love it Thanks, etrailer Side note: I installed it on a Grand Cherokee installation was easy but you'll need a trailering download from your dealership to get the lights working I believe it was a labor charge of an hour
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