bing tracking image
  1. Custom Fit Vehicle Wiring
  2. Ram
  3. 1500
  4. 2020
  5. CURT
FITS 2020 Ram 1500
Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

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

Item # C55515
Retail:$31.49
Our Price: $17.52
You Save: 44%
Custom Fit Vehicle Wiring
Confirmed to Fit
2020 Ram 1500

with factory 7-Way

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

Add to cart
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
Call etrailer.com at 1-800-940-8924 for expert service. We are your Ram custom fit vehicle wiring experts, and offer a great price. etrailer.com carries a complete line of CURT products for your Ram 1500 2020. Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector part C55515 from CURT can be ordered online at etrailer.com. Complete custom fit vehicle wiring installation instructions and technical support.
  • All Info
  • Reviews (172)
  • Q & A (0)
  • Photos

2020 Ram 1500 - Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

  • Trailer Hitch Wiring
  • 4 Flat
  • No Converter
  • CURT

Quickly and easily install a 4-way trailer connector on your Ram 1500 with this custom harness. Connector plugs directly into OEM tow package port - no cutting, splicing or tapping required.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Designed for use with a factory tow package
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate connection point behind rear bumper
    • Plug in connector
  • Comes with dust cap for 4-way flat connector
  • Limited 1-year warranty


Installation

This custom-fit T-connector plugs into your vehicle's factory tow package wiring harness, which is located behind the rear bumper, along the driver's-side frame rail.


Once installation is complete, the 4-way 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 plug on your automobile and the 4-pole connector itself - to help prevent corrosion.



55515 Curt T-Connector - OE Replacement 4-Flat

Installation Details C55515 Installation instructions

California residents: click here


Customer Satisfaction Score:


Customer Reviews

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector - C55515

Average Customer Rating:  4.8 out of 5 stars   (172 Customer Reviews)

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

by:
2006 Chevrolet TrailBlazer

Unplugged the cap off the factory 7 pin round connector and inserted the new harness, fit perfectly. Tested the connections and all indications using a tester was spot on. This was a fantastic converter for my wiring. 10 minutes and I was done.



by:

This was a quarter of the price that Jeep wanted to sell it to me for and with some personal modifications/additional wiring I now have two versatile means of hooking up my trailer lights!



by:
2004 Chevrolet Tahoe

Connected to my 04 tahoe (base model) just like it should



by:
2014 Jeep Grand Cherokee

Excellent product and very straightforward to install. Opted for the Curt T-Connector C55515 and will have my dealer flash computer to recognize new configuration. Already used hitch with trailer to haul several heavy items up to about 2000lbs with no trouble whatsoever. Should have got this years ago!



by:

Easy install, great product - no issues yet. Recommended.



by:

Good Quality!

James

7/20/2023

Very good, No problems!



by:
2014 Jeep Grand Cherokee

Fast shipping, easy install, product as described. The only complaint was the need to take the vehicle (2014 Jeep Grand Cherokee) to dealer for ECU flash. I know this is not Etrailer's fault so not knocking them. I just hope to save other people time in the future if they think they are just able to plug in and tow.

Timothy B.

8/2/2016

8/02/2016 Update - replaced the 2014 Grand Cherokee with a 2016 Grand Cherokee, forced dealer to swap the hitch and wiring from old jeep to new jeep as part of the deal. Item still working as described, no complaints.



by:

Great product/fantastic service



by:

Plug and play is all I need to say.



by:

avalanche owners,easy too install i highly suggest when installing pull the cable through the hitch its open at the end less wire being exposed,(this is from my experience) other than that i am very happy with an troop,Patrick B,an everyone at etrailer.com provided great costumer service i will be buying from them soon.

Jason G.

8/8/2014

Still working after the harsh new England weather we had still works I highly recommend there products also I willing be putting in an order for a new Chevy light up logo so get ready



by:
2013 Jeep Grand Cherokee

Item was great and worked like a charm. Only problem was the vehicle. I used it on a 2013 Jeep Grand Cherokee. The vehicle came standard with the 7 pin connecter but since it didn't come with the "towing package", the dealer had to reprogram the system to start sending voltage to the vehicle connector.

Jim

11/23/2014

What was the cost to have the grand cherokee reprogrammed, and how long did the reprogram take?

Burt

11/26/2014

Jim the dealer charged $50 and it only took about 10 minutes once they figured out the problem. They spent about 4 hours figure it out tho.



by:

I was not aware at the time i purchased this item that it was not what i needed. The page told me i needed this item to complete my set up so i bought it. little did i know that my vehicle does not have a factory wiring harness so what i bought was useless. I am going to have to return this item. The page should also make it more clear of what you may need before you purchase something and you wait almost 2 weeks for it to arrive. I had to order what i needed else ware to be here when I need it to be.

Etrailer Expert

Heather A.

1/15/2021

Thank you for your review. The 2019 Dodge Durango does need a factory towing package to use this wiring harness. Since the 2019 Dodge Durango does not have the factory towing package you will need part Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part C56336.



by:
2014 Jeep Grand Cherokee

Question for you please. The hitch itself has been great, but I can't get the wiring harness for the lights to work on the trailer. I'm reading different things online, sounds like my Grand Cherokee may have to be programmed for the lights to work? Are you familiar with that? Is that the case?

Thanks in advance!



by:

I chose the Draw tight Max Frame Trailer Hitch for its known quality, i like it comes powder coated to reduce unsightly rust and to keep that fresh look.
I chose the this hitch for my all around light and heavy duty needs.
The Draw Tight Ball Mount is a quality enhancement to this hitch.
I chose the 2" chrome ball for its quality and appearance.
The Curt C55515 wire connector was the best choice for my lighting needs.



by:

Plug n Play once you turn on the trailer functions in the computer... dealer wanted $175 to enable the lights. It can be done DIY for around $20.



by:
GMC Terrain

The connector was as described ,no splice and simple. Also i ordered one for my Terrain and a class 2 hitch. Although the harness for the car was the wrong part,the customer service dept. took care of it immediately and it fit and installed with ease. The hitch went on with no problems and their videos showed everything you need to do. These guys will get my business from now on. a+++



by:
2006 Ford Ranger

Decent looking product. Would have been even better if it worked as advertised. Does not plug into my 2006 Ranger with tow package. Etrailer.com offered to refund the purchase price minus the original shipping cost, plus I had to foot the bill to ship it back. It would have cost more than it's worth. No thanks, I'll just use the pigtail and hard wire it.

Etrailer customer service was very prompt in responding, not that it did me any good.



by:
2017 Dodge Durango

Installation of the T-Connector was extremely easy once I released the lock that held the factory cover in place, however, I don't recall seeing mention of the fact that the dealer has to "flash the ECU" [computer] to enable and turn on the factory wiring harness. I spent quite a bit of time troubleshooting no lights before finding mention of this on the internet and confirmed with a dealership that wanted $160 to do this work.



by:
2014 Jeep Grand Cherokee

Trailer hitch fit like a glove and looks great. The wiring harness was exact fit and will have to go to the dealer and have the vehicle part of the wiring turned on. Instruction and video on e-trailer helped a lot to determine my needs and installation.



by:
2017 Dodge Durango

Installation went well. You will need to cut the spare tire splash cover. Its made of plastic and was easy to cut in place with a, multi tool saw.
Also the Curt T- wiring harness # C55515 plugged in easy as well.
I would also recommend the mounting bracket # 18144 for a nice clean job.
On the 2017 Durango you will have to have the dealer activate the tow plug (flashing the computer ).



by:
2014 Jeep Grand Cherokee

Works perfectly! Pulled the cover off the existing plug on my 2014 Grand Cherokee (up under the rear of the vehicle) and this plugged right in.

NOTE: You may have to have the computer flashed by the dealer to enable trailer lighting. This cost me about $45 at a local Dodge dealer.



by:

No lights after installation. Don't think it was product's fault. Dealer told me vehicle did not have module for trailer lights, even though it had the connection for your harness. Ugh!



by:

After going to many auto stores trying to track down this wiring harness I finally found it at Etrailer. Had the part in my hands before they said it would arrive. Could not beat the price. Thanks again Etrailer.



by:
2014 Jeep Grand Cherokee

Shipped on time. Installed very easily with help from the video tutorial. Works great and easy to connect trailer on and off that is after I went to the dealership so to activate the trailer lights from the computer because I did not have the tow package when I initially bought the car.



by:
2003 Chevrolet Silverado

Product was easy to install into the Chev Silverado's existing wire harness. The provided zip ties allowed me to route the 4-wire unit beside existing wiring to the hitch receiver area. Be sure to review the provided videos on simple installation.


25
172
Show More Reviews

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

  • Is There a Plug and Play Wiring Harness For Installing a 4-Way on a 2003 GMC Yukon?
    First you are going to want to check behind the rear bumper on your 2003 GMC Yukon as there were several vehicles built that while not having the factory tow package will still have the plug for the 4-Way # C55515. If you do not have this plug then you will need the 4-Way # C59496 which does require being spliced into the factory tail light wiring. Then you will be able to mount a Receiver # e26KR as long as you do not have the EPA Canister on the passenger side frame rail.
    view full answer...
  • Troubleshooting Trailer Connectors That Do Not Pass Running Lights or Turn Signals
    The best way to troubleshoot trailer wiring is to first test your Acadia's 4-pole WITHOUT the Curt adapter. This will let you know if the signals are reaching the adapter. Even though the LED test lights may come on, since these take so little power to light up it could be that there is a small residual voltage in the system that is causing them to illuminate even when no actual running light or turn signal is reaching the adapter. You can use a tester like the # PTW2993 to check the Acadia's...
    view full answer...
    Image 1 for
  • Recommended Trailer hitch Receiver For a 2008 Ford Ranger 4x4
    I recommend installing our etrailer Trailer Hitch Receiver # e29AR on your 2008 Ford Ranger 4x4 with the 4.0L 6 cylinder engine. The frame mounted receiver may require the drilling of 2 additional holes as Ford did not drill these holes in every Ford ranger. There is also not a bolt on receiver for your bumper. I have linked the installation instructions below so you can see where the holes are ahead of time to determine if you will need to drill. If you will need a 4-way flat connector...
    view full answer...
  • Recommended 4-Way Wiring Harnesses for a 2007 Ford Ranger w/ and w/out the Tow Package
    Installing the Curt T-Connector Vehicle Wiring Harness item # C55515 will not require you to flash the ecu on your 2007 Ford Ranger. This harness installs on the Ford Ranger's with the factory tow package. If your truck didn't come with a 4-way or 7-way connector you will need the Hopkins Plug-In Simple Vehicle Wiring Harness item # HM40655. This harness does not require the ecu to be flashed either.
    view full answer...
  • Is There a Completely Hidden Hitch Available for the 2020 Dodge Durango?
    I have a great solution for you to mount a hitch behind the bumper on your 2020 Dodge Durango; have a look at the Draw-Tite Class III Max Frame # DT38MR. This hitch mounts behind the bumper and is accessible via the removable panel on the rear bumper so that it stays hidden when it's not in use. When it comes to wiring, you'll want to use the Tekonsha # 118617 which plugs in behind the driver and passenger side tail lights to provide you with a 4 way connector on the rear of your vehicle....
    view full answer...
    Image 1 for Image 2 for
  • Recommended Wiring Harness for a 2014 Jeep Grand Cherokee Without a Tow Package
    Your 2014 Jeep Grand Cherokee may have the connector needed but it's not active. First, I would use a circuit tester such as # PTW2992 to test the connector to see if it's active. Since your Jeep did not come with a factory 7-Way you may need to have the dealer reprogram the computer to activate the trailer wiring harness. The harness will plug into the connector though. There are 3 trailer wiring kits we currently offer that works with your 2014 Jeep Grand Cherokee as long as the connector...
    view full answer...
  • Adapting 7-Way Trailer Connector on 2012 Nissan Titan To 4-Pole Connector on Trailer
    Your Titan would've been factory equipped either with or without the 7-way trailer connector. If there's indeed a connector on the rear, it would be the 7-way. There's a few ways you can go about doing this. The easiest option would be to adapt the 7-way to work with a 4-pole by using a plug-in adapter like part # PK12716. You could also use the # C55515 that you referenced. You'd unplug the wiring harness from the rear of your 7-way, and plug the # C55515 inline with that connection....
    view full answer...
  • 4-Way Trailer Connector Recommendation for a 2011 Chevy Traverse
    If you have a round trailer connector harness under the bumper of your 2011 Chevy Traverse the part # C55515 would work as a 4-way harness. If you can't find that connector you would use the part # 118450 for a 4-way harness. If you need to order something right now this harness would fit regardless of your setup.
    view full answer...
  • Troubleshooting Trailer Wiring that Intermittently Works On Trailer While Towing
    Trailer wiring can ground through the ball of a trailer, but since it's not a reliable ground and it can be intermittent (exactly like what you described), it is better to have everything ground properly through the wiring of the trailer harness. The wiring of your trailer should have a ground wire that is securely run to an unpainted metal surface on your trailer. Improving this ground will fix the problem you described. You can also try running a jumper wire from each of your light assemblies...
    view full answer...
  • Trailer Wiring Replacement Recommendation for a 2007 Ford Ranger
    Was the connector you found on your frame rail a round connector like what the part # C55515 would plug into? If so that would provide you with a 4-way. Or if you are looking of a 7-way you would want the part # 74682. If for some reason you couldn't get a T-connector like the part # HM40655 to work the only other option would be a hardwire kit like part # 18252. The part # HM40655 is a confirmed fit for your truck though and will work as it was designed specifically for your truck.
    view full answer...
  • 4-Pole Trailer Wiring Harness Options for 2017 Audi Q7 Prestige
    The Curt hitch # C13277 is a confirmed fit on your 2017 Audi Q7 but the wiring harness # C55515 is not confirmed at this time. This harness does not fit any Audi models; it fits only U.S. vehicles that have an industry-standard round U.S. Car type connector, which is usually found under the rear bumper or tucked away behind the spare tire. The correct 4-pole wiring harness options for your 2017 Q7 are Curt part # C59236 and Tekonsha # 119250KIT. The Curt is a hard-wired installation and...
    view full answer...
  • Trailer Hitch and 4-Pole Wiring Harness Recommendation for 2014 Jeep Grand Cherokee Laredo
    The Curt trailer hitch receiver # C13182 that you referenced is a correct fit for your 2014 Jeep Grand Cherokee Laredo as long as it is not an SRT-8 or diesel version. This 2-inch Class III hitch bolts on using included hardware, no drilling or welding required, but will require removal of tow hooks for installation if they are present. For a 4-pole trailer connector you can use # C55515 from Curt, which plugs in at the round U.S. Car connector under the vehicle, but note you will have...
    view full answer...
  • Parts Needed to Install Trailer Brake Controller for 2005 Chevrolet Trailblazer
    We do not carry a trailer brake controller called the POD but we do offer many, including both time-delay types like the cost-effective Tekonsha PowerTrac # 39523 up to the best proportional type controllers like the Prodigy P2 # 90885 and P3 # 90195. These are among the most reliable and easy-to-use controllers on the market. Each type of controller offers advantages in certain specific circumstances. The linked article will help explain the benefits of each type. Other parts may be needed...
    view full answer...
  • No Trailer Running Lights on a 2012 Jeep Grand Cherokee
    If all of the trailer lights are working except the running lights then there could be a few potential causes. For starters, I would check that the trailer running light fuse on your 2012 Jeep Grand Cherokee to make sure it is intact. If this is not the problem then you will want to check the pins inside each trailer connector in addition to the wires leading into the back of them. The wires need to be tight without much play while pulling them and the pins need to be straight and free...
    view full answer...
  • Will the Carpod Walled Cargo Carrier Fit a 2014 Buick Enclave
    The Carpod Walled Cargo Carrier part # M2200-01-02 requires that you have 4" or fewer from the center of your hitch pin hole to the rear edge of your bumper. The trailer hitch options we have like the Draw-Tite Max-Frame Trailer Hitch Receiver part # 75528 do not meet this requirement (5") which means the Carpod Walled Cargo Carrier may not work for you depending on the above measurement for your 2014 Buick Enclave. If the Carpod Walled Cargo Carrier will not work then the GearDeck 17...
    view full answer...
  • 7 Way Trailer Wiring Recommendation for 2015 Ford Expedition
    If you trace the 4-way harness back does it end with a round connector like the part # C55515? If so, then what you can do is replace that assembly with the # HM40975 and you'll have a 7 and 4-way. Or you can look to see if you can find that round connector tucked up somewhere behind the bumper area. It SHOULD be there but if not we can still help. Now if your trailer does not have brakes all you would need is the part # 37185 as an adapter to convert the 4-way to a 7-way. If you do...
    view full answer...
  • Recommended 4-Pole Wiring Harness That Works W/ A 2022 Ram 1500
    I went ahead and checked out the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector you mention you have, and it turns out that, that wiring harness is not compatible with your 2022 Ram 1500. This would explain why it is not working with your vehicle. Instead, you're going to need the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package # C55515. This wiring harness will plug into your factory wiring and will provide your truck with a 4-way flat trailer connector...
    view full answer...
  • How to Activate Trailer Lights on 2014 Jeep Grand Cherokee Laredo with C55515 Wiring Harness
    I spoke with my contact at Curt and he said if you have installed the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector # C55515, you will not need to do anything with the fuses to enable the trailer lights. However, you will need to take your vehicle to your Jeep dealer and have them reprogram the Jeep's computer to activate the trailer wiring harness. It will take about 10 minutes.
    view full answer...
  • Recommended Trailer Wiring Harness for a 2002 Chevy Silverado 1500 To Connect a Boat Trailer
    If you just need the socket portion I recommend the Hopkins # HM40975 and it will allow you to tow your boat trailer with either a 7- or 4-pole plug. It will come with the mounting bracket too. If you need the harness to plug into the frame wiring then use # C55515. The connector plugs directly into your factory tow package port. The wiring configuration is as follows: Red - Left Turn and Stop - 14 gauge White - Ground - 10 gauge Blue - Electric Brakes - 12 gauge Green - Right Turn...
    view full answer...
  • Fuse and Relay Locations for Trailer Lights on a 2008 Ford Super Duty
    Starting on page 303 of the owner's manual for a 2008 Ford Super Duty it looks like there are relays in positions 20 and 21 for the left and right stop/turn trailer signals. Then on page 305 there is a fuse in position 34 for the stop/turn relay and in position 42 there is a fuse for the park lamp (running lights) relay. Page 306 shows a relay in position 55 for the park lamps and a fuse in position 63 for the back-up lamps as well. Let me know if you are still having problems and I can...
    view full answer...
  • Is a Tail Light Converter Needed To Install Curt 4-Way on a 2006 Chevrolet Silverado 2500?
    Allen, you are not going to need a converter to use the Curt T-Connector Vehicle Wiring Harness # C55515 on your 2006 Chevrolet Silverado 2500. This harness plugs into the tow package wiring behind the rear bumper so you are not splicing in line of the tail light wiring which is why most vehicles will need a converter.
    view full answer...
  • How to Activate Factory Tow Package Wiring on a 2017 Dodge Durango
    To activate the factory tow package wiring on your 2017 Dodge Durango you will most likely have to take the vehicle to the dealer and they can make it fully functional. Trailer wiring harness # C55515 is designed for models that already have the factory wiring activated. The other option for you is to use wiring harness # 118617 which plugs in line with the vehicle tail light wiring. I have included a link to a video showing an example installation of this harness.
    view full answer...
  • How to Tow a Trailer with a 4-Way Flat Connector with a 2010 Buick Enclave with 7-Way Connector
    To convert the 7-way trailer connector on your 2010 Buick Enclave to a 4-way flat connector, you can use the Hopkins 7-Way RV to 4-Way Flat Trailer Connector Adapter, # HM47365. This adapter will allow you to power the lights on your trailer without having to install a new wiring harness on your vehicle. This way you can tow a trailer with a 7-way in the future if needed.
    view full answer...
    Image 1 for
  • Recommended Trailer Hitch And Wiring For 2017 Dodge Durnango
    For your 2017 Dodge Durango, I recommend the Draw-Tite Max-Frame Trailer Hitch Receiver Class III - 2", # 75713, that you mentioned. I have attached an installation video for you. This is a very nice hitch. If you need a ball mount, I recommend the etrailer.com Ball Mount Kit for 2" Hitches - 7,500 lbs, # 989900. This kit will give you to different ball mounts of different heights and two hitch balls to connect your trailer. You may want an adjustable ball mount like the 180 Hitch...
    view full answer...


< Previous



Do you have a question about this Custom Fit Vehicle Wiring?


Info for this part was:

Employee Andrew K
Video by:
Andrew K
Employee Kathleen M
Video by:
Kathleen M
Employee Dustin K
Video by:
Dustin K
Employee Lindsey S
Written by:
Lindsey S
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee John H
Expert Research:
John H
Employee Adam R
Expert Research:
Adam R
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Zach D
Video Edited:
Zach D
Employee John S
Video Edited:
John S
Employee Nicholas E
Test Fit:
Nicholas E
Employee Randy B
Test Fit:
Randy B
Employee Brent H
Test Fit:
Brent H
Employee Matthew B
Test Fit:
Matthew B
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B
Employee David F
Installed by:
David F

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.