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  1. Custom Fit Vehicle Wiring
  2. CURT
  3. 4 Flat
  4. No Tow Package
  5. Trailer Hitch Wiring
  6. Vehicle End Connector
THIS ITEM IS NOT A FIT FOR
2003 Honda Accord
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CURT

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

Part Number: C56347
In Stock
$68.01
Retail:$109.95
You Save: 38%
Custom Fit Vehicle Wiring
Not Confirmed to Fit

2003 Honda Accord

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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C56347 or order online at etrailer.com. Free expert support on all CURT products. Great prices and Fastest Shipping for Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (29)
  • Q & A (0)
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CURT Custom Fit Vehicle Wiring - C56347

Highlights

  • Custom Fit for Your Vehicle: Works with your vehicle's wiring
  • Tow Without Factory Prep: 4-way flat connector powers trailer lights for safe towing.
  • Plug-and-Play Install: T-connector plugs in line with tail light wiring—no splicing needed.
  • Reliable Power Feed: Black wire connects to battery through fuse holder for steady light power.
  • Protects Vehicle Circuits: Powered converter draws trailer load from battery, not tail lights.
  • Hidden, Weather-Tight Setup: Sealed connectors keep wiring secure and out of sight.

Features to know about

Installs Without Cutting or Splicing: Plug-In T-Connector

Wiring a trailer doesn’t have to mean chasing down factory wires. The Curt T-Connector plugs in line with the vehicle’s tail light connectors, so you don’t have to splice or modify anything. It’s a clean, straightforward way to get a 4-flat connection for your trailer lights without altering the vehicle wiring.

Protects Vehicle Circuits: Powered Converter with Dedicated Battery Lead

The harness includes a powered converter that draws power directly from the vehicle battery through a fused black wire. That means the trailer lights run off their own dedicated circuit, protecting the vehicle’s sensitive electronics from overload. The converter only takes signal input from the tail light circuits but provides its own power to illuminate the trailer lights safely and reliably.

Ready for Standard Trailer Lighting: 4-Flat Connector Output

Once installed, the 4-flat connector delivers all basic trailer light functions—running lights, turn signals, and brake lights. It’s the standard setup used on most small and mid-size trailers, letting you connect and tow right away without any adapters or extra wiring work.

Built for Vehicles Without a Factory Tow Package: Complete Plug-and-Lead Setup

For vehicles that didn’t come prewired for towing, this kit fills in the gap. The plug-in connectors, powered converter, and included fuse holder give you everything needed to create a proper trailer wiring circuit from scratch. It’s purpose-built for vehicles without a tow package, making it a dependable option for adding trailer lighting capability from the ground up.

Specs

Electrical Specifications

  • Connector type: 4-Pole Flat
  • Converter type: Powered Converter
  • Vehicle end connector: Plug-In
  • Wiring style: Plug and Lead
  • Compatibility: Vehicles without tow package

Side-by-side comparison chart of multiple Curt trailer wiring harness connectors, with technical callouts showing differences in plug designs and connector layouts.

Design Features

  • Mounting style: Hidden
  • Product category: Trailer Hitch Wiring

56347 CURT T-Connector - Surface Mount Technology - 4 Wire

Replaces Curt C55503

Similar to Tekonsha 118410 and Hopkins HM11143955

Installation Details C56347 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:

Ratings & Reviews

4.6

29 reviews
5 Stars
(20)
4 Stars
(8)
3 Stars
(0)
2 Stars
(0)
1 Star
(1)
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by:
This is my second one. My van bottomed out breaking a hitch mounted brake light and ruined my original box. I guess it shorted out when the light broke.

These are easy to install if you have basic mechanical skills and tools.
Guitarbilly profile picture

Guitarbilly

8/9/2026

It is still working properly! Definitely recommend!

Jerred H. profile picture
Etrailer Expert

Jerred H.

8/9/2026

@Guitarbilly That's great to hear! Thanks for coming back and sharing the feedback. I really appreciate you taking the time to share that.
by:
Easy to install
by:
The instructions for this confused me at first. I watched a video on how to install it, and followed those instructions after looking at a picture that came with the harness, it seemed to match. I then installed the blue/green wires on the left side and attempted to run the Yellow/White to the other side, but it was not long enough to reach. I then checked the written instructions and it said to do the reverse, so good thing it did not work the first time.
Installing the ballast was a bit of a problem. The picture showed it double sided taped to the back of the lens cover on the left side,but after attaching it there, I was unable to put the light back into place. I managed to move it down and squeeze it into the gap under the light, between the bumper and the frame, and then everything fit.
Once that was in place, all the rest installed easily, and worked with the boat no problems. I would blame my initial installation error on simple laziness. I hate reading instructions unless I really need to. ;)
Good product, working perfectly so far.
by:
Very straightforward installation.
by:
The products I received , trailer hitch ,and wiring harness , were perfect . Bolt holes lined up perfectly. Wiring harness ,and directions were very simple to read , and install went according to plan . Very Happy. Products , were delivered in a timely manner. Great.
by:
Great trailer hitch. Fit perfect. Installation video was very helpful. Delivery was in two days! I will definitely buy from you again. I wish all of my purchases were this easy.
by:
I had to have a company UHaul install this unit as they installed a hitch
Eugene C. profile picture

Eugene C.

10/6/2021

Installed at U Haul rental company .Works great. Great product

by:
I installed wiring harness my self and everything worked perfectly.
Shipping came as planned too.
Thanks
by:
2014 Kia Sedona
Great product,fast shipping,over all I will be buying from etrailer again
by:
Good instructions,easy to install works great have had no problem
by:
All the trailer needs I've had e-trailer always has what I need. Thankx
by:
2008 Kia Sedona
My package for the Curt trailer wiring assembly for the 2008 Kia Sadona was missing the wire connectors, the fuse, the ring connector for the 12GA wire, the zip ties, and the two sided tape. I was not happy with it at all!
Brooke M. profile picture
Etrailer Expert

Brooke M.

10/6/2021

Thankyou for bringing this to our attention. Our customer service team should be reaching out to you in the near future.

by:
Just as advertised. Easy to install. Works perfectly.
by:
Kit was totally inclusive and super easy to install. Also, it was very reasonably priced and delivered quickly. I was very satisfied with the product and the service.
by:
Great product a little tricky to run wires without being seen
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2012 Kia Sedona
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2011 Kia Sedona
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2008 Kia Sedona
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2012 Kia Sedona
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Show More Reviews

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

  • Brake Controller And Brakes Recommendations For 2010 Kia Sedona And Trailer
    Thank you for the spec sheet on the axle you have on your trailer. I spoke with my contact at Dexter and they told me that you do not need to replace your axle, you can just upgrade the one you have. They told me that you have the brake mounting flange mounted on your axle so what you will want to do is add a new hub and drum, the brakes, and wiring for your trailer, and you should be good to go. The hub and drum I recommend is the etrailer.com Trailer Hub Assembly, part # AKHD-545-35-G-K....
    view full answer...
  • Easier to Install Trailer Wiring Recommendation for 2009 Kia Sedona
    We have pretty easy to install trailer wiring kits that fit your 2009 Kia Sedona like the Tekonsha part # 118410 which does not require splicing into your vehicle wiring but we don't have a simple plug and play kit that would plug into a port at the rear of your vehicle. I attached an install video for this kit for you to check out as well.
    view full answer...
  • Does Trailer Wiring Harness for 2009 Kia Sedona have to be Connected to the Battery
    You will need to attach the trailer wiring harness power wire from # C56347 to the battery on your 2009 Kia Sedona. No other circuit is recommended. This is because of several factors: 1) It is not tested with any other circuit 2) Deviating from the instructions can result in a voided warranty 3) If tapped into the fuse panel you will loose some of the circuit protection If they tested it with other circuits, that would take care of 1 and 2 but 3 still remains. The issue is that the...
    view full answer...
  • What is the Correct Trailer Wiring Harness for a 2009 Kia Sorento Without Factory Tow Package
    The connection points for the Curt trailer wiring harness, # C56347, are designed to plug in line with the vehicle tail light wiring connectors. I have included a link to the installation instructions for you.
    view full answer...
  • Trailer Wiring Harness for a 2011 Kia Sedona
    On the product page for wiring harness # 118410 there is a section called specs below the description. The warranty for this item is listed there and is a 1-year limited warranty. Since you are having repeated problems with the wiring harness there may be some outside factor contributing to their failure. A short circuit on the trailer wiring, corrosion on the trailer connectors, having too many lights that overdraw the harness could all be possibilities. If the vehicle just does not like...
    view full answer...
  • Parts Needed To Install 7-way Connector and Curt Echo Wireless C51180 On 2012 Kia Sedona
    I would be happy to help! The Curt T-Connector # C56347 and # C89KR you were looking at are both confirmed to fit your 2012 Kia Sedona and will both give you the 4-way connector you need. There is not major difference between the harnesses so I recommend going with the most cost effective option at the time. Moving on to adding a 7-way connector to use the Curt Echo Wireless # C51180 I recommend the # ETBC7L which was designed specifically for the Echo. The # ETBC7L will plug into your...
    view full answer...
  • Recommended Hitch and 6-Way Wiring Harness for 2010 Kia Sedona
    The recommended custom fit wiring for your 2010 Kia Sedona with a short wheel base is the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56347. This part provides a 4-way flat trailer connector at the back of your Kia to power your trailer's signal lights. It sounds like you have a 6-pole connection on your trailer so you will need the 6-pole adapter # 37175. You will be able to retain use of the 4 pole connector, and the mounting bracket is included as...
    view full answer...
  • Curt Powered Taillight Converter C56347 Installation on 2014 Kia Sedona
    The black wire does indeed need to be connected to the positive battery terminal, through the supplied fuse holder. The converter box receives the signals from the taillight circuits, but it gains the voltage necessary to illuminate the trailer lights from the black power wire.
    view full answer...

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


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Dustin K
Video Edited:
Dustin K
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B
Employee Amanda M
Written by:
Amanda M

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