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

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

Item # C55550
Retail:$68.04
Our Price: $34.58
You Save: 49%
Custom Fit Vehicle 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 existing wiring - no cutting, splicing or tapping required. Converter is made using SMT to ensure superior performance. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C55550 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 (23)
  • Q & A (0)
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CURT Custom Fit Vehicle Wiring - C55550

  • Custom Fit
  • Trailer Hitch Wiring
  • 4 Flat
  • Converter
  • CURT

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connector plugs directly into existing wiring - no cutting, splicing or tapping required. Converter is made using SMT to ensure superior performance.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • 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
  • Includes a tail light converter to ensure that your vehicle's wiring matches that of your trailer
  • Constructed using surface-mount technology (SMT) for consistent, reliable performance
    • Maximizes trailer light yield and intensity while producing minimal heat
    • Ensures superior operation in rough road conditions
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage:
    • Stop/turn lights: 3 amps per circuit
    • Tail lights: 5 amps per circuit
  • Limited 1-year warranty


Installation

This custom-fit T-connector plugs into your vehicle's wiring harness, which is located behind the rear bumper, on the passenger's side.


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.


Tail Light Converter with Surface-Mount Technology

A tail light converter is built into this T-connector. Because most trailers run on a two-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's three-wire system need to be combined so they are compatible with the wiring system of the trailer. This converter combines the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your vehicle operate.


Curt builds each tail light converter using surface-mount technology (SMT). This method of construction involves soldering electronic components directly to the surface of a printed circuit board. SMT eliminates the need for leads, which are used in older through-hole technology. The result is a circuit board that is smaller yet provides more routing area and that offers superior performance, reliability and durability.


Curt SMT Circuit Boards

Circuit boards constructed using SMT have been shown to perform better under rough conditions with excessive vibration than those made using the through-hole method. And where would vibration be more likely to occur than in towing applications? Curt converters also produce less heat, leading to increased durability and longer life. In addition, lower levels of resistance ensure better performance, especially for parts that operate at higher frequencies.


Each Curt circuit board is made using high-quality components that are pieced together in the most technologically savvy fashion, leading to greater predictability and reliability in functioning.



55550 CURT T-Connector - Surface Mount Technology - 4 Wire

Installation Details C55550 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:


Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - C55550

Average Customer Rating:  4.9 out of 5 stars   (23 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connector plugs directly into existing wiring - no cutting, splicing or tapping required. Converter is made using SMT to ensure superior performance.

by:

Received exactly as promised, fit perfectly snd installed easily!



by:

I've never been disappointed with any product from etrailer.com. They are my Go To company for all of my trailer hitch needs.



by:
2006 Kia Sorento

Installation quick and easy.
The folks
at e- trailer, sell quality parts and accessories for your towing needs. Will be back for future purchases. Excellent customer service and quick shipping.



by:

Works exactly as intended, very satisfied with ease of installation and operation. Took less than two minutes to install and haul.



by:
2006 Kia Sorento

I ordered my trailer hitch and wiring harness on Monday afternoon it arrived Wednesday afternoon fit perfect I couldn't ask for anything more. I would recommend etrailers to anybody call Hally.



by:
2005 Kia Sorento

easiest install ever. just pop off the top of the car trailer towing electrical package and plug in the new one.



by:

Great harness it literally was plug n play.
It
works great and if you need a factory harness go nowhere else but here because you will get exactly what you need and want here



by:
Suzuki Reno

I was pleasantly surprised when I went to install the KIA trailer harness. It only took a few minutes and I was going. The delivery time was way faster than I expected. Thank you etrailer.
Gary J from Reno NV



by:

Great product works great and very affordable… I have already recommended etrailer.com to my friends. Thank you



by:

No issues at all with the wire harness



by:
2004 Kia Sorento

The Part snapped right into place and it is like having the original. Hooked my trailer up and all worked well.



by:

installation took about 15 minutes. everything needed was included. good company to deal with.



by:

It took more time removing the plastic cap then to install.



by:

Plug and play just as advertised.



by:

Earl

2/7/2023

It works like it is supposed to.



by:
2005 Kia Sorento

Product fit perfect and install was eas y



by:
2005 Kia Sorento

yes and thanks



by:

Great fit.



by:
2006 Kia Sorento

Easy install, great!!



by:
2006 Kia Sorento

Could us better stick pads



by:



by:
2006 Kia Sorento



by:
2006 Kia Sorento


23
23

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

  • More Reliable Trailer Wiring Harness Recommendation for 2013 Kia Sorento
    It's not an ideal solution, but the best one would be to remove the Curt install harness part # C55550 when not in use. Since most likely you won't be towing when it's snowing you might just plug it in as you need it and then remove it if you don't think you'll be towing for a while.
    view full answer...
  • How To Install a 7-Way Trailer Connector and Trailer Brake Controller on a 2006 Kia Sorento
    In order to install a seven way trailer connector and brake controller on a 2006 Kia Sorento you'll need to start with the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # C55550. This can then be converted to a seven way using the 4 to 7-Way with 4-Way Trailer Connector Adapter part # ETBC7 which also has everything you need to install an electric trailer brake controller like the Curt TriFlex Trailer Brake Controller part # C24VV.
    view full answer...
  • Recommended Trailer Hitch And Wiring For 2005 Kia Sorento
    The trailer hitch I recommend for your 2005 Sorento is the Draw-Tite Max-Frame, part # 75516. This is a Class lll hitch and it has a 2-inch receiver opening. This is a bolt-on installation and requires no welding or drilling for installation. I did some research on your Kia and found on page 5-33 that the towing capacity of your vehicle is 3,500-lbs total if you have brakes on the trailer. If you plan on doing some towing you might be interested in etrailer ball mount kit # 989900. It...
    view full answer...
    Image 1 for
  • Where Does Curt Wiring Harness Install on a 2008 Kia Sorento with Factory Tow Package
    The Curt Trailer Wiring Harness, part # C55550, is actually not a confirmed fit for your 2008 Kia Sorento. It fits models from 2003 to 2006. The correct harness for your 2008 model is part # C56332 as long as you have the factory tow package. I've linked a video of it being instled on a 2014. The connection point is behind the rear bumper, on the driver's side. Once you've made that connection insert the included 10-amp fuse into the fuse holder to complete the install. If you don't...
    view full answer...
  • Will Installing Curt Class III # C13513 Interfere with Spare Tire on 2006 Kia Sorento
    The presence of the hitch will prevent the spare tire from dropping straight downward while it is being lowered. While lowering the spare, you will need to push forward on it until it clears the hitch cross tube, at which point it will drop free. We have the same situation on my wifes Kia Sedona van, and I can tell you from experience that it is not difficult to get the spare off of the vehicle. The procedure will just be a little different than you are used to. If you were planning on...
    view full answer...
  • Will the Curt C55550 Fit a 2009 Kia Sorento?
    The 2009 Kia Sorento will actually take the Curt # C56332. This will plug directly into the 2 ports on the rear driver side of the vehicle. I included an install we did on a 2014 Sorento for reference. The # C55550 is designed to fit a Kia Sorento from 2003 to 2006.
    view full answer...
  • Exhaust and Spare Tire Interference with Hitch Install on 2005 Kia Sorento
    I searched our customer reviews on the hitches available for the 2005 Kia Sorento and wasn't able to find any reported occurrences the exhaust rattling against the hitch for that vehicle. Hitch rattle can occur, because most vehicles use exhaust hangers and isolators that are flexible and allow the exhaust to move around a bit. If this movement allows with hitch too close to the hitch, this flexibility allows you to gently bend some of the exhaust hangers to allow for more space between...
    view full answer...
  • Recommended Trailer Wiring Harness For 2005 Kia Sorento
    The trailer wire harness I recommend for your 2005 Sorento is the Curt T-Connector, part # C55550. This harness plugs into the vehicle wiring behind the rear bumper to give you a 4-way trailer connector. There is no cutting or splicing into the vehicle wiring. I have attached a link to an installation video for this harness on a 2005 Sorento you can check out. When working with electrical connectors I recommend using dielectric grease like part # 11755. This keeps dirt and moisture out...
    view full answer...
  • 4-Pole Trailer Wiring Harness for 2008 Sorento Without Factory Tow Package
    Curt T-Connector 4-Pole Vehicle Wiring Harness # C55550 fits the 2003 through 2006 models years of the Kia Sorento but for your 2008 Sorento that does NOT have the factory tow package instead you will use kit # C59496. An install video is linked for you. This kit includes all parts needed to install a 4-pole harness that will provide basic trailer lighting signals and at the same time protect the vehicle from any risk of damage from short-circuits in a trailer's wiring. If your 2008 Sorento...
    view full answer...
  • Hardwiring a Brake Controller on a 2006 Kia Sorento with Tow Package
    To install the Tekonsha P2 Brake Controller, # 90885, on your 2006 Kia Sorento, you will need a 7 and 4 way Installation Kit, # ETBC7. You will also need Curt Custom Fit Vehicle Wiring, # C55550, if you do not already have a 4-Flat connection at the rear of the vehicle. The 2006 Kia Sorento is not set up for a plug and play installation. Installation is fairly simple. Start with the Curt Custom Fit Vehicle Wiring, # C55550. If you have a 4-Way already, you can skip this step. Installation...
    view full answer...
  • Does Trailer Taillight Converter # C55550 Need Direct Power from Battery
    The extra wire you refer to is almost certainly a power wire that provided a direct power feed from the battery to the original converter. The Curt # C55550 which would be a fit for your 2003 Sorento, doesn't need an extra power wire. It will draw the necessary power through the taillight circuits and as long as your trailer has pretty minimal lighting (such as what would typically be found on a small utility or enclosed trailer), the fact that there's no independent power wire shouldn't...
    view full answer...

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


Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Lindsey S
Written by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B

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