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 with this custom wiring harness. T-One connector plugs directly into OEM tow package port - no cutting, splicing or tapping required.
Features:
Specs:
Installation
This custom-fit T-One connector plugs into your vehicle's factory tow package wiring harness, which is located just behind the rear bumper.
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 plug on your automobile and the 4-pole connector itself - to help prevent corrosion.
California residents: click here
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Speaker 1: Today on our 2015 Lexus RX350, we're gonna take a look at and show you how to install the T-1 vehicle wiring harness for factory tow package. This offers the four-pole flat trailer connector. Part number is 118252.Now when we're ready to use our wiring, we just simply have to undo it there and we'll have the length we need to connect to our trailer. Now here's what our wiring harness is gonna look like. This is one of the easiest wiring kits you'll ever have to install. It's gonna use a factory plug located right underneath the rear of the vehicle.
It delivers 7 1/2 amps for the running lights, 7 1/2 amps for each of the brake and turn signals, which should be more than enough to take care of any type trailer you might wanna haul behind your RX350, and also any cargo carrier you might need lights on.To find our connection to plug into, we wanna look on the driver's side rear of the vehicle. There's gonna be a tow loop opening. That gets eliminated when you install a hitch, but if we look just above that, our plug's gonna be located right here. What we'll do is press in on the tab that's on either side of the little keeper. Allow that to come out, move that down slightly, and we're gonna push on that tab right there to release the cap, just like that.Before we plug that in, we highly recommend you use dielectric grease.
We've got it on our website as part number 11755. This just prevents moisture from getting in our plug, which when combined with dust or anything else, causes excess corrosion. With that on there, we're gonna plug it right back in. You wanna squeeze it until you hear a little click, then we'll replace that keeper right back into the original hole.Now we'll take our four-pole flat side. We'll run it right along the back of the fascia so we can pull it down.
All right. We'll bring that around the back side of our hitch. Now we're gonna pull out the amount of slack we need to make the connection with the trailer, and I'm gonna use a long zip tie to go around our hitch here and secure our wire loom right up there.We'll trim that off, then we can secure our wiring, just like that. It's also a good idea to put a little bit of dielectric grease in here just to protect that from any corrosion as well. Now we've got a little bit of slack left over here.
Whatever you have left over, we can use that hole right above the keeper for that plug and zip tie it up out of the way. We're gonna test it out with part number I26, just the standard four-pole tester. Now we can start by turning on our running lights. We'll try the left blinker, right blinker, and the brakes. Now with everything working as it should, that's gonna complete our installation of the Tekonsha T-1 vehicle wiring harness with the four-pole flat trailer connector, part number 118252 on our 2015 Lexus RX350.
Average Customer Rating: 4.9 out of 5 stars (115 Customer Reviews)
Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into OEM tow package port - no cutting, splicing or tapping required.FITS the new 2020 HIGHLANDER! There is a new connector with the 2020 Highlander redesign under the driver side rear bumper. This cable plugs directly into the Highlander connector. See photo. There is no need to route or run wires for the trailer wiring. You will also need a converter to provide the correct signals to this cable. I recommend using the Toyota Plug-n-play converter part number: PT725-48200. It’s around $60 online. Be aware it is installed behind a panel located next to the driver’s side second row seat. Toyota completely changed the vehicle wiring for the 2020 model year. I also recommend the CURT C99FR hitch. Fits perfectly, easy to install and hides behind the bumper. 784602
I ordered and received a trailer hitch and wiring kit for my 2015 RX350 and also received a very informative video with it. It fit great and is almost invisible and no drilling was necessary. The only issue I had was I was supposed to reuse 2 of the bolts to rehang the exhaust but my bolts were tapered on the end and wouldn't fit so I had to use some generic bolts. But it's still a great product. 752659
Perfect product and fit for my unusual vehicle model. Great service all around. 730341
Just installed Draw Tight hitch, wire assembly along with the brackets for a nice look. Everything went smooth with installation and it has a nice clean look as the hitch is well hidden. This is going to work for our bike rack and the cargo carrier I am now going to by. Now I can also get a small utility trailer to pull and haul stuff. I strongly recommend etrailer for all your needs as they communicated with me the whole way through and readily replaced a lock unit that somehow came without the key. Customer service is top notch. 635012
Scott N - 04/26/2020I got the trailer hitch the rubber hitch cover and the wiring harness delivered in 5 days from the day that I put my order in, very easy to install nice and tucked underneath the bumper,very well built and very well priced. 735764
Our Greeen Bay ,WI shop has purchased dozens of name brand hitches and wiring systems from etrailer . Very fair pricing and super fast shipping on their high quality products. Makes our obtaining the right items easy ,and our customers happy. Thanks for keeping us looking good ! 716494
This hitch was very easy to install. I did not have to lower the exhaust. I just had to pull down a little for the hitch to slip over it. My vehicle was already prewired from the factory so the wiring was simple plug and play. One connector just had to remove the factory connector cover and plug it the harness and route harness along hitch. A couple of long tie wraps, black electrical tape or any other type of tape would work great for running the harness along the hitch (not supplied). I am attaching several pictures after the installation. It looks great and is very well hidden. Receiver is all that shows with wire connector. There is about 12 to 18 inches of wire above the facia that can be pulled down for use if needed. Very glad I ordered the Curt hitch #13541 and T-One wiring Harness for the Factory Tow package #118252. By the way Great service from ordering over the phone to delivery. 76344
John G - 04/16/2014Perfect fit on my 2015 RX 350 with factory tow package. 141247
I've installed several trailer hitches in the past. The only way this installation would have been any easier would have been the young lady, taking the order, agreeing to come over and do it. I'll install these hitches all day for half what [the vehicle dealer] charges. The 3 plastic/rubber plugs, on the left side, pop right out and the 2 tow bracket bolts, on the right side of the car, unscrew easily with a 19mm socket. I didn't have anyone to hold up one end of the hitch so I used an upside bucket to hold one end up while putting the two bolts in the other side. The heat shield never came close to contacting the hitch, so no adjustments were needed. The wiring harness was also easy to install. There's a pre-wired plug on the left side of the car near the exhaust pipe the harness plugs into. This car was ordered with the towing package so it's my understanding the harness is all that's needed. 682403
Product arrived quickly. Well packaged. Simple instructions. Easy to install. I saved a lot of money doing this myself. Very pleased. Highly recommend this company and product. 803004
Purchased this part for my 2013 Lexus RX350 trailer hitch installation and the install was as easy as it gets ... just plug it in and use ties to wrap the excess cable to the hitch. Can’t say much about it yet because it’ll be a long, long time until it will be used (if at all). I figured since the Lexus has the factory towing electrical packaged, it would be a good idea to connect the lights while the panel was already being removed for the hitch installation. 799868
Easy to order, easy to install. Ordered a hitch and light kit for my 2019 Lexus RX - 350 .watched a short video on[line] and installed it with no problems. Fit was perfect . Great quality hitch. 798358
Super easy to install 795479
Product is excellent but video for installation is incomplete. You failed to show the need to remove a shield underneath the rear storage area of the vehicle and it would have been helpful to show how to remove the cap to the wiring harness. 792387
Works as specified. Nothing sexy about a wiring harness, but I am happy with quick shipping, great pricing, and durability. 790125
Works as advertised. I installed a pair of these on our new cars in under an hour...the wiring was truly "plug and play!" 789569
Came in on time. Plug and play as expec ted 785026
Perfect fit and easily to install. 783062
Right product fit the first time and fast shipping. Thank you Taylor M. for your help. 782976
Both the purchase and installation experience where excellent. They have a terrific website which is one of the best I have ever utilized. The installation went as described on the website and in the video. I completed the whole installation process in my carport with simple tools all in about 2 hours. This whole process has exceeded my expectations! Thank etrailer, Michael H. 04-16-2020 779745
The harness is extremely good quality. The fit was perfect. The only problem was getting the factory protection cap off of my cars wire harness. I bought this in conjunction with the Draw-Tite Max-Frame Trailer hitch 75676. 773823
Hardest part was getting the OEM plug off the Lexus adapter. The length of the harness seemed a bit long, but I don't have experience with hooking up trailers and you probably need that length. . 773703
that item perfectly fit to my 2020 highlander xle 773224
Fit perfect 771366
Great product!! Installed with no probl ems. 770281
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