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Custom Fit Vehicle Wiring > 2009 > Jeep > Grand Cherokee

Tow Ready Custom Fit Vehicle Wiring for the 2009 Jeep Grand Cherokee

Tow Ready Custom Fit Vehicle Wiring

Rating: ratingratingratingratingrating
95 reviews


Code:   118425

Retail:$32.52

Price:$25.95

Shipping Weight: 1 pounds

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T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 2009 Jeep Grand Cherokee

Quickly and easily install a 4-way trailer connector on your Jeep Grand Cherokee with this custom wiring harness. T-One connector plugs directly into existing wiring - no cutting, splicing or tapping required.

Features:

  • Provides a 4-way flat trailer connector at the back of your Jeep Grand Cherokee to power your trailer's signal lights
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate connection points behind tail lights
    • Plug in T-connector
  • Constructed of 16-gauge bonded wire
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage: 7.5 amps per circuit
  • 1-Year limited warranty


Installation

This custom-fit T-One connector plugs into your Jeep Grand Cherokee's wiring harness, which is located behind the driver's-side and passenger's-side tail lights. You will have to remove the tail light assemblies to access this harness. If extra length is needed, you can cut the zip tie on the passenger side harness.


T-One Connection Location Points Behind Tail Lights

Once installation is complete, the 4-way flat connector will be stowed beneath your Jeep Grand Cherokee, 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.



118425 Tow Ready T-1 T-Connector - 4 Wire



Video of T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector


Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.

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Video Transcript for Trailer Wiring Harness Installation - 2012 Jeep Grand Cherokee

Today on our 2012 Jeep Grand Cherokee were going to install the Tow Ready T1 connector part :# 118425. First well need to access the rear cargo area of the vehicle. Well need to remove the drivers side real taillight lens assembly. There are two fasteners, there are push pin fasteners. Itll take a screwdriver to pry out the center of the fastener and then remove it. With our fasteners out well gently pry the lens assembly out away from the body of the vehicle.

Next what were going to do is disconnect the taillight connector from the lens assembly. It will be the large black connector with a red locking tab, so well unlock the locking tab pressing the connector lock and detach it from the lens assembly. Now we can take our new Tow Ready harness and plug it in line with the manufactures wiring. We will be using the yellow, brown and white wire and connectors and first well plug in and then well lock in place. The other end will go into the taillight assembly.

This plugs us in line with the manufactures wiring. The remaining wires we have is going to be a white and green wire and the 4 pole connector. These will get fed down between the bumper cover and the sheet metal of the vehicle. Alright, with our wire pulled down from underneath the vehicle well go ahead and install the drivers side taillight assembly. With the taillight assembly reinstalled well go ahead and get under the vehicle and start routing our wires.

Now, when routing our wires we want to keep them away from moving components such as the steering and such as the suspension or excessive heat such as the exhaust. To rout my white and green wire over to the passenger side Im going to feed them through in the inside of the bumper structure itself. To do this Im going to take a piece of air line or a stiff piece of wire as a wire lead to feed it through the bumper and pull it out the other side. Im going to tape my wire with a black electrical tape and just tape it to the end of my wire pole. Now well go ahead and pull it through the bumper over to the passenger side.

Alright, now that were over the passenger side with our white and green wire we can go ahead and remove the passenger side taillight assembly. Once we do that well feed our wire up behind the taillight and make the connection. To remove the passenger side taillight assembly well repeat the same process as we did on the driver side. Alright, now weve got our wire pulled up behind the taillight Ill go ahead and remove my pole wire. Well go ahead and make our connections to the taillight assembly. Now we can take our white wire with the ring terminal, this will be our ground wire, and attach it here to the body to ground our harness. Well use our self-tapping screw to run it directly into the body of the vehicle. Alright, with our ground made we can go ahead and reinstall the taillight assembly. Well go ahead and close the car door, get back underneath the vehicle and complete routing and securing our wires. Rout it up behind the bumper structure and over to our hitch. Now Ill just take some black zip ties and secure my wire. With my wire secured Ill just take my side cutters and go ahead and cut the excess from our zip ties. And that will complete the install of our Tow Ready T1 connector part #: 118425 on our 2012 Jeep Grand Cherokee.


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Customer Reviews

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 118425

Average Customer Rating:  ratingratingratingratingrating4.5 out of 5 stars   (95 Customer Reviews)




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ratingratingratingratingrating by: Andrew D.02/04/2012

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I too thought the harness was too short, but it turned out that there is a zip tie holding the passenger side wires to the driver side. You can snip that zip tie off and give yourself some slack. 31060

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ratingratingratingratingrating by: Jarod N.05/22/2012

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This harness is easy to install and works great. The harness is NOT too short as some reviews have indicated. I'm glad I read the reviews first to see that others were having trouble with this. All you have to do is clip one of the cable ties holding the harness together and there is more than enough wire to reach the passenger side.41308

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ratingratingratingratingrating by: Bob07/02/2011

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Have a 2011 Jeep GC- product works great- don't listen to the other reviews about harness being too short. It's close, but you have to watch not to get the small transfer box on harness caught up on anything- that's what it did and I threw a fit, but once I figured it out I had about 1-2in to play with on both tail lamps. The hitch wire/plug has plenty of length- prob about 1ft extra that I zipped up behind bumper cover. I did have to drill a very small hole at the bottom of the rear body for the ground. *Etrailer was very, very fast with the shipping, even with the free shipping. Would definitely buy from again18420

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ratingratingratingratingrating by: Nicole S05/27/2013

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Very easy installation and great videos. Don't pay someone else to do it. Do it yourself.82047

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ratingratingratingratingrating by: Keith H.05/23/2013

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Made wiring the trailer very easy. Custom fit for my vehicle. Done installing wiring and hitch in 1/2 hour.81703

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ratingratingratingratingrating by: Thomas Staiano04/23/2013

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Recently purchased a bundle (trailer hitch, wiring harness, ball mount kit). I found the online experience to be pleasant and helpful. Browsing and looking for the hitch I needed was very easy. I also found the YouTube video etrailer.com had for my vehicle on installing the hitch as well as the video to install the harness kit very very helpful for a DIYer like myself. The video reassured me that I didn't need to make any cuts or modifications to my vehicle's body, which is a piece of mind. Thanks again and I would recommend etrailer.com to friends, co-workers and family. 77568

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ratingratingratingratingrating by: no name04/20/2013

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Very easy to install. I think If it was a little longer and came with wire loom it would look cleaner to run under the car where the factory wires are already ran loomed up. But I was pleased with the end result. 77040

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ratingratingratingratingrating by: Chris B.04/18/2013

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AMAZING JOB!!! I must admit it was just as easy as all the reviews say. However, one issue...charge me $5 more next time and make the wiring kit 2 inches longer, not a hair to spare on the ground wire! 2nd set of hands recomended, especially on the wires. Other than that excellent!!! Thanks Guys!76788

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ratingratingratingratingrating by: Abaz04/16/2013

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Great product 76397

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ratingratingratingratingrating by: Steve04/14/2013

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So far so good! Trailer hitch & wire harness arrived & I installed them without any problems. The installation video's for both the hitch and the wiring were excellent. Much better than the written instructions provided with the product. For the wiring installation I was under my Jeep with my ipad watching the video. As others mentioned I did have to clip one of the preinstalled wire ties to provide enough length to connect both lights. Overall I am totally satisfied with the product, price & service at e-trailer. 75967

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ratingratingratingratingrating by: Raymond A04/01/2013

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This work just like the web site said it would easy to follow instrcutions from web site.73565

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ratingratingratingratingrating by: Travis02/16/2013

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Very easy to install. 66551

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ratingratingratingratingrating by: Allen01/25/2013

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Very fast shipping... Great product. 64158

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ratingratingratingratingrating by: Kyle01/14/2013

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The product is very easy to install. For those with comments about the wires being too short to get to the passenger side, all you have to do is cut a zip tie on the harness and there is more than enough wire supplied. Installation took about 30 minutes and the video on the website is excellent. The shipping and notification procedures with e-trailer are great. It's a pleasure doing business with them. 62962

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ratingratingratingratingrating by: S.Wilson01/09/2013

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installing this wiring harness was so easy anyone could do it just by watching the video. I am extremely pleased with the product. I save $150 in labor by installilng this product myself. 62635

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ratingratingratingratingrating by: Gerry S10/16/2012

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Ordered Trailer hictch and wiring harness for 2013 jeep grand cherokee Only issues was chiped powder coating durring shipping and zip tie that needed to be cut on wire harness to get it to reach both taillights. Would order again57378

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ratingratingratingratingrating by: Mike W10/14/2012

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Great fit and easy install for both the trailer hitch and wiring harness57187

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ratingratingratingratingrating by: Kevin C10/08/2012

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Plug and go. Just don't forget to ground , my mistake for not looking at the directions after the first side was done. Very easy to install.56656

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ratingratingratingratingrating by: Tony10/07/2012

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Easy to install just like it says. 56643

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ratingratingratingratingrating by: Tom D.10/05/2012

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My package arrived within a few days and was packaged well. It was a super easy install and the Training Video was awesome!! Wires are made well and work perfectly!! I highly recommend etrailer.com to all. Thanks, Tom D. 56353

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ratingratingratingratingrating by: Rich h09/30/2012

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Wires going to passanger side are to short to make this install easy.Running wires through the existing frame support as show in film,does not allow for large connectors to pass through , and this routing makes the wire short.56165

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ratingratingratingratingrating by: Jeff Mc09/28/2012

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This is a very nice product. Simple to install. Solid construction. Plenty of wire length. Just be very careful when pulling the tail lights - wiggle, pull, shake to work the locating studs loose. It will come. Resist the temptation to pry and chip the light like I did. Tuck the splice socket between the tail and backup light reflectors to get it out of the way when going back in. Lube the studs and rubber sockets with a little soapy water when going back in. It helps a lot.56087

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ratingratingratingratingrating by: Lesa M09/18/2012

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I just wanted to let everyone know how easy it was to assemble. I don't have any mechanical back ground but found this to be very easy to do. Just watch the video. Some say that they need to add a short piece of wire but I think what happened the had the wiring turned around. Do your double checking before you assemble it.54986

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ratingratingratingratingrating by: James R.09/02/2012

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Very easy install and completed in 15 minutes. 53795

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ratingratingratingratingrating by: Barb C.09/02/2012

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Wonderful. Install was simple and it fits the Cherokee perfectly. Saved a lot of money from what the dealer wanted for a factory product.53784

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ratingratingratingratingrating by: Joe F.08/27/2012

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The order and installation was painless. The harness goes in easily, but you'll probably have to remove a couple of the clips from the first side to get the wire to extend to the opposite tail light. In fact, you'll then have too much wire that you'll need to tie up.53225

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ratingratingratingratingrating by: Bob L.08/27/2012

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The only way it could be better would be to include a bit more wire for the passenger side connection.53191

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ratingratingratingratingrating by: Chris J.08/26/2012

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Don't listen to anyone who says its too short. Just clip the last zip tie if it does not reach for you. Don't cut the harness like some have said. This goes in quick, only other thing I would add is take some of the paint off around your ground hole so you get a bit better contact; steel wool works great. 53084

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ratingratingratingratingrating by: Luke D.08/15/2012

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Watching the video made it really easy to install. However, I had to cut one of the zip ties to allow the wiring to reach the tail light on the other side.51768

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ratingratingratingratingrating by: Derek M.08/13/2012

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very easy to install 51588

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ratingratingratingratingrating by: Adam S08/11/2012

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Extremely fast shipping! Great experience. As other have mentioned... YOU HAVE TO CUT THE TIE TO EXTEND THE HARNESS. THIS WILL ALLOW THE WIRE TO HAVE THE RIGHT LENGTH. THE TIE IS ON THE PASSENGER SIDE AND YOU SHOULD CUT THE TIE BEFORE BEGINNING INSTALLATION. GREAT PRODUCT HOPE THIS HELPS!51389

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ratingratingratingratingrating by: ACrump08/09/2012

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Wiring harness fit Jeep Cherokee Laredo exactly. No problems with install following online video. Great product/price.51078

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ratingratingratingratingrating by: Andrew H08/07/2012

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Like most people, i read most of the reviews for this product with half of them stating the wiring was not long enough and the other stating it was. I found this to be both truthful and false. Using the wiring as it was shipped resulted in it not being long enough to cover the spread between my tail lights. After I noticed this, I reviewed how the wiring was held together and noticed that a zip tie was shortening the overall length of the wire. I cut one(1) zip-tie and then had more than enough length of wiring to connect to both tail lights. Very good product, i have not had an issue since installing.50855

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ratingratingratingratingrating by: Neal Owings08/03/2012

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I was very pleased with the price, quality and speed of delivery. The only negative I have that you may want to correct is that the wiring harness, supposedly made to fit my Jeep Grand Cherokee, was about 18"to 24" too short when attempting to run the harness from the driver side connection to the passenger side connection. I was able to correct this by splicing in an additional length of wire in order to make the passenger side connection and enable the ground wire to be attached as shown in your video. No problem or action on your part is required other than you may want to get the manufacturer to lengthen this portion of the harness. Thanks for asking.50433

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ratingratingratingratingrating by: George F.08/03/2012

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SUPER GREAT PRODUCT! I own a auto repair shop and my mechanic installed the wiring harness on my 2012 Jeep in 15 minutes. This is the only way to go, no splicing wires and no guess work. Thanks for being there and remember you built it not the govt... 50359

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ratingratingratingratingrating by: ken P.07/16/2012

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The wire kit # 118425 is about an inch to short, If you don't install just right, you can't replace the tail light on the passenger side.48122

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ratingratingratingratingrating by: Randy P07/11/2012

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This is an excellent product. It is very easy to install and works like advertised. I used the cheap plastic "loom" wiring enclosure to protect the harness under the Jeep and the installation looks at least semi-professional if I do say so myself. It was shipped quickly and without hassle.47520

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ratingratingratingratingrating by: Keith K.07/08/2012

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Item got here quickly and it was easy to install. Love the do-it-yourself videos. Anyone can install this.47158

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ratingratingratingratingrating by: jay f.06/18/2012

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very easy to install. would have been nice if they mentioned to snip off the wire ties before install to make it long enough. other then that, was delivered just when we needed it. would order from etrailer again!44714

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ratingratingratingratingrating by: Fred C06/18/2012

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First of all I couldn't believe how fast the trailer hitch was shipped in, just a couple of hours after ordering I had tracking and three days later it arrived, "free shipping". Packaging was fine and hitch was well protected. Installation was a breeze , it took longer to open the box then it did to install the hitch. Only a socket wench was required. I have already told others about these guys.44683

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ratingratingratingratingrating by: Jim C06/17/2012

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All went together very well. Once again watched the video for tips on installation ideas. So far so good.44489

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ratingratingratingratingrating by: Dan06/11/2012

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Thank you etrailer for a trouble free experience. My order was processed early, and this product arrived a day sooner than anticipated. After reading some of the reviews on here about the harness being too short - I was slightly apprehensive, but I possess some wire strippers and a bit of common sense, so I thought I would give it a shot. The entire process took 15 minutes. The hardest part was removing the tail-light assembly (2012 Jeep Grand Cherokee - just pull firmly straight towards the rear once the two fasteners are removed. Its tricky to grip, and the internal plastic clips offer a bit of resistance - but it will come). Yes, there is an extra zip-tie on the harness which makes things tight if you are routing through the bumper as the video shows. Simply snip that tie, and installation is a breeze. I will be placing more orders without hesitation when the needs arise.43743

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ratingratingratingratingrating by: ken06/09/2012

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Product was just as descibribe. Works p erfectly.43431

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ratingratingratingratingrating by: Jorge V. - Miami, FL.05/22/2012

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Incredibly easy installation, total install time was 20 min. This was by far the best wiring harness for a vehicle I have ever purchased and installed. Thank you for the video eTrailer.com41273

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ratingratingratingratingrating by: tom B05/06/2012

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very easy to put together. like the video that you can watch39517

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ratingratingratingratingrating by: James04/30/2012

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Searched the internet for a reputable place to order a hitch for my Jeep. Luckily I found Etrailer.com!!! Place my order for the hitch and wiring kit. Producrt arrived in 2 days!!! Products were high quality and super easy to install!! The video of the wiring harness installation helped a ton!! Thanks etrailer for fast shipment and quality products. I will definitely order from etrailer in the future!!!38839

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ratingratingratingratingrating by: Bryan T04/06/2012

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Ordering was simple, it shipped the next day, installation was easy, and the product works great. Thanks etrailer!36301

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ratingratingratingratingrating by: Matt S.04/06/2012

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This product was a very easy install and appears to be a great wiring harness. The only thing that I wish came with this harness kit is a bracket to hold the 4 pin connector.36300

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ratingratingratingratingrating by: Chris04/04/2012

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Excelent service and excellent product, despite the low price. I haven't installed it yet, but according to the video it should go on very quickly and easily.36162

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ratingratingratingratingrating by: Scott04/03/2012

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Purchased the hitch and wiring. Very easy to install and took less than 1 hour. Awesome product and worked exactly as advertised!35986

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ratingratingratingratingrating by: Tom Kwasinski04/02/2012

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Install was a breeze, your video cover the install perfectly and if I wasn't taking more care than necessary to remove my tail lights I would have been done in half the time. Thank you35875

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ratingratingratingratingrating by: Parker W. Bergman03/29/2012

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Eerything came, quicker than I thought it would, and fit perfectly. The install took about 45 minutes with a little auto knowledge and a pal. Tows great now thanks to suggestions by staff and the proper order. I will use you again in the future and so will pals.35537

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ratingratingratingratingrating by: Steve H.03/25/2012

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Everything fit perfectly. I had initally ordered the wrong wiring but etrailer sent me new one right out. I had also purchase a trailer hitch assembly for my Jeep Cherokee and the installation was very easy. Thanks etrailer.35074

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ratingratingratingratingrating by: Dave B03/23/2012

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Easy to install. 34909

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ratingratingratingratingrating by: Russ T03/21/2012

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I found the Wire harness very easy to install and it looks like it came from the factory. The instructions are pretty easy to follow, more pictures would be nice. All in all very straight forward and easy.34600

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ratingratingratingratingrating by: Frank M.03/21/2012

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product is accurate 34592

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ratingratingratingratingrating by: Ryan W.03/19/2012

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Installation was a breeze thanks to the video. Great overall experience.34384

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ratingratingratingratingrating by: Brian k03/18/2012

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one stop shop everything i needed all in one place easy installation great products34286

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ratingratingratingratingrating by: Ben H.03/01/2012

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Very easy to install. Step-by-step instructions plus video on this website are extremely helpful... highly recommend installing yourself and saving $ignificant labor charges...32866

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ratingratingratingratingrating by: Jim S.02/26/2012

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Good price. Quick shipping. Quality product. Overall good experience32568

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ratingratingratingratingrating by: Don B02/26/2012

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Easy to install- 20 minutes-others say wires too short I didn't have any problems. No cutting or splicing "plug&play" Great value!! I added wire loom covering to give it a professional look on my 2011 Jeep Cherokee Limited32552

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ratingratingratingratingrating by: Andrew D.02/02/2012

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Very nice product and super easy installation. Took less than 10 minutes from start to finish. Outstanding company to deal with. Never been catered to like I was with etrailer!!30914

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ratingratingratingratingrating by: Brandon02/02/2012

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Excellent shipping: quick and FREE! 30912

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ratingratingratingratingrating by: Mike H.01/30/2012

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Very Easy to Use, Installed in about 10 minutes and worked perfectly.30573

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ratingratingratingratingrating by: Becky01/20/2012

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Installed nicely... 29993

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ratingratingratingratingrating by: JBnFl.12/20/2011

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Quick, easy, good to go! Length not a problem for my 2011 Jeep GC. After this experience with the 118425 I'll never spend $200+ on a factory wiring harness and installation again. Seems the Jeep people can't install what they sell and get it to work so thanks to those who know how to make things simple. 28373

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ratingratingratingratingrating by: w carson09/30/2011

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very happy with this the shipping was fast product was great. a+ to etrailer will do more business with you guys anytime and most likely will also. thanks -Carson24871

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ratingratingratingratingrating by: James W.08/27/2011

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made installation a snap---15 minutes or less22916

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ratingratingratingratingrating by: Eric H.08/12/2011

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Toughest part was prying off the connectors from the back of the taillights. Easy install after that. Clear directions.21753

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ratingratingratingratingrating by: Ron D Canada08/04/2011

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The Hidden Hitch fit and installed exactly like it was described. Very good and clear instructions. Nice neat looking installation. etrailer's service was top notch, delivered in 4 days regular ground service. 21161

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ratingratingratingratingrating by: Allen M.08/02/2011

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Great plug and play harness. Everything needed was included in the kit.20922

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ratingratingratingratingrating by: Jose S.07/25/2011

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Installation of this harness was very easy after I watched the harness install video. Together with this harness, I also ordered from etrailer, a 10 foot long plastic wire loom (PN 39035) which I used to cover the wires before installation. I thought this would insure protection of the harness wiring as it is routed under the bumper. This harness would have been perfect if it came with the plastic wire loom already installed. It only took me a few more minutes to install the loom so no big deal. The harness was of perfect length and all the connectors just snapped easily.20265

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ratingratingratingratingrating by: John K07/23/2011

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Works great and very easy to install but wires could be about 6-12 inches longer which would be easier to het across under the bottom the truck.20065

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ratingratingratingratingrating by: sandra d06/13/2011

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Ordered friday and received Monday! Only took about 45 min to install receiver and wire harness. 16885

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ratingratingratingratingrating by: ryan05/17/2011

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good product. easy to install 14481

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ratingratingratingratingrating by: William H04/26/2011

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Another great product, easy to install! Thanks12412

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ratingratingratingratingrating by: Matt M.04/17/2011

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Excellent quality and very east to inst all.11877

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ratingratingratingratingrating by: lyle selby kalamazoo mi.04/12/2011

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took about 20min well worth the money just pop out the tail lights and plugg them in11534

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ratingratingratingratingrating by: Carey S03/09/2011

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Very easy to install and works great, the only problem is the cover for the pins does not fit very well. 8918

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ratingratingratingratingrating by: Ken W03/09/2011

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The item came earlier than expected so the service was excellent. The installation was a breeze. Shims were supplied in case you needed them for a tighter fit. It took us maybe 25 minutes total for the installation.8865

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ratingratingratingratingrating by: Carl F03/05/2011

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The video was great and explained the procedure. With the help of a wire coathanger it was easy to pull the harness up on the right side.I had to run a additional ground wire back to the chassis since my 2011 Grand Cherokee had no place to ground by the tail light housing. Very simple to do.8539

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- 118425

ratingratingratingratingrating by: Kevin C.03/04/2011

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excellent service, fast delivery and followup THANK YOU!8474

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- 118425

ratingratingratingratingrating by: Steve03/03/2011

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Simple installation, plug and go!! 8392

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- 118425

ratingratingratingratingrating by: mike n.06/17/2010

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save me lots of time and money I had bought the factory harness for 104 dollars. Waste of money. You have to have them do it because it needs to be programed. I returned it after they wanted 175 dollars to install it. etrailer got me a harness within 4days it only took 5mins to install best decision ever.3142

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- 118425

ratingratingratingratingrating by: Rod R08/01/2009

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Fit my 2009 Grand Cherokee A+ Etrailer.com had this item instock, Shipped it very fast, Product fit my Jeep perfect. Excellent Communication, Their instruction videos helped alot. A+++ Sellers. Thanks!2201

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- 118425

ratingratingratingratingrating by: Bob11/21/2007

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made for easy install good quality + good fit498

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- 118425

ratingratingratingratingrating by: Mike C05/24/2012

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Wires too short. Had to splice in a pi ece.41598

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Comments

To get enough length, all you have to do is cut the zip-tie holding the two halves together. Peel the bonded wire apart until you get enough length.

Patrick B - 11/21/2012

453



- 118425

ratingratingratingratingrating by: Steve B.05/18/2012

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This harness would get an excellent rating but is is too short. I have a 2012 Grand Cherokee. The video shows the harness going thru the bumper tube. Way too short. It was still too short when I ran it above the bumper tube. I ended up extending 2 wires. Other than this problem, it is a well made harness. 40982

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- 118425

ratingratingratingratingrating by: Lonnie F.05/01/2012

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Wires for passenger side not quite long enough to hook up per instructions but made it work. The connections made it real easy and it works well.39065

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- 118425

ratingratingratingratingrating by: Rodney R04/24/2012

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Connected to drivers side light per directions then went to passenger side and wiring was too short!! Had to splice in about 8" of the green wire!!38257

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- 118425

ratingratingratingratingrating by: Jim L.04/21/2012

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I have a 2007 Laredo and as others have mentioned the wire harness is too short. I watched the video and the harness in the video appears to be plenty long. I had to cut and splice mine, it needed to be at least 6 inches longer. Not sure if this is quality control issue, but other than that it works fine.37921

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- 118425

ratingratingratingratingrating by: Nick V.11/09/2011

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I bought this wiring harness as an after thought. I had purchased the trailer hitch earlier in the year to mount a bike rack on my Grand Cherokee and since I do not own anything that needs to be towed there was no reason for having a harness. Since that time I have had to tow a few thing like a Uhaul trailer and a rented log splitter so now the need is there. I have dealt with eTrailer on other occassions and so far EVERY experience has been a good one. When I decided to get a harness I did not spend any time loooking anywhere else. I had read the reviews and although most were positive I did see a few that were negative about the length of this item. I will admit that on my first attempt I also thought that someone made a mistakewith the length. I did take a few more minutes and tried another route and had more than enough wire. As with my previous purchases I am once again a very satisfied customer. Keep up the good work!26768

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- 118425

ratingratingratingratingrating by: Dan G.08/30/2011

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Very easy install took less than an hour to install hitch and wiring 23200

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- 118425

ratingratingratingratingrating by: Ryan K01/27/2011

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The item arrived quickly and as promised, but it is not designed the best - the wire that runs between the tail lights should have been between 6-12" longer. The fit was just too tight and I was not able to run it exactly where I wanted due to the short length. That being said, I did get it hooked up quickly (20 minutes) and the instructions and video tutorial were very useful. 6213

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- 118425

ratingratingratingratingrating by: Larry06/13/2011

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The product quality is excellent, BUT the 2011 model year JEEP GC has changed. The wiring harness is to short! I had to add additonal wiring by cutting and splicing additional length. This product needs to be upgraded to fit 2011 Jeep Grand Cherokee.16837

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Comments

To get enough length, all you need to do is cut the zip-tie that holds the two halves together. Peel the bonded wire apart till you get enough length, then you can tie them back with a new zip-tie.

Patrick B - 11/21/2012

454



Ask the Experts about this Tow Ready Custom Fit Vehicle Wiring
Expert Answers about T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 118425                                            Do you have a question about this Custom Fit Vehicle Wiring?


  • Will T-One Harness for a Jeep Grand Cherokee Affect the Vehicle On-Board Diagnostics
  • The custom T-One harness for the Grand Cherokee does not affect the vehicle on-board diagnostics. The harness pulls power for the trailer lights from the same source that provides power for the vehicle tail lights. The system will still monitor the Jeep tail lights for burned bulbs or shorts.
    view full answer...

  • Brake Controller Wiring on a 2007 Jeep Grand Cherokee
  • If your Grand Cherokee tow package included a 7-Way trailer connector at the rear bumper, all you will need is a brake controller to complete the setup. Brake controllers are universal, so any brake controller will work, including the Tekonsha Prodigy, part # 90185. The brake controller will have four wires: Red, Black, Blue and White. As usual, White is ground and should be connected to any suitable ground point. Red is the stop light wire. This tells the brake controller when you are applyi
    view full answer...

  • Wiring Harness and Mount for a 2007 Jeep Grand Cherokee
  • This item works for the Jeep Grand Cherokee (except SRT8) without any dealer involvement. The T-One harness just plugs in line with your existing taillights and then routes down under the bumper to a good location near the hitch. See the installation video link below. The only thing you may need is a mounting bracket to keep the trailer connector up out of the way. I have provided links to a magnetic 4 pole mount and to two brackets; one can be used as a screw on mount and the second can be used
    view full answer...

  • Troubleshooting Lights that Do Not Work on 2007 Jeep Grand Cherokee with Trailer Connected
  • The first thing I would do is check out the trailer wiring and make sure that everything is wired properly and there are no shorted, broken, pinched or frayed wires and that all of the ground connections on the trailer are securely attached. Be sure to check the ground condition where the lights are attached to the brackets and where the brackets are attached to the trailer frame. If the trailer functions properly then there may be too many lights on the trailer for your Jeep Grand Cherokee w
    view full answer...

  • Which Powered Converter Vehicle Wiring Harness Can Be Used on a 2007 Jeep Grand Cherokee
  • For your 2007 Jeep Grand Cherokee, there is a possibility that the camper with all the lights could pull too much electricity for the 118425 custom wiring and your vehicles electrical system. Instead, I recommend using the Upgraded Circuit Protected Modulite with 4 Pole Harness and Hardwire Kit - Includes Testers, # 119176KIT. With this harness, you will have a circuit protected powered modulite that has a connection directly to the vehicles battery. This will allow enough power for the camp
    view full answer...

  • Aftermarket Trailer Hitch and Trailer Wiring Installation on a 2007 Jeep Grand Cherokee
  • The trailer hitches we sell for your 2007 Jeep Grand Cherokee do not require that the rear bumper be removed but the rear fascia does need to be detached so it can be moved out of the way to make room for hitch installation. If your Grand Cherokee has the factory tow hook, it must be permanently removed. To do so, you would have to temporarily remove the rear fascia and a plastic bumper support. The fascia and support get reinstalled near the end of the installation. I have included a link t
    view full answer...

  • Is There A Video Of The Installation Of A Trailer Hitch And Wiring On A 2007 Jeep Grand Cherokee
  • I have a video of the Draw-Tite Class III Hitch, # 75338, and the Hidden Hitch Class III Hitch, # 87752, being installed on a 2007 Jeep Grand Cherokee. The video shows it being installed on a Jeep without a tow hook, so if your Jeep has a tow hook it would have to be permanently removed which adds 20 to 90 minutes to the installation time. I also have a video of the Tow Ready T-One Wiring Harness, # 118425, being installed on a 2007 Jeep Laredo. Even though the vehicle is different, the
    view full answer...

  • How Does Tow Ready T-Connector Harness 118425 Install on a 2009 Jeep Grand Cherokee
  • This harness connects to the connectors on the back side of the tail lights. I have added a link to the instructions below as well as a video of this kit being installed on a 2007 model. They should give you a pretty clear idea as to how the harness installs.
    view full answer...

  • Is there a Quick Connector Trailer Wiring Harness Available for a 2011 Jeep Grand Cherokee
  • The T-One wiring kit, item # 118425, is a quick T-connector kit that installs inline with the vehicle taillight wiring and does not require splicing into the vehicle factory wiring. This connector will provide a 4-Way trailer connector at the rear of your 2011 Jeep Grand Cherokee. The hardest part about installing this wiring harness is accessing the wiring at the rear of the vehicle taillights. We have a video of the # 118425 Harness being installed on a 2007 model which will be very similar
    view full answer...

  • Does a Factory Installed 7-Way on a 2007 Jeep Grand Cherokee Require a Fuse or Relay to Activate
  • If your 2007 Jeep Grand Cherokee came with a factory installed 7-Way wiring harness, it probably does have the 12 volt wire already attached and ready for use. You can check the pin on the 7-Way in the 1 oclock position if facing the connector. Use a circuit tester like # 3808 to check for voltage. On some vehicles you will need to have the key on or the vehicle started. If you find that it does not show voltage, it could be that there is a fuse or relay that needs to be installed. You will n
    view full answer...

  • How to Make the Tow Ready Trailer Wiring Harness Long Enough to be Used on 2012 Jeep Grand Cherokee
  • There is a pretty simple fix for the issue people have where it seems like the harness is too short. What you will need to do is cut the zip-tie that holds the left and right harnesses together and then pull the wires apart as they are bonded together. This will give you plenty of wire to make it to both taillights of your 2012 Jeep Grand Cherokee. If you check out some of the other reviews you can see that some people had success with this method too.
    view full answer...


Jeep Grand Cherokee Accessories


Info for this part was:


Written by:
Lindsey

Edited by:
Leah

Vehicle fit info:
Mary

Installed by:
Joe

Video by:
Zack

Expert Research
Bob

Expert Research
Mike H

Expert Research
Jeff

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