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  1. Custom Fit Vehicle Wiring
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FITS 2018 Ford Explorer
Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector
CURT

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Part Number: C55384
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$30.36
Retail:$62.25
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Custom Fit Vehicle Wiring
Confirmed to Fit
2018 Ford Explorer

with factory Tow Package

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The best technical support and full custom fit vehicle wiring installation instructions. Great price Explorer custom fit vehicle wiring and expert service. Ford Explorer, 2018 custom fit vehicle wiring by CURT are available from etrailer.com. For expert service call 1-800-940-8924 to order your Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector part number C55384, or order online at etrailer.com.
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2018 Ford Explorer - Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Highlights

  • Quick and Easy Installation: Installs in minutes without cutting or splicing wires.
  • Custom Fit for Many Vehicles: Perfect fit for multiple models, ensuring reliable connectivity.
  • Maintains OEM Connections: No need to sacrifice your 7-way connector for a 4-way.
  • Comes with Dust Cap: Protects the 4-way flat connector from dirt and moisture.
  • Corrosion Prevention: Recommended to use with grease for long-lasting connections.
  • Plug and Play Design: Ideal for adding extra lighting like LED bars without wire splicing.

Features to know about

Effortless Trailer Connection: Custom-Fit T-Connector Harness

Say goodbye to cumbersome splicing and cutting wires. The Curt T-Connector Vehicle Wiring Harness for Factory Tow Package simplifies the process by providing a seamless 4-way flat trailer connector directly to the factory-installed wiring harness of your vehicle. Designed to be user-friendly, this harness plugs into the 7-way OEM tow package without the need for modifying your vehicle's electrical system. Enjoy a hassle-free installation process that keeps your connections secure and reliable for any towing adventure.

Maintain Versatile Towing Options: Retain 7-Way Connector Functionality

Expand your towing utility without compromising your existing setup. This T-Connector harness not only equips your vehicle with a 4-way flat connector for trailers but also retains the functionality of your factory 7-way connector. Perfect for vehicles with sophisticated towing needs, such as the 2009 Chevy Silverado 2500HD or 2019 Ram 1500 Classic, this harness provides adaptability for diverse towing requirements.

Corrosion Prevention for Longevity: Protective Dust Cap and Grease

Keep corrosion at bay and preserve the longevity of your electrical connections. This harness comes with a handy dust cap for the 4-way flat connector, protecting it from road grime and the elements. For the most durable results, it's recommended to apply a small amount of grease on all plug contact points, ensuring optimal performance and safeguarding against moisture and corrosion.

Lightning-Fast Installation: No Dealer Activation Needed with Factory Tow Package

With the factory tow package, the Curt T-Connector Wiring Harness offers a straightforward installation that eliminates the need for a costly dealer visit. Simply plug in the harness, secure it, and you're ready to tow without any delay or additional programming charges. It’s a perfect fit for models like the 2020 Jeep Grand Cherokee with the tow package, providing an out-of-the-box towing solution.

Expand Your Trailer Lighting Capabilities: Perfect for Tailgate Light Bars

If you’re considering adding a tailgate LED light bar, this T-Connector makes it a breeze. This harness allows you to power additional lighting without cutting into your vehicle's wiring, offering a clean and professional finish. Ideal for trucks like the 2014 Silverado, it seamlessly integrates with your truck’s lighting, maintaining a tidy and efficient look that enhances your vehicle’s functionality.

Enhanced Towing Security: Quality Build and OEM Style

This harness is constructed with high-grade materials, mimicking OEM styles to ensure a perfect fit and finish every time. Your 2020 Ram 2500 or even the 2017 Jeep Grand Cherokee will benefit from heavy-gauge wiring and sturdy connectors that stand the test of time, delivering reliable performance for all your towing needs. The Curt T-Connector harness is built to last, providing a trustworthy connection every time you hit the road.

55384 CURT T-Connector - OE 4-Flat Upgrade

Installation Details C55384 Installation instructions

California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.8

692 reviews
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into 7-way OEM tow package wiring harness - no cutting, splicing or tapping required.

by:
2014 Jeep Grand Cherokee

Hitch is great. Arrived when promised! Had a few scuffs, probably from shipping as box had some holes. Installed great, once I was able to break loose the bolts for the rear tow hook that had to be removed. Liked how everything was packed but a ton of brads to remove. Wiring connector was cake as I knew it would be. Not able to test as I am taking to Jeep to have them make sure it is on through program. My only concern is my 2014 Jeep Grand Cherokee was not a vehicle listed on the sheet of vehicles it is for. I clicked on the item you folks had pop up, with hitch, that would fit. But no Jeeps listed. Again, it plugged right in, so I assume it is correct! Thanks for an effortless purchase!!



by:
2025 GMC Sierra 1500

Did not work with trailering on the infotainment system. Kept throwing a fault and was not enough power to the lights themselves as they were flickering.

Kate F. profile picture
Etrailer Expert

Kate F.

9/10/2025

It will still work Jonathan, you don’t actually need a spare tire compartment to install the CURT 59236 tail light converter on your 2022 vehicle. The little black box can go in plenty of other safe spots, like behind a taillight, inside the trunk, or near the rear bumper. Just splice the wires into your tail light circuits with the included connectors, ground the white wire to a clean metal surface, and run the power lead up to your battery with the supplied fuse holder. Once it’s mounted securely and the 4-way plug is routed out the back (or stored inside when not in use), you’re all set.



by:

We used it to extend the wiring harness to install an aftermarket bumper for a 3rd gen Tacoma. It seemed to fit well and continues to work fine.



by:
2025 GMC Sierra 1500

Product worked just fine. Was able to hook up my hitch cover LED lights with ease.



by:
2025 Chevrolet Silverado 2500

This was the fastest install of any electrical harness I have ever purchased. It worked perfectly. I could not be happier.



by:
2024 Chevrolet Silverado 2500

Nice but would have liked to have a reverse wire included so I don't have to tap into reverse light.



by:
2003 Chevrolet Silverado

Easy plug and play after lowering down the spare tire. This, along with the Curt trailer hitch, allowed me to be fully up and towing on my '03 Silverado within an hour.



by:
2025 Chevrolet Silverado 1500

Easiest installation ever! No wire splicing, just plug and play! This is an awesome part! Thanks, 5 Star for sure.



by:
2024 Chevrolet Silverado 1500

It took me about 15 minutes to install. I am using it for my led light bar and a receiver hitch light. The cable ties supplied weren't long enough, I had some some that were. It was very simple to install! This is my second product from them.



by:

I added a light bar to my 2017 Ram 2500. The T connector worked great. Saved time by not having to splice into existing hitch wiring.



by:
2018 Dodge Ram Pickup

I installed my Curt T-Connector today to my 2018 RAM 1500 Sport 4x4 Crew Cab. The mileage on the truck is at 10679km's. Although warned that the spare tire might require removal (via web site info from fellow RAM owners) that was not the case as there was enough room to remove the OEM connector (which is the short end of the assembly) from the factory housing. The actual disconnect and re-connect took only a couple minutes. I spent a about 15 or 20min's trying different wiring run routings for the aux. four connector plug wiring run. Some tie-wraps where installed to snug things up out of the way and I was done. I also dosed the connections with a shot of Krown 77 lube/rust inhibitor. I'm in the "Great White North" so salt use on roads is a given during the winter months. A quick test run of the lights and I was done. The build quality of the T-Connector is very good..equal to OEM or better I'd say.



by:
Dodge Ram Pickup

Used on a 2024 Ram 2500. Worked great.



by:
2023 Ram 3500

Perfect, saved me a lot of time and lab or.

Leroy profile picture

Leroy

7/31/2025

I pull a gooseneck nearly everyday. I have not had any issues whatsoever.



by:
2016 Chevrolet Silverado 1500

Very fast shipment, perfect fit and works great.

Bill profile picture

Bill

7/23/2025

After a year, this harness is still working great without any issues. Highly recommend it.

Jon G. profile picture
Etrailer Expert

Jon G.

7/23/2025

@Bill Happy to hear it! Do you use it to tow a trailer, or for powering an accessory like an LED light bar?


by:

Fit perfect and installation was easy.



by:

Awesome!! I bought an OPT7 triple LED light bar for my Chevy Colorado and I didn’t want to splice wires or lose a whole lot of time trying to figure out how to wire it up so I googled and I came across a gentleman who used this product and Im very thankful for this connection and my light bar works smoothly and I have full use of the reverse camera AND I don’t have any wire mess outside or underneath my truck! Easy to install, my first time doing this and it literally took me about 2 minutes, if that! Definitely would recommend this product to anyone with a truck!! Thank you guys!!



by:

Easy to install. But I needed to order the mount plug for my truck.



by:
2005 Chevrolet Silverado

Installation was very easy and only took about 15 minutes to hook up and secure wiring on truck.



by:

This part will not work on a 2021 grand Cherokee I need to return



by:

Quality product



by:
2013 Jeep Grand Cherokee

Order class iii hitch and wiring harness for my 13 keep grand Cherokee . Came next day. Installed in 20 minutes. Great product. High quality and easy install

Product was shrink wrapped, taped and boxed ver professionally. Website also very easy to use

Would definitely recommend to anyone



by:
2013 Chevrolet Avalanche

Easy to install works great shipping and communications was fantastic. Now my USMC LED light hitch cover is on the truck without an adapter.



by:

This is a great vehicle to trailer wiring harness just plug it in and you're ready to go and that's all they are to it plug and go and I recommend it.



by:

Perfect fit. Took 20 minutes to install wire harness and hitch receiver.



by:

Easy to install and tucks away nicely next to the hitch. No hanging wires and really clean look


25
692
Show More Reviews

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

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    It sounds like you already have the factory 7-way on your truck and just need a short extension. There is not a basic extension available without the 7-way, so I recommend the Reese Multi-Plug Wiring Harness for Factory Tow Package - 7-Way and 4-Way Flat Trailer Connectors # 74682. This should give you the short extension needed for your aftermarket bumper. If you have a longer connection need, then I recommend the Pollak 5th wheel and goosenesk trailer connection # PK11932 which will...
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