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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
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Custom Fit Vehicle Wiring

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C55515 - No Converter Curt Trailer Hitch Wiring
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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. Call 800-298-8924 to order Curt custom fit vehicle wiring part number C55515 or order online at etrailer.com. Free expert support on all Curt products. Guaranteed Lowest Price and Fastest Shipping for Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (121)
  • Q & A (45)
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Curt Custom Fit Vehicle Wiring - C55515

  • Custom Fit
  • Trailer Hitch Wiring
  • Curt
  • 4 Flat
  • No Converter

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.


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

This Product Fits The Following Vehicles



California residents: click here



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   (121 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.

- C55515
by:

Works great 717401



- C55515
by:

Super easy to install. 683543



- C55515
by:

Easy to install, good quality 551139


Comments
Great, good instruction and dependable
Albert - 08/08/2019

58778

- C55515
by:

Great product and fast delivery, thanks. 880897



- C55515
by:

Just what I ordered. Easy ordering site, quick shipping n they kept me notified of the order process. Will definitely buy from this site again. 867886



- C55515
by: 08/21/2020

the right way to wire your vehicle for a trailer! 865927



- C55515
by:
2002 Chevrolet Silverado

Perfect fit to my 2002 silverado. I had to hard wire it in. Works great 817158



- C55515
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. 800975



- C55515
by:
2005 Chevrolet Silverado

Hitch fit like a glove..wiring too! I just wished you carried rv appliance parts! 796607



- C55515
by:
2004 Chevrolet Suburban

I have another plug/adapter, but I needed the extra length this piece gives me... I am happy with 4pin plug is wired correctly....I bought one from someone else, and it was NOT...etrailer is my go too for trailer products.... 794655



- C55515
by:

Excellent product! 785015



- C55515
by:

Product works great it was very easy to install . thanks 771051



- C55515
by:

Really fast shipping, haven't installed yet but looks good! 763795



- C55515
by:

Very helpful when you don't have one 745422



- C55515
by:
2004 GMC Sierra

both products work great!! 715079



- C55515
by:

I have ordered from etrailer a few times excellent service and very quick delivery I highly recommend. 702945



- C55515
by:
2016 Chevrolet Traverse

Plug and play, what more can I say! 667067



- C55515
by:

just hook up and go, that simple. Thanks again for great product. 666996



- C55515
by:

Great product and super easy to install. Took less than 15 minutes. Did the install and had the computer recalibrated to turn on the connector and was in business. Thanks 649702



- C55515
by:
2003 Chevrolet Silverado

Professional way to wire your truck for a trailer. 613175



- C55515
by:

Exactly what i ordered works good but i just keep that for back up if the 7 way fails. 609952



- C55515
by:

Fits as suggested 598727



- C55515
by:

good product,fair price &service!! 567344



- C55515
by:
2014 Jeep Grand Cherokee

Product is everything that was described shipping was fast. 550793



- C55515
by:

I would highly recommended this website everything I ordered was great and delivered fast I will be coming back for other items and will telling others 546184


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Ask the Experts about this Curt Custom Fit Vehicle Wiring

  • Recommended 7-Way to 4-Way Adapter
    You can either use an adapter like the 7-Way to 5-Way/4-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs # TR20141 or the basic # PK12716. If you want to replace the connection, the Hopkins Endurance Multi-Tow 7-Way RV and 4-Way Flat Trailer Connector - Vehicle End # HM40950 will give you both the 7-way and 4-way connection with a permanent mount. If you will be towing this trailer often, then this option is my recommendation.
    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...
  • Recommended Trailer Wiring Harness For 2014 Dodge Durango
    Since you found a connector near the spare tire on your 2014 Durango, there are a couple options for you. You will need to test the plug you found with a circuit tester like part # 40376. Have someone sit in the driver seat and run through the functions while you use the tester to see what functions you have on the plug. If you want a 4-way flat connector on your vehicle I recommend part # C55515. This will plug into the plug you found by the spare. If you want to do some towing...
    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...
    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...
  • Is the Curt T-Connector part # C55515 Compatible with a 2002 Chevy Silverado
    As long as you have a factory 7-way at the rear of your 2002 Chevy Silverado yes, the Curt T-Connector part # C55515 that you referenced would work for you.
    view full answer...
  • Troubleshooting 2014 Jeep Grand Cherokee Trailer Lights that No Longer Work
    The Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector # C55515 is a confirmed fit for your 2014 Jeep Grand Cherokee with a tow package. Since the lights worked and don't work any longer, I recommend disconnecting the Curt harness from the factory harness, and checking the pins of the factory harness with a circuit tester like # PTW2993. Also check for bent pins as this can be the cause of a poor connection. If the functions work correctly...
    view full answer...
  • 4-Pole Trailer Wiring Harness for 2006 GMC Envoy
    All of the wiring harness products for your 2006 GMC Envoy are shown on the linked page and all use the same type of round U.S. Car connector for installation. Please refer to the linked photo. All of these harnesses are the plug-and-play variety that require no cutting of splicing of wires. The Curt harness # C55515 will plug into your U.S. Car connector and provide a 4-pole flat type trailer connector for stop, turn and tail light signals for a trailer. I linked a helpful article...
    view full answer...
  • 4-Way and 7-Way Connector Recommendation for a 2003 Chevy Trailblazer
    What you have is the twist lock style of 7-way bracket on your 2003 Chevy Trailblazer. If you want to use the # C55515 you will need to find a way to secure it with zip ties. Or you could go with the # HM40920 as this is a 7-way and 4-way connector that will plug into your harness and can use the twist lock mounting bracket.
    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...
  • Troubleshooting No Trailer Wiring Turn Signals on 2012 Jeep Grand Cherokee Factory Trailer Wiring
    Most likely it's a blown fuse under the hood of your 2012 Jeep Grand Cherokee for the trailer wiring turn signals. You can check there and replace as needed. The other possibility is that the trailer wiring connector is damaged and is in need of being replaced. I'd first check all of the pins on the connector for corrosion and clean as needed with sandpaper though. But if when you are there you see that the connector is overall in bad shape it's probably just better and easier to replace...
    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...
  • 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...
  • Recommended 4-Way for a 2004 Chevrolet Silverado Without Tow Package
    The 2004 Chevrolet Silverados should all come with the US Car Connector under the bumper near the spare tire. It is a round plug that will match up to the Curt T-Connector Vehicle Wiring Harness part # C55515. If you are saying you don't have this only option would be a splice-in one, the Curt Upgraded Circuit Protected Powered Tail Light Converter part # C56496.
    view full answer...
  • Troubleshooting Trailer Wiring of 2015 Grand Cherokee That Stopped Working
    If your factory trailer wiring stopped working it's most likely due to blown fuses or relays under the hood of your 2015 Jeep Grand Cherokee. That's what I would check first. From there if everything looks good it would be time to go to a dealer to see if anything needs to be reflashed. Older Ram trucks used to require their TIPM to be reset if the trailer wiring ever experienced a short.
    view full answer...
  • Turn Signals and Brake Lights Not Working On 2004 Nissan Titan Factory Tow Package Wiring
    If you are testing that actual trailer connector on your 2004 Nissan Titan with a circuit tester, such as # 40376, then the likely culprit causing the brake and turn signals not to work is a bad or missing fuse or relay. Consult the trucks owners manual and/or power distribution box lid to determine the locations of the fuses/relays related to the tow package wiring. Fuses are easy to check but relays are a little harder. Basically to test a relay you need a known good relay that you...
    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...
    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...
  • What Is Total Length Of Curt T-Connector Vehicle Wiring Harness Item # C55515
    I confirmed with Curt that the total length of the Curt T-Connector Vehicle Harness, Item # C55515, is 37 inches from end to end. It will plug directly into your OEM tow package port with no splicing required. Let me know if you have any other questions.
    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 Turn Signals Coming on When Brakes are Pressed
    From what I can tell from your description it sounds like what you are going to need is a 2-to-3 converter, the Vehicle to Vehicle Tail Light Converter # C56196 in order to make sure when you hit your brakes the turn signals no longer go on. You are going to need Tail Light Isolating Diode System # 38955 as well in order to prevent power feedback. You will just need to ensure you install this system behind the 7-way on your trailer; I have added a link to a video review of this converter...
    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 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 # 76196. 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...
  • Is Drilling Required to Install Trailer Hitch on 2017 Dodge Durango
    Nope, you sure won't. There is absolutely no drilling required to install a trailer hitch on your 2017 Dodge Durango, it is a complete bolt-on installation. I recommend the Draw-Tite # 75713 because it will fit even if you have a full-sized spare tire under your vehicle, unlike the option from Curt. For wiring which will give you a 4-way connector and allow you to power your trailer's lights you need Wiring Harness # C56336 if your Durango does NOT have the factory towing package....
    view full answer...
  • Troubleshooting Trailer Wiring on 2012 Ford Expedition
    Your 2012 Ford Expedition should have a factory 7-way harness. There is a round connector called a US CAR connector that will allow you to have the wiring functions you need. If you need a 4-way, use # C55515 or if you want to add a 4-way in addition to your 7-way you can use # C55384. If you want a replacement 7-way use # C55774 which will give you both options. If you are having issues with function, check your owners manual for fuse or relay issues if it is just a single function...
    view full answer...
  • Parts Needed to Tow a Trailer with a 2017 Dodge Durango R/T
    Since you are wanting to keep your full size spare installed on your 2017 Dodge Durango R/T the trailer hitch that you need to use is the Draw-Tite # 75713. This has a Tongue Weight (TW) rating of 900 lbs and a Gross Trailer Weight (GTW) rating of 6,000 lbs. When used with a weight distribution system the TW stays the same but the GTW jumps up to 7,500 lbs. You will need to consult your owner's manual regarding your max towing capacity as it is typically lower than what the trailer hitch...
    view full answer...
  • Trailer Hitch Recommendation for a 2014 Jeep Grand Cherokee Altitude with Dual Exhaust
    As long as your 2014 Jeep Grand Cherokee is not an SRT-8 or the diesel model, then you have a few different hitches to choose from. The least visible hitches for your Jeep will be either the Hidden Hitch Class III Trailer Hitch, # 87595 (no longer available), or the Draw-Tite Class III Trailer Hitch, # 75699. Hidden Hitch and Draw-Tite are sister companies, so these hitches are identical. They both have a towing capacity of 5,000 lbs and a tongue weight capacity of 500 lbs and they will...
    view full answer...
  • Recommended Trailer Hitch, Wiring Harness and Weight Distribution System for 2019 Dodge Durango
    The trailer hitch I recommend for your 2019 Dodge Durango is the Draw-Tite # 75713 because of its large 900 lb tongue weight capacity and the fact that it does not require drilling into your Durango's frame to install. This hitch has a 2" receiver and 6,000 lb towing capacity, though that number increases to 7,500 lbs when used with a weight distribution system. Please keep in mind that you will need to check your Durango's owner's manual for the vehicle's towing capacity and abide by whichever...
    view full answer...




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Info for this part was:

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Written by:
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Expert Research:
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Video Edited:
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Test Fit:
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Test Fit:
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Test Fit:
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Updated by:
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