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Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 5-Pole Flat Trailer Connector

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 5-Pole Flat Trailer Connector

Item # C56515
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Custom Fit Vehicle Wiring

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Custom Fit Vehicle Wiring C56515 - Custom Fit - Curt
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In Use/Installed

Quickly and easily install a 5-way trailer connector on your vehicle with this custom harness. Connector plugs directly into OEM tow package port - no cutting, splicing or tapping required. Ideal for towing a trailer with surge brakes. Call 800-298-1624 to order Curt custom fit vehicle wiring part number C56515 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 - 5-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
  • All Info
  • Reviews (37)
  • Q & A (17)
  • Photos
  • Why etrailer?

Curt Custom Fit Vehicle Wiring - C56515

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

Quickly and easily install a 5-way trailer connector on your vehicle with this custom harness. Connector plugs directly into OEM tow package port - no cutting, splicing or tapping required. Ideal for towing a trailer with surge brakes.


Features:

  • Provides a 5-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
    • Fifth pin provides connection to reverse lights to allow proper functioning of hydraulic brake actuator
    • Compatible with 4-way flat trailer connectors
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate connection point behind rear bumper
    • Plug in connector
  • Comes with dust cap for 5-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 5-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 5-pole connector itself - to help prevent corrosion.



56515 CURT T-Connector - OE Replacement 5-Flat

Installation Details C56515 Installation instructions

This Product Fits The Following Vehicles



California residents: click here



Customer Reviews

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 5-Pole Flat Trailer Connector - C56515

Average Customer Rating:  4.8 out of 5 stars   (37 Customer Reviews)

Quickly and easily install a 5-way trailer connector on your vehicle with this custom harness. Connector plugs directly into OEM tow package port - no cutting, splicing or tapping required. Ideal for towing a trailer with surge brakes.

- C56515
by:

Hitch arrived within one week as expected. Watched video, read instructions & installed the hitch in 20 min. Had a question about the wiring harness; etrailer customer service answered the phone directly and provided the information. Good product, good price, excellent service,


Comments
Fast delivery. Quick and easy wiring harness installation. Note that for my 2016 Jeep Grand Cherokee, the vehicle computer had to be updated to activate the trailer light function.... yep. I found a dealer that did it for $xx others wanted $xxx. 20 minute job to activate the lights.
Bill B - 05/12/2021


- C56515
by:
2018 Jeep Grand Cherokee

Direct plug and play for my 2015 Jeep Grand Cherokee. There are some things you need to know about the vehicle itself though! Before ordering, look under your rear bumper and make sure the 4/7 pin factory plug is tucked up under there. Different year/trim level grand Cherokees may or may not have the factory wiring. Mine did, so easy plugin. Second, the dealer has to get into the vehicles computer and activate the trailer light controls. So, even after installing you WILL NOT have power until you take it to the dealer and have them activate it. Plenty of info online about it, Google will find it for you. If you are savvy and have a elm327 compatible OBDII hookup, you can pay about $50 for software that will allow you to get in and activate it yourself for cheaper than the dealer. 2018 and newer have a firewall, so the $100 dealer trip might be your best bet.



- C56515
by:
2018 Jeep Grand Cherokee

Simple installation!



- C56515
by:

Holding up great! Unfortunately my trailer had a 4 pole connector, but it was easy to modify to connect with this.



- C56515
by:

I didn't realize this part did not plug into the 7 pin RV socket, instead it connects to the plug that connects to the back of the RV socket. Had I realized that, I would have ordered a different adapter. Since I threw out the packaging, I can't return it. However, the quality of the part is top notch and I would highly recommend it to those who need this type of adapter.


Comments
still dont have a need for it as I bought a different adapter. Might get a vehicle down the road that will need it though.
Greg - 06/02/2016



- C56515
by:

Fit perfectly thank you



- C56515
by:
2014 Dodge Ram Pickup

Purchased this to use on a 2014 Ram 1500 with factory trailer brake set up. The cable worked fine to stop trailer when pressing the brake. But it wouldn't let me manually brake the trailer or control the pressure of the brake from my control.



- C56515
by:
2017 Jeep Grand Cherokee

As ordered, Christmas present for my son for his recently purchased vehicle (in addition to themhitch). We'll know how he likes it at Christmas. It arrived much faster than expected. Thank you.



- C56515
by:

It has work awesome easy to install



- C56515
by:
2017 Jeep Grand Cherokee

Plugged right in to my 2017 Jeep Grand Cherokee factory trailer wiring harness. Jeep dealer had to "flash" computer to recognize trailer wiring, but that was simple and quick. Works great!



- C56515
by:
2014 Jeep Grand Cherokee

Installed in a 2014 jeep grand Cherokee. Factory wiring plug was right under the rear bumper as e-trailer specified. Plug and play, couldn't ask for anything better



- C56515
by:

My only problem was the slow shipping. It took 2 weeks. I think the problem was UPS



- C56515
by:
2015 Jeep Grand Cherokee

Everything fit as it should, plug and play as described! Thanks again Nick



- C56515
by:

Very easy to install



- C56515
by:
2005 Nissan Titan

Part fit my 2005 Titan perfectly and my trailer lights lit up like a Christmas tree. Very pleased.



- C56515
by:
2015 Jeep Grand Cherokee

I'm very happy to buy this through etrailer! The product is 'as is' and works perfectly. Their video is extremely helpful. I'll purchase items from etrailer again.



- C56515
by:
2014 Jeep Grand-Cherokee

Great service, price, and product.


Comments
It has signed flawless since I installed it. Awesome product.Thank you for checking in.
James C - 01/23/2018



- C56515
by:

Easy to install



- C56515
by:

Outstanding really is professional wiri ng



- C56515
by:

Product is excellent



- C56515
by:
2004 Chevrolet Silverado

fantastic



- C56515
by:

Product had everything thing I need to mount to my truck. No cutting or splicing.. I couldn't beat the low price.



- C56515
by:

Plugs rught in but does need to be programmed to vehicle.



- C56515
by:
2011 Chevrolet Silverado

Good Product



- C56515
by:

very nice product. Exactly as described and works well.


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Show More Reviews

Ask the Experts about this Curt Custom Fit Vehicle Wiring

  • 4-Way to 7-Way Adapter for Ford Ranger Towing Trailer with 7-Way
    The adapter you need to go from the 4-way on your 2007 Ford Ranger to the 7-way RV style connector on your trailer is the # 37185. The truck's 4-way will plug right into the adapter and once you connect the 7-way of your trailer to it you'd be ready to tow! I attached a review video for this adapter for you to check out as well.
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • Need Wiring For 2019 Jeep Grand Cherokee Towing A Boat Trailer With 5-Pole Connector
    It sounds like your trailer has a 5-pole flat connector which is very common for boat trailers with surge brakes. I recommend Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 5-Pole Flat Trailer Connector part # C56515 which plugs into the factory tow package port on the Jeep. The other end will plug into the 5-pole connector on your boat trailer. I have attached an installation video for your reference.
    view full answer...
    Image 1 for
  • Which Wires Carry Ground and Reverse Lamp Circuits on 5-Pole Trailer Connector
    On the 5 pole trailer connector provided by the # C56515 T-Connector, the color code/functions are as follows: White Wire Feeds Pin- Ground Connection Brown Wire Feeds Adjacent Socket-Running Lamps Yellow Wire Feeds Next Socket-Left Turn/Brake Lamps Green Wire Feeds Next Socket-Right Turn/Brake Lamps Blue Wire Feeds Final Socket-Feed From Reverse Lamp Circuit I've provided a photo showing this, and I'll also link you to a help article that contains all kinds of information about...
    view full answer...
    Image 1 for
  • Installing a 5-Way Flat Trailer Connector on a 2017 Chevrolet Tahoe
    If you have the round connector behind the rear bumper of your 2017 Chevrolet Tahoe then the Curt 5-Way Trailer Connect # C56515 will plug into it. If your Tahoe already has an existing 7-way trailer connector you can use an adapter like # A75TB.
    view full answer...
  • Adding a 5-Way Flat Trailer Connector to a 2008 Ford F-150 with 4-Way Flat Connector
    Wiring harness # C56515 is primarily for GM vehicles and will not fit a Ford truck. If you already have a 4-Way and need to have a 5-Way then the simplest solution is to use # 20036. All you have to do to get the 5th reverse function is to tap into the reverse light wire behind one of the reverse lights. The 4-Way will just plug in. I have linked a video to the right showing a typical installation for you.
    view full answer...
  • Installing 5-Way Connector on 2005 GMC Envoy
    If your 2005 GMC Envoy is equipped with the factory US round car connector under the bumper (this is likely what your existing 4-Way is plugged into) the Curt T-Connector Wiring Harness # C56515 you referenced will work perfectly to replace it with a fully-functional 5-Way. The reverse circuit pin will be activated upon installation so that it will power the trailer's reverse signal lights. If you don't have this plug on the Envoy and your existing 4-Way is installed in another manner...
    view full answer...
  • Recommended 5-Way Harness For 2002 Chevrolet Silverado With No 7-Way Connector
    Per our fit guide and information, the 2002 Silverado came with a factory 7-way connector at the rear of the vehicle. Since you said you do not have the 7-way, the 5-way connector will need to be hardwired. You will need a circuit tester like part # 3808 to test the wires by function. You can enlist the help of someone to sit in the cab and run through the different functions while you find the correct wires. I recommend the Hopkins Endurance 5-Way Flat Trailer Connector, part #...
    view full answer...
  • Recommended 5-way Flat Connector For 2014 Jeep Grand Cherokee
    There is a quick and easy way to connect a 5-way trailer connector to your vehicle. You can simply plug the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 5-Pole Flat Trailer Connector, # C56515 into your OEM tow package port with no cutting or splicing required. There is no relay needed for this connection, but you may need to take your Jeep to a dealer to have them flash the computer to activate the tow package wiring that is pre-installed.
    view full answer...
  • 4 pole to 5 pole Adapter Recommendation for a 2009 Ford Edge Towing a Trailer with Surge Brakes
    In order to add a 5-Way to your 2009 Ford Edge you can use the 4 to 5-Way adapter # 20036. This will plug into the 4-way you have on your vehicle. The extra blue wire will connect to the reverse light circuit on the vehicle. Normally this adapter is used from hydraulic surge couplers that have an electric lockout feature. I have included a link to the video you mentioned showing a typical installation.
    view full answer...
  • Parts Needed to Convert a 4-way to a 5-way for a Honda Odyssey Towing Surge Brake Boat Trailer
    You are going to need to install a Adapter 4 Pole to 5 Pole # 20036. This product will plug right into your 4-way and then you will run the blue wire from the adapter to your reverse light circuit and then you will have a fully functional 5-way that will allow the trailer brakes to release when you reverse your trailer. I attached an install video for this product to show you how it installs.
    view full answer...
  • Trailer Hitch and 5-Way Wiring Kit Recommendation for 2018 Jeep Grand Cherokee
    The best hitch we have available for your 2018 Jeep Grand Cherokee is the etrailer part # e98901 which has plenty of towing capacity and is mostly hidden as well. For trailer wiring you'd want to start with the part # C56515 which is a 5-way just like what your boat trailer needs. Since you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with a 2-3/4 inch rise or 4 inch...
    view full answer...
  • Trailer Wiring Harness for a 2015 Chevy Colorado that Did Not Come with Factory Tow Package
    The plug you have found on your 2015 Chevy Colorado could be the tow package wiring and there is a chance that they are active. You can use a circuit tester such as # ALL640595 to test the wires while someone sits in the truck and runs through the light functions. If there is power then you might be able to plug in a harness such as # C56515. If the wires are not active you will need to hardwire in a harness such as # 46255 by using a circuit tester to find the correct wires behind the...
    view full answer...
  • 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 # 40376 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...
  • Recommended Fastway Weight Distribution For 2017 Jayco Jay Flight 195RB Trailer
    For your 2006 Buick Rainier and your 2017 Jayco Jay Flight 195RB, the Fastway e2 Weight Distribution w/ 2-Point Sway Control - Round - 6,000 lbs GTW, 600 lbs TW # FA94-00-0600 may be sufficient, however, I recommend bumping up to the # FA94-00-0800. This system will give you the same minimum tongue weight, but will allow for up to an 800 lb tongue weight. Based on the specs for your trailer, if you were loaded to capacity you could have a trailer tongue weight of up to 525 lbs, and that...
    view full answer...
  • 5-Pole Flat Trailer Wiring Harness for 2016 Dodge Ram 1500
    We do offer wiring adapters that allow a vehicle with one type of trailer connector to tow a trailer with a different connector. All such adapters like # A75TB, which converts a 7-way RV style connector to a 5-pole flat, are shown on the linked page. These are fine for the short-term but since adapters mean more connections - and more connections can mean more problems - I suggest instead a 5-pole wiring kit that plugs right in to the U.S. Car connector at the rear of the Ram. You can...
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  • Recommended Wiring Setup for a 2015 Chevy Colorado Crew Cab Without a Tow Package
    I contacted Curt Manufacturing and even though your 2015 Chevy Colorado Crew Cab doesn't have a tow package, the wiring connection point will be up under the bumper area, near the spare tire. You will use the Curt custom fit wiring # C56515. This will give you the 5-way flat trailer connector to power your trailer's signal lights. If it's a 4-way connector then use Hopkins wiring kit # 41155. A mounting bracket, like # 18144, is something to consider because the bracket attaches to the...
    view full answer...
  • Recommended 5-Way Connector For 2002 Chevrolet Silverado And Trailer With Surge Brakes
    To install a 5-way connector on your 2002 Chevrolet Silverado, you will need part # C56515. This plugs into the vehicle harness located under the vehicle behind the bumper. There will be a protective cap on the vehicle harness. Just remove the cap, plug the # C56515, and you will have a 5-way connector at the back of your Silverado. With the 5-way connector, when the vehicle is put in reverse, it will send a signal to disengage the hydraulic brake actuator on your surge coupler. For...
    view full answer...

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Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Lindsey S
Written by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Joshua S
Video by:
Joshua S
Employee Kathleen M
Video by:
Kathleen M
Employee Nicholas E
Test Fit:
Nicholas E
Employee Randy B
Test Fit:
Randy B
Employee Brent H
Test Fit:
Brent H
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
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Employee Isabelle B
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