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  1. Custom Fit Vehicle Wiring
  2. Chevrolet
  3. Colorado
  4. 2007
  5. Tekonsha
FITS 2007 Chevrolet Colorado
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
Tekonsha

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

Part Number: 118301
In Stock
$40.84
Retail:$55.96
You Save: 27%
Custom Fit Vehicle Wiring
Confirmed to Fit
2007 Chevrolet Colorado

without factory 7-Way

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Call etrailer.com at 1-800-940-8924 for expert service. We are your Chevrolet custom fit vehicle wiring experts, and offer a great price. etrailer.com carries a complete line of Tekonsha products for your Chevrolet Colorado 2007. T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part 118301 from Tekonsha can be ordered online at etrailer.com. Complete custom fit vehicle wiring installation instructions and technical support.
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  • Reviews (207)
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2007 Chevrolet Colorado - T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Highlights

  • Easy plug-and-play installation: Connects seamlessly into your vehicle's wiring.
  • Custom fit for Chevy Colorado: Specifically designed for select models 2004-2012.
  • Circuit protection: Guards against electrical shorts and overloads.
  • 4-way flat trailer connector: Powers signal lights for safe towing.
  • No cutting or splicing required: Maintains integrity of factory wiring.
  • Versatile compatibility: Fits models without factory-installed 7-way.

Features to know about

Stress-Free Installation: Custom Wiring Harness Design

Say goodbye to the hassle of cutting, splicing, or tapping into your vehicle's wiring. This Tekonsha T-One Vehicle Wiring Harness is designed to effortlessly plug directly into your existing system. Located beneath the truck bed on the driver’s side, the T-connector quickly establishes a secure connection, saving you time and effort in getting your trailer ready for the road.

Reliable Signal Transmission: Circuit-Protected Converter

Worried about electrical shorts or overloads? The built-in circuit-protected tail light converter ensures your vehicle and trailer's lights communicate perfectly. By combining brake and turn signals on one wire, it seamlessly bridges the gap between different wiring systems while safeguarding against potential electrical mishaps. Enjoy peace of mind knowing your lights will signal properly every time.

Versatile Connectivity Options: Compatible with Various Adapters

Need flexibility in your trailer setups? This wiring harness is compatible with 5-pole, 6-pole, and 7-pole adapters (sold separately), broadening your options for different trailer types. Whether you're towing a small utility trailer or a larger setup, this harness adapts to your needs, making it a true all-rounder for various towing situations.

Durable and Weather-Resistant: 16-Gauge Bonded Wire

Built to withstand the elements, the 16-gauge bonded wire construction of this harness ensures durability and reliable performance over time. The included dust cap helps protect your connection from dirt and moisture, so you can tow with confidence in any weather conditions.

Quick Troubleshooting and Maintenance: Easy Access Connectors

Never get stuck trying to figure out wiring issues on the road. This harness allows for quick and easy access to all connectors and electrical systems. With it installed, you will easily locate any issues without extensive disassembly, making maintenance a breeze and keeping you on the move.

Ultimate Custom Fit: Designed Specifically for Your Vehicle

No more one-size-fits-all solutions. This wiring harness is designed to be a perfect match for your vehicle, ensuring an optimal fit and reliable operation from the get-go. Ensure your towing setup is as seamless and integrated as possible for a variety of models without compromising on quality or ease of use.

Specs

Electrical Specs

  • Maximum amperage:
    • Stop/turn lights: 2.1 amps per circuit
    • Tail lights: 5 amps per circuit

Warranty

  • 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.

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 118301 Installation instructions

California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.9

207 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:
2008 ChevroletColorado

Made well... Very easy to install!



by:

Fast delivery! Great product, just as advertised.



by:

Easy to install. Fast shipping.



by:
2007ChevroletColorado

Quality product....easy to follow instructions



by:
2005 GMC Canyon

too easy too install!



by:

Easy to install



by:

Excellent product...fit well...installed easily.



by:

Works as advertised. took about 10 minutes to install.



by:
2004 ChevroletColorado

Insalled in minutes...workes like a champ



by:
2012 ChevroletColorado

No problems. Movie really made it easy to install.



by:
2009 ChevroletColorado

Very easy installation on a 2009 Colorado.



by:

verry happy with your service,and product will buy moor from you.



by:

wiring.fit like a factory inst. 10 min most.



by:
2012 ChevroletColorado

Just installed don't know if it works yet



by:

Product arrived earlier than expected. Would do business with again. Thank you!



by:

Easy installationGreat product and was a breeze to install.



by:
2012 ChevroletColorado

Product worked as expected. Factory fit to vehicle.



by:
2011 ChevroletColorado

no problems.. have not connected to trailer yet.



by:
2004 ChevroletColorado

I received my part in great shape and before I thought it would be here. Great work!



by:

Product was exactly what I ordered. Service was extremely fast and received item only couple days after ordering.



by:
2004 ChevroletColorado

Great product. Great price. And the fastest shipping ever!



by:

Product arrived and was super easy to install. Works great!

Thank you!



by:
2010 ChevroletColorado

etrailer makes ordering and installing soooooo! easy. Highly recommend the products



by:

Perfect fit and much better wiring then the local shops. Shipping was superfast as well. THANK YOU



by:

colorado tail light converter harnessGreat people to do business with,Fast shipping,As described. Would buy from again. Thank You for a great transaction.


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207
Show More Reviews

See what our Experts say about this Tekonsha Custom Fit Vehicle Wiring

  • Recommended 7 Way Trailer Harness For Chevy Colorado
    The Universal 7-WAY Installation Kit for Trailer Brake Controller # ETBC7 will fit your 2005 Chevrolet Colorado. I have a complete step by step install video of the 2005 Chevrolet Colorado attached to show you the process. A 4-Pole Wiring Harness to control the basic hookup of the three lighting functions running, turn, and brake lights on your trailer # 118301 is recommended. The plug-In location is under the vehicle on the driver's side. Since you don't already have a 4-Pole Wiring...
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  • Trailer Hitch Recommendation for a 2012 Chevy Colordao
    I 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...
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  • 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...
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  • Trailer Wiring Harness Recommendation for a 2007 Chevy Colorado
    Actually 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.
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  • Installing a 7-Way Trailer Connector on a 2005 Chevrolet Colorado
    It 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...
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  • Will the Curt Class III Trailer Hitch # 13252 Fit a 2007 Chevrolet Colorado
    Yes, the Curt Class III Round Tube Trailer Hitch, # 13252, will fit on your 2007 Chevrolet Colorado. This hitch will simply bolt on to your vehicle frame rails and does not require any drilling, cutting or welding to install. I have attached the installation instructions and an installation video for you to check out. The receiver of this hitch will sit flush with the rear edge of your bumper and allow you to use a skull hitch cover like our Pilot Skull LED Hitch Cover, # RP86523. If...
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  • Installing a Brake Controller in 2004 Chevy Colorado
    A 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....
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  • Troubleshooting Trailer Blinker that Stops Working when Brakes Applied
    First 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...
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  • Recommended Parts to Tow a Trailer with a 2004 Chevy Colorado Z71
    I'd be more than happy to help you get everything needed for your husband's 2004 Chevy Colorado Z71 so he can use it for the repair business! The basics that he will need include a hitch receiver, wiring for the trailer lights, and a ball mount setup. Additional wiring and a brake controller can be necessary if he has a bigger trailer, but if he is only picking up appliances 1 at a time then he probably has a smaller trailer and the brake controller isn't needed. For a trailer hitch I...
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  • Troubleshooting Trailer Connector And Wiring On 2012 Chevrolet Colorado
    When a 7-way connector was installed on your Colorado, a converter should have been included because the vehicle has separate lighting meaning the brake signal and turn signals are sent along separate wires. It sounds like the wiring kit was not installed correctly. For your 2012 Colorado, I recommend a wiring harness like part # 118301. This harness plugs into the truck wiring under the truck bed on the driver side. I recommend using a circuit tester like part # PTW2993 and test the...
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  • Recommended Trailer Wiring Harness for 2006 Chevy Colorado
    You have a 3 wire system, so you will need to use the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118301 to convert the wiring on your 2006 Chevy Colorado. This custom-fit T-One connector plugs into your Chevrolet Colorado's wiring harness, which is located beneath the truck bed, near the driver's-side frame rail. This harness will convert your truck wiring into the traditional trailer wiring you stated to fit with your Hopkins 7-way and 4-way Connector. If you...
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  • 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...
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  • Parts Needed to Install 7-Way/4-Way and Redarc Tow Pro Elite Brake Controller 2008 Chevy Colorado
    To 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.
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  • 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...
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    The wiring harnesses for the 2010 Chevy Colorado plug in line with the factory tail light wiring harness so they do bypass the tow package wiring system on the vehicle. But before going that route the problem might be more easily fixed. We just have to figure out where the problem is coming from. The most likely culprit is a dirty or corroded trailer connector on the truck. Make sure that the factory connector on the truck is clean and free of corrosion inside, where the wires attach,...
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  • Parts Needed to Install a Brake Controller on a Chevy Colorado
    A plug-in brake controller wiring harness is not available for the 2005 Chevy Colorado. The vehicle requires a hardwire method to install a brake controller using a 4-Way trailer connector, if needed, # 118301, and a 4 and 7 Way Installation Kit, # ETBC7. If your truck already has a factory installed 7-Way, you will still need to do some hardwiring. You will need brake controller installation kit # 5506. With the included wire, you will connect the white wire in the install kit to the...
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  • Fit of Draw-Tite Class III 75607 Hitch on 2011 Chevy Colorado with Full Sized Spare Tire
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  • When Running Lights are On Turn Signal Circuits Do Not Work on 2005 Chevy Colorado Wiring Harness
    Normally when there is more load on a circuit, like when the running lights are on and drawing constant power, that is when ground issues show up. I know you have moved the ground once already but try moving it to another location and/or sanding down the bare metal surface for the best connection. To test this you can run a length of wire from the converter ground wire to the negative battery terminal. If the problem goes away then you know an alternate ground location will work to fix...
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  • Troubleshooting Wiring on a Trailer Towed by a 2005 GMC Canyon
    That 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...
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  • What is the Correct Trailer Wiring Harness for a 2007 Chevy Colorado
    Either 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.
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  • Plug-In 4-Way Harness For 2006 Chevrolet Colorado Pickup
    For 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...
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  • Recommended Brake Controller And Wiring For 2004 Chevrolet Colorado
    The 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....
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  • Parts Needed Tow a Trailer with a 2011 Chevrolet Colorado
    For 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...


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Info for this part was:

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