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Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring. Powered ModuLite reduces strain on wiring system.
Features:
Specs:
Installation
This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located inside your rear cargo area, behind the tail lights on both the driver's side and passenger's side. You will need to remove some interior paneling 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 and insert the provided fuse.
Once installation is complete, the 4-way flat connector will be stowed in 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 ModuLite power module is built into this T-One connector. 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 your trailer. This power module functions as a tail light converter to combine 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.
With a ModuLite, your trailer's lights will be powered without overloading your vehicle's electrical system. Because the module draws power directly from your car's battery and bypasses the electrical routes that are used by a basic wiring harness, there is virtually no draw on your tail light circuits.
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Average Customer Rating: 4.6 out of 5 stars (65 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 existing wiring. Powered ModuLite reduces strain on wiring system.The kit was confirmed for my vehicle by the sales rep. I had the bulk of the kit installed. The final step of installation is the power wire to the battery. The power wire is several feet too short. The customer service rep suggested i go to Home Depot to purchase additional materials needed to complete the installation. What?! I opted to uninstall and wait 3 days for additional wire from etrailer. I'm certain this is not the first time. Please correct your kit or warn customers that it is incomplete prior to purchase. VERY disappointed.
Wasn't sure what to get, customer service was excellent helping me choose. The whole kit worked great and had everything I needed. Awesome videos of how to install in my 2012 Sprinter. I always recommend e-trailer as first choice to other colleagues and friends. Thanks guys!
I installed it tested and it works great
The positive black wire is a couple fit short
But a previously ordered 6 ft of 16-1-1 cable
It's thinner than in the harness but it can be used, so I added
The installer on video had enough cable because it's a shorter Van.
You may not see to much on pictures because
I fished the wire to the passenger side inside around door frame
On both tail lights on pictures is no wires !
they All inside
Would recommend this to a friend
This product is still working great after the first year and was easy to install.
Everything fit my 2010 Sprinter and worked perfect. The only issue I had was the wire that goes to the battery wasn't long enough so I had to supplement with some wire I had.
Solid build as I would expect from DrawTite. Installation was easy. Needed to buy additional bolts ($95) because Sprinter Factory bolts were removed by previous owner.
Bought for my 2008 Dodge Sprinter LWB van and was easy to install by following directions to the letter. Works as it should and am perfectly happy as it was a good deal price-wise as well. Bought a hitch here also and would give it the same review. Thanks.
Dudley P.
5/30/2021
Still working great and have had absolutely no problems. Thanks again for a product that was easy to install and does the job it was designed to do well.
The product does not work as stated. It was easy to instal, it did connect to wiring harness and there was enough wire to do the job. But the power pack that came with it doesn't have enough power to run all the lights causing the van to constantly thinks the lights are out. Also the light don't work half of the time because of this. It has been worked on many time and the problem has not be fixed.
Mike L.
7/7/2018
There are a couple of possible causes for the problem youre experiencing. Some vehicles have bulb-out sensors that cause the taillights on the vehicle and trailer to hyperflash when its sensed that a bulb is out. If the trailer has LED lamps that only draw a fraction of the current of incandescents, the sensor reads the low power draw as a bulb out and the trailer lamps wont work properly. Another possibility is that the converter is overloaded as you suggested. If the trailer has more lamps than the normal stop/turn/running lamp and a few marker lamps, and the bulbs are incandescent, the draw could be exceeding the 5 amp/circuit stop and turn and 7.5 amp taillight circuit capacity of the converter. Ive linked to a help article that explains how to troubleshoot a trailer wiring harness.
Helpful Links
The part was broken. Once we got a chance to get it installed and found out it was broken it was to late to return it with free shipping. Now I must pay to return it under the warranty.
This is on a custom kit to add trailer wiring to a Sprinter van.
The kit had everything I needed to do the job. I might have had to supply a few of my own zipties but I don't recall at this point.
Easy to install for an experienced mechanic with some electrical knowledge. Might be borderline difficult for average do-it-yourselfers. The final result was perfect.
One thing I had to cover on my own is this kit requires a power wire leading all the way to the battery. That wire a about 3 feet short. I spliced in an extension and all was good but....... In the manufacturers defense our Sprinter is a long and tall version so it would have the longest run to the battery of all these models. But still the kit is said to fit all and 3-4 feet more wire is only pennies.
Used this trailer wire loom on my 2007 Sprinter van. Very complete kit, had plenty of wire length and all the connectors fit where they were supposed to. Saved me many hours of measuring, splicing, crimping, etc. Be sure to connect the red power wire, on mine I ran a thin-wall plastic tube (drip irrigation tubing works great) as a conduit up to near where the auxiliary frame wiring come through the floor under the drivers seat and connected 12AWG wire to a 12V source.
This product seems to be well made. Being fairly competent I installed it myself in about 6 hours and found the video on your website helpful. Regarding Video: I found that; feeding the trailer connection plug wire down under the bumper cover tricky and required loosening the cover further; The running of power cable underneath worked easiest(I opted to drill a small hole in the upper side of the battery box.) and that it might not be long enough to run up and down the inside.
Also for me removing the taillights with out braking the plastic side pins/clips difficult having not had to do it before. I would recommend watching other installation videos [online] for more tips/ideas on ways to run wires etc..
Plugged right in to my 2011 170 sprinter. You just have to find a power source and the rest is plug to plug. Perfect for those of us without factory trailer wiring. It was tough to fish from drivers side to passenger side and I found it easier to cut the plug off and resplice once down the passenger side pillar.
My hitch and wiring harnesses arrived sooner than I expected in generally good shape. the hitch was chipped around the receiver which will happen anyway but you always want new stuff you buy to be perfect. I installed the hitch already and don't expect anything out of the ordinary on the wiring. I purchased wiring and the brake controller earlier on and all went well so I assume it will on my van as well.
Everything fit my sprinter van perfectly. I tend to be skeptical of things I order, but this product exceeded all expectations. Quality appears to be great, and the instructions were very clear, not at all like the instructions you often get with products these days that were obviously written by someone for whom English is clearly not their native language. I found an excellent etrailer youtube video that showed an alternate way to install the wiring which turned out to be a better option for my situation because my sprinter van is already fitted out and it would have been a problem to try to run the wires overhead and interior the way the written instructions suggested.
The harness was fairly easy to work with. I took one additional step to keep the flat 4 pin outside the van. I did this by removing the black rubber rear entry threshold and drilling a hole thru the metal floor underneath. I ran the wiring through the hole and replaced the threshold and bypassed shutting the doors on wires when using a trailer.
easy install , just watch etrailer video and they walk you through it . I installed the 4 way trailer kit on a 2010 m.b. sprinter 2500 and there was everything you needed in the kit . save yourself money and do it yourself .
The kit had everything needed. I watched the excellent installation video on line several times. This made the process stress-free.
The product arrived quickly and in good condition.
The components are of high quality. They fit exactly right, clicking into position as advertised.
The only minor quibble: the black wire that goes to the battery was about 18 inches too short. I have the longest version of a Sprinter van, so that might have been the problem. No worries. I spliced in some additional wire, problem solved.
Easy to install and easy directions to follow. Harness has been in my sprinter van for over a year now and works great still.
Everything was great but the 12g wire going from back of van to the battery was about 6' short. No biggy but...
Jenny N.
12/3/2021
I recommend viewing the video that we have on a 2011 Mercedes Sprinter starting at mark 8:08 on how we ran the power wire to the battery without needing extra wire. We also have an helpful FAQ on running the power wire.
Good Product.
Arrived on date promissed/
Very easy to install.
Only thing is the power cable is not long enough for a 170 in wheelbase Sprinter if you want to run the wiring inside. Need to buy extension.
This trailer wiring harness for my 2007 Dodge Sprinter works perfectly! It was super easy to install, and works completely without any issues. I'm so glad I ordered this one!
Hitch installation was super easy. Everything fit perfect and if you follow the instructions it is almost effortless. I have not installed the T-one wiring yet as that looks more involved and I haven't had time. But the hitch is great.
Simple and easy to connect leaves the factory wires untouched.
Worked well to make a hitch system where there was none before.
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Ruel
11/6/2023
I installed this kit about 2 yrs ago. It has been great, forgot all about it! E-Trailers videos and instructions were very good. I have a 170 base 2013 Sprinter.