T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
(201 reviews)
Price: $44.16
In Stock
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
Item # 118301
Retail:$55.96
Our Price: $44.16
You Save: 21%
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- All Info
- Reviews (201)
- Q & A (0)
- Photos
Tekonsha Custom Fit Vehicle Wiring - 118301
- Custom Fit
- 4 Flat
- Trailer Hitch Wiring
- Tekonsha
- Converter
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 - no cutting, splicing or tapping required. Circuit-protected converter guards against shorts.
Features:
- Provides a 4-way flat trailer connector at the back of your vehicle 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 beneath the truck bed, on the driver's side
- Plug in T-connector
- Includes circuit-protected tail light converter to ensure that your vehicle's wiring matches that of your trailer
- Provides protection against electrical shorts and overloads
- Constructed of 16-gauge bonded wire
- Comes with dust cap for 4-way flat connector
Specs:
- Maximum amperage:
- Stop/turn lights: 2.1 amps per circuit
- Tail lights: 5 amps per circuit
- 1-Year limited warranty
Installation
This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located beneath the truck bed, near the driver's-side frame rail.
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.
Circuit-Protected Tail Light Converter
A tail light converter 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. The tail light converter combines 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.
This converter safeguards itself and your vehicle against possible electrical shorts and overloads with integrated short circuit protection. Just install the connector as indicated and rest assured that the wiring system of your vehicle will remain feedback-free.
118301 Tow Ready T-1 T-Connector - 4 Wire
Installation Details
This Product Fits The Following Vehicles
- 2004 - 2012 GMC Canyon
- 2004 - 2012 GMC Canyon without factory 7-Way
- 2004 - 2012 Chevrolet Colorado
- 2004 - 2012 Chevrolet Colorado without factory 7-Way
- 2006 - 2008 Isuzu I-Series Pickup
- 2006 - 2008 Isuzu I-Series Pickup
California residents: click here
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
- Did not fit
- Wrong item was ordered
Customer Reviews
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 118301
Average Customer Rating: 4.9 out of 5 stars (201 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 - no cutting, splicing or tapping required. Circuit-protected converter guards against shorts.by: Bruce 04/08/2024
Worked as advertised. Saved me a lot of trouble. My only issue was that it sat from Friday to Wednesday before being shipped. Don't understand why. The item was in stock and prepared for shipment.
by: David03/21/2016
2008 GMC Canyon
Wow! I ordered my hitch and wiring harness on 3/16/16 at 9:39 AM and it was delivered via free shipping on 3/17/16 in the early afternoon. I have it installed and ready to use and it is only 4:30. Great service, great product, clear instruction and acceptable pricing.
Thank You!
by: Randy08/29/2012
2012 Chevrolet Colorado
Trailer hitch fit great on truck. Directions that came with it worked well. Took about 45 minutes to install the hitch and wire harness by myself on my 2012 Chevy Colorado.
by: Larry E03/14/2014
Awesome trailer hitch but took more than an hour. But still awesome!
by: Duane03/04/2024
Paula was very helpful, thanks.
by: Albert 10/30/2023
Great product! It is working as it should, no complaints.
by: Vincent 01/30/2023
The t-connector was delivered promptly, installed easily, and worked well. I must also mention that etrailer customer support is fantastic! Ashley particularly helped work through a few difficulties with my truck.
by: James C.06/02/2019
2007 Chevrolet Colorado
Tekonsha towing "Plug in T" wiring harness for a 2007 Chevy Colorado....The product was excellent, just as described. It literally did, in fact, install in about 5-10 minutes. Your website was extremely helpful regarding the product. The installment videos are what sold me. The only reason I didn't give a 5 star rating was the 7 day delivery. Other products I buy online deliver in 3-4 days. Product Great, Delivery... could be faster.
by: Eddie C04/26/2015
GMC Canyon
We received the EZ to install plus in trailer wiring kit for our GMC Canyon very quickly. It sure beats splicing the wires to a standard kit found at retail stores. Great selection.
Eddie C.
4/29/2016
The wiring still works flawlessly. Ill be buying both a hitch and wiring set from etrailer this spring for my subaru crosstrek
by: George S08/30/2015
2005 Chevrolet Colorado
I wasted two days and was at my wits end trying to figure why the Dealer installed wire harness did not work, after spending Two minutes on your web site and watched your videos problem was solved, the dealer installed the wrong harness, I ordered this harness and you shipped it the next morning.
Excellent service, even greater videos, and top rated web site and the exact products.
I rate you guys 10 +++++
George S.
12/3/2016
Working out great after more than a year
by: Ole J.05/04/2017
2008 Chevrolet Colorado
The trailer light harness fit perfectly and plugged right in, and had all my utility trailer lights working properly.
Ole J.
5/4/2018
No shorts, no breakage, continued good connection. An occasional squirt of WD-40 is a good idea.
by: Kurt 04/17/2023
2006 Chevrolet Colorado
The part fit as it should. And was delivered a day early. I am also currently waiting for another package from e trailers
by: Dennis M06/15/2019
Durable, well-built product at a reasonable price. Very nice hitch and wiring harness.
Dennis C.
6/16/2020
Product was an easy plug and play and just like new after one of use.
by: Ross04/03/2018
2005 Chevrolet Colorado
An easy plug and play type trailer wiring harness.
Ross V.
4/3/2019
Quick and easy to install and worked great on my 2005 Colorado. Thanks.
by: Marty07/28/2021
2005 Chevrolet Colorado
Everything worked perfectly. Would definitely order from you guys again. Very fast shipping as well.
by: Tim C09/09/2017
2006 Chevrolet Colorado
It was great! After a year of frequent use taking on a salt water the wiring harness works great!! As a former Electronics Technician my only recommendation would be to highlight the importance of a good ground connection. Because many trailers are typically constructed of solid metal this is not a problem. But where modifications are made using wood and other non-ferrous metals a bad ground will interrupt the system.
by: RD04/17/2019
2009 Chevrolet Colorado
Product came on time and in good condition. Installation is easy for DIY and I had no problem. I own a 2009 Chevy colorado and the unit works perfectly. I rented a trailer from home Depot and the tail lights worked as designed. I got this unit because I didn't want to do any wire splicing or soldering. I only used a drill for a screw to attach the unit to the truck frame with also some RTV and a few zip ties. I would buy again if need be.
by: Easy as pie...03/17/2017
I'm not certain how easy pie is (I'm to busy making my truck cooler, but this must be as easy or easier.
You'll lay down behind your truck, and you'll luck at the back of the rear bumper. There you will see a big flat pin connector and you'll unclip it and then using strategic reasoning skills you'll plug the correct end of the new fancy deal from etrailer into those two spots you just created.
Then you'll just need to get a self tapping screw and mount the ground to something metal, preferably not the color of the truck (that's the bed, don't screw it into that).
Then you're freaking done and you can tow stuff legally!
by: Surfszup08/22/2012
2005 GMC Canyon
The product was exactly as pictured. It installed very easily in approximately five minutes. More time passed waiting for my cordless drill to charge than the actual installation. The self tapping screw for the ground wire was great. The installation literally was unhooking the existing wire connectors, putting the T connector between them, and then running the wire towards the ball hitch.
I have yet to hook anything to the connector at this time to enure all is functioning correctly though will tow a trailer in another week to test it.
by: Ben 06/18/2021
works great for my 06 colorado! simple plug and play. FYI does not have a fuse. if you have a trailer short it will just fry the unit. make sure your pluging into good trailers. i fried one because the running lights had a direct short to ground.
by: Jerry H.04/18/2015
2011 Chevrolet Colorado
I recently purchased a Hidden hitch and wiring harness for my 2011 Chevy Colorado. With the install videos online, installation couldn't have been more straight forward. Shipping was fast and pricing was very good! I highly recommend etrailer!
by: Jerry 04/25/2020
I had a dead short in the wiring. I would turn on my headlights and the trailer lights quit working. I pulled this out of the box it looked a little different. I then went out to the truck unplugged the original from the truck and plugged this in. It worked prefect.
by: bill03/22/2013
2005 GMC Canyon
The wiring harness that I ordered from E Trailer came faster then I expected!
The only thing faster was installing it!!
The video I watched on the E Trailer web site showed me exactly how it needed to be installed. Again it was on the money.
Using my new motorcycle trailer is now an easy plug and haul away. Couldn't be easier! Thanks E Trailer.
by: Walt Rice08/19/2014
2010 Chevrolet Colorado
Product that I ordered was not in stock and they informed me of an item equal to what I order and gave me the option to cancel first order and order the in stock item. This was all done within the first couple days of placing original order.
I have to say that is EXCELLENT CUSTOMER SERVICE and I am very satisfied with the replacement item that was as they described. I ordered a quick connect trailer harness for my Chevy Colorado and the instruction said it would take roughly 1/2 hour to install, (FALSE after watching etrailer install video it only took 10 minutes including reading the instructions, Another fine example of good customer service)
Very pleased and will recommend etrailer to anyone needing their products.
25
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Show More Reviews
See what our Experts say about this Tekonsha Custom Fit Vehicle Wiring
- Trailer Wiring Harness Recommendation for 2004 GMC CanyonThe correct 4-way trailer wiring harness you need for your 2004 GMC Canyon is the part # 118301 which is a confirmed fit. I attached an install video for this harness for you to check out as well on a 2004 Canyon.
view full answer... - Availability of a 4-Way Trailer Wiring Harness with Mounting Bracket for a 2011 Chevy ColoradoIf your 2011 Chevy Colorado has a 4-Way flat, or, you install a 4-Way flat like # 118301 that you have referenced, you may be able to use 4 Pole Knock-Out Adapter, # HM47605. I went out to the warehouse to measure this part and it is 1-5/8 inches in diameter at the largest point which would be a little larger than a quarter. You would just need to route the 4-Way harness through the back of the plug, connect it to this adapter, and then mount the adapter into the hole. You will just need...
view full answer... - Parts Needed Tow a Trailer with a 2011 Chevrolet ColoradoFor a fully functional 4-Way and 7-Way combined connector on a 2011 Chevrolet Colorado without the tow package you would need to start off with the Tekonsha T-One # 118301. This gives you the basic lighting functions for your trailer and allows you to install the Universal Wiring Kit # ETBC7. The ETBC7 kit comes with everything that you need for a fully functioning 4-Way and 7-Way combined connector. To complete your towing setup you also need a trailer hitch and a ball mount/hitch ball....
view full answer... - Installing a Brake Controller in 2004 Chevy ColoradoA fuse is not going to take the place of circuit breakers when installing a brake controller on your 2004 Chevy Colorado, you would need to use the breakers included with the Universal Installation Kit for Trailer Brake Controller # ETBC7. You will also need 4-way Wiring Harness # 118301 for your Colorado if one is not installed. As for the brake controller itself, I strongly recommend the Prodigy P3 # 90195; it is the most popular model we carry due to its effectiveness and ease of use....
view full answer... - Trailer Wiring Harness Recommendation for a 2007 Chevy ColoradoActually to install a 4-way in your 2007 Chevy Colorado all you would need is the part # 118301 that plugs right in to factory wiring on your truck. There would be no need to hardwire anything at all. Also, since your truck has separate turn signals from brake lights you couldn't just hardwire a 4-way to the wiring anyway so the # 118301 would be your best option. I attached an install video for you to check out as well.
view full answer... - Where to Connect the Hopkins Custom Fit Vehicle Wiring Plugs on a 2008 Chevy ColoradoThere are two places the Hopkins Custom Fit Vehicle Wiring, # 41165, will plug into your 2008 Chevy Colorado. Usually, you will find the trucks taillight harness under the truck, behind the rear bumper, near the drivers side frame rail. The Hoppy, has one male plug and one female plug. After unplugging the vehicles harness from the location mentioned above, you will plug the corresponding plugs on the Hoppy in line with the vehicles harness. You then mount the 4-pole at the rear of the...
view full answer... - Trailer Wiring Harness for 2008 Chevy Colorado that Keeps Truck and Trailer Turn Signals in UnisonUsually a tow vehicle signal flash and a trailer signal flash are just about in unison so having them that far off is strange. If it were me I would use the Tekonsha harness # 118301 for the 2008 Chevy Colorado. It is very highly rated by customers and we also hear about fewer issues with the Tekonsha brand compared to other brands. I have linked a video showing how it installs but it installs the same way as the one you have.
view full answer... - Trailer Connector Recommendation 2008 GMC Canyon for Just Taillight FunctionsFor your 2008 GMC Canyon you will need a 4-way trailer connector to provide you with the turn signals and stoplight functions like the part # 118301 which has been confirmed as a fit. You referenced the part # 30717 which would then adapt the 4-way to a 7-way for just taillights if needed. The extra wires wouldn't be used.
view full answer... - Installing a 7-Way Trailer Connector on a 2005 Chevrolet ColoradoIt sounds like you're trying to add a 7-way trailer connector on your 2005 Chevrolet Colorado. We certainly have the parts you need but depending on what you have as to which route you need to go. If your truck has the tow package and is equipped with a standard round connector to plug trailer wiring into you can use part # 74682 which includes a 7-way, 4-way, and a mounting bracket. This gives you the fully functioning 7-way and 4-way. If your truck isn't equipped with the standard...
view full answer... - Does Adapter 4 Pole to 7 Pole Work on 2012 Chevy ColoradoYes, the Adapter 4 Pole to 7 Pole Vehicle End Trailer Connector # 30717 will work on your 2012 Chevrolet Colorado. This is a universal part so it will work on any vehicle. You will need to have a 4-way connector on your Colorado as well to plug into this adapter, so if you don't have one the correct part for that is the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118301. I have added links to video reviews for you to check out as well.
view full answer... - Troubleshooting Trailer Blinker that Stops Working when Brakes AppliedFirst thing you should do at this point is test the 4-way of the wiring harness with a circuit tester part # PTW2993 for voltage on all of the right pins when the taillight signals are being applied. Just like in the video I attached. If the voltage checks out there but the trailer lights still don't function right then the problem is on the trailer wiring. That would mean that problem is either due to a ground issue or a short issue. Make sure that the trailer side connector are clean...
view full answer... - Plug-In 4-Way Harness For 2006 Chevrolet Colorado PickupFor your 2006 Chevrolet Colorado pickup I recommend the Tow-Ready Custom Fit Vehicle Wiring, part # 118301. This plugs into your Chevrolet Colorado's wiring harness, which is located beneath the truck bed, near the driver's-side frame rail. It requires no splicing or cutting of wires and connects quickly and easily. To keep the 4-way secure and safe I recommend the mounting bracket part # 18144. To prevent moisture and corrosion when making any electrical connections it is always recommended...
view full answer... - What is the Difference Between Plug-N-Tow Wiring Harness 31165 and T-One Wiring Harness 118301The two wiring harnesses we offer for the Colorado are essentially the same thing just by two different manufacturers. By carrying both manufacturers we can ensure we at least always have one in stock.
view full answer... - Troubleshooting Wiring on a Trailer Towed by a 2005 GMC CanyonThat definitely sounds like a weak ground that is causing your problem. You could check the condition of your hitch ball. Sometimes a rusty ball will affect how everything grounds on the trailer because the trailer also grounds through the ball to the frame of the vehicle. If the trailer has any type of folding coupler or dump function you might need to run a jumper wire to connect the two sections of the trailer. It sounds like you installed the Tow Ready Wiring Harness # 118301. I would...
view full answer... - How to Find Wiring Harness Connection Point on 2012 Chevrolet Colorado If your 2012 Chevy Colorado has a factory towing package it will have a round connection point behind the rear bumper. The connection point is a round plug attached to wiring that runs through the frame rail. The plug has a cap on it that has a locking tab on it that needs to be pressed down to remove the cap. I recommend the Reese wiring harness for the 2012 Chevy Colorado part # 74682 if you have this connector because it includes both a 7-way connection and 4-pole flat connector. I have...
view full answer... - Trailer Hitch Recommendation for a 2012 Chevy ColordaoI recommend going with the Draw-Tite Max-Frame Trailer Hitch Receiver # 75607 hands down for your 2012 Chevy Colorado. I like this option over the Curt # 13252 because it has a hidden crosstube which not only looks better, but it also means you'll have better ground clearance. Attached is an installation video as well as a photo showing what it will look like once installed. Typically when a trailer hitch is installed on a pickup it will be used for towing. If this is what you're planning...
view full answer...
- Parts Needed To Install Redarc Tow-Pro Liberty Trailer Brake Controller On a 2008 Chevrolet ColoradoYes, you will be able to use the Redarc Tow-Pro Liberty Brake Controller # RED24FR with the Universal Wiring Harness # RED69FR on your 2008 Chevrolet Colorado. If your Colorado came with the factory tow package the wiring to splice in a brake controller will be in the drivers compartment. If your Colorado did not include the factory tow package you will also need the Universal Installation Kit # ETBC7 and a 4-Way harness # 118301.
view full answer... - Recommended Trailer Brake Controller and Installation Kit for 2010 Chevrolet Colorado If your 2010 Chevrolet Colorado Z71 has a factory-installed 7-way trailer connector then the wiring needed to install a brake controller will already be there under the dash. I like the Prodigy P2 # 90885 proportional controller for its proven reliability and ease of set-up. This is an excellent choice for all applications. If you want the very best, go for the P3 # 90195 which includes additional features like a big display and the ability to store trailer settings. If the Colorado does...
view full answer... - Troubleshooting Tekonsha T-One Connector 118301 On 2005 Chevrolet Colorado Not Having PowerI am sorry to hear that you are having issues getting a functioning 4-way connector harness on your 2005 Chevrolet Colorado. I recommend using a circuit tester like # PTW2993 to check the wires going into the the module for power. If these wires have power but you have no power to the 4-way connector wires the module is bad and the harness will need to be replaced. If you do not have power to these wires then you will need to remove the harness and check the connectors on both the harness...
view full answer... - Parts Needed to Install 7-Way/4-Way and Redarc Tow Pro Elite Brake Controller 2008 Chevy ColoradoTo install the Redarc Tow Pro Elite part # RED44FR in your 2008 Chevy Colorado that does not have any trailer wiring you'd first need to start with the 4-way kit part # 118301 and then convert it to a 7-way/4-way with the part # ETBC7 which comes with everything needed to install the brake controller and provide you with both a 4-way and a 7-way. I attached install videos for both of these for you to check out as well.
view full answer... - What is the Correct Trailer Wiring Harness for a 2007 Chevy ColoradoEither wiring harness for the 2007 Chevy Colorado, # 118301 or # 41165, will work fine on the truck. They are different because they are made by different companies. The converter in # 118301 requires a separate ground whereas the other harness # 41165 does not and just uses the ground in the vehicle wiring where it connects. The harness you have will work just fine for you.
view full answer... - Troubleshooting Tow Ready Trailer Wiring Harness # 118304 Installation in Toyota SiennaThank you for your recent purchase. The two plug-and-play trailer wiring harnesses you have, Tow Ready part # 118304 for the Toyota Sienna, and # 118301 for GMC/Chevy and Isuzu pickups, both install inline with the pre-wired T-connectors to the vehicles' tail light wiring. The problem with erratic light functions that you describe is most often related to a grounding issue. You can begin your troubleshooting by confirming that the white ground wire with ring terminal is firmly secured...
view full answer... - Recommended Brake Controller And Wiring For 2004 Chevrolet ColoradoThe Tekonsha Voyager Brake Controller, part # 39510 will work well with your 2004 Colorado. The Voyager is designed for electric brakes only on a trailer with up to 4-axles. This is a proportional brake controller which means it applies the brakes on the trailer with the same intensity as the brakes in the towing vehicle when applied. In my opinion, I recommend the P2 Brake Controller, part # 90885. This is also a proportional brake controller that has a bigger mounting range vertically....
view full answer... - How to Install a Brake Controller on a 2012 Chevrolet Colorado If your 2012 Chevrolet Colorado came with a factory 7-way then the blunt cut wires you need to install a brake controller will be already ran under the dash near the emergency brake pedal (see video of black Colorado). However, if your Colorado did not come with a factory 7-way then you will need to run the brake controller wires yourself. In order to run the wires yourself you will want to use our Universal Installation Kit for Trailer Brake Controllers part # ETBC7. This kit will require...
view full answer...
Do you have a question about this Custom Fit Vehicle Wiring?
Info for this part was:
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Installed by:
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James C.
6/3/2020
Product still working fine after 1 year. Reliable.