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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 # C56153
Our Price: $73.73
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Custom Fit Vehicle Wiring

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Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-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 C56153 or order online at 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 (10)
  • Q & A (0)
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CURT Custom Fit Vehicle Wiring - C56153

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

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


  • 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 points behind tail lights
    • Plug in T-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


  • Maximum amperage:
    • Stop/turn lights: 3 amps per circuit
    • Tail lights: 6 amps per circuit
  • Limited 1-year warranty


This custom-fit T-connector plugs into your vehicle's wiring harness, which is located behind the driver's-side and passenger's-side tail lights. You will have to remove the tail light assemblies to access this harness.

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 plugs 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.

56153 CURT T-Connector Vehicle Wiring Harness with 4 Pole Trailer Connector

Installation Details C56153 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 - C56153

Average Customer Rating:  4.5 out of 5 stars   (10 Customer Reviews)

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

Chevrolet Volt

Everything was easy except running the power wire to the front battery and the self-adhesive pad wouldn't stick.(dried out). I used some loctite power grab. Instructions were a little vague too. Wish they had a video like for my Volt.


The hitch and the wiring harness both fit perfect with no modifications necessary. The instructions were very clear and straightforward. I would defiantly recommend this setup.


2/9/17 I had my mechanics put it on for me they said the trailer hitch went on fairly easy but the wire harness was a bear took longer to put the wiring harness on the trailer hitch. Still have to get the wiring harness into the trunk it may take a little time also got high hopes successful future

Hyundai Veloster

For the most part a very painless installation. Very clear instructions. Simple connections at the rear of the vehicle. Only problematic thing was running the main power from the front of the car to the back and even that was readily facilitated by the CONDUIT that is on the underside of the Veloster. The tricky part will be the actual positioning of the connection where you attach to the trailer connector. Nothing to do with the design of the system but of the vehicle itself. The center exhaust on the Veloster kind of makes for a very hot hitch for sure!


Plug and play was easy,hardest part was running a power wire from switched ignition feed

2014 Hyundai Veloster

My order arrived within 2 day. This product came with the instructions that were very easy to understand and the installation was as simple as the instructions showed . I will order again if I ever need anything else.


Easy install, worked great!


Perfect fit




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

  • Tow Bar Wiring Recommendation for 2016 Hyundai Veloster
    Since trailer wiring is not reversible to allow it to be used in a flat towing setup you'd have to go with tow bar wiring that does fit your 2016 Hyundai Veloster. For lighting you can use the diode kit, # RM-15267, and not have to worry about cutting into the taillight housing. This will splice into your taillight wiring to allow your tow vehicle to control the taillight assemblies of the towed vehicle. This comes with a round 6-way connector that you will install on the front of your...
    view full answer...
  • Troubleshooting Tow Ready Custom Fit Vehicle Wiring Harness # 118259 for the 2013 Cadillac SRX
    The TowReady wiring harness for the Cadillac SRX that you referenced, part # 118259, is intended for vehicles that have the factory tow package installed. Thank you for your recent purchase of a hitch and related items along with this wiring harness. The exact components that constitute a factory tow package will vary among auto makers and can also vary among different vehicle models and model years. Sometimes wiring may be put in place at the factory but may not be connected at one or...
    view full answer...
  • Trailer Hitch Fit for 2015 Hyundai Veloster Turbo
    Good question. You can tow with a vehicle up to whatever trailer weight its manufacturer says you can. Your owner's manual should indicate towing capacity. I checked an online edition of the manual and towing the car when it is disabled is covered starting on page 6-27 but there is no mention made to trailer towing. You will want to check the printed manual supplied with the car to confirm if it can tow and if so how much trailer weight. Sometimes a hitch that is made for a given car...
    view full answer...
  • Trailer Wiring Recommendation for 2013 Hyundai Veloster
    For trailer wiring confirmed to fit your 2013 Hyundai Veloster the Curt kit part # C56153 is the recommended kit that will work well.
    view full answer...
  • Is Drilling Required to Install Curt Trailer Hitch # C11254 on a 2012 Hyundai Veloster
    To install the Curt trailer hitch # C11254, on your 2012 Hyundai Veloster, there is some drilling involved but only to enlarge existing holes on the frame where the hitch will bolt into place. Take a look at the instructions I have linked for you. This is a Class I hitch and it has a gross trailer weight of 1,000 pounds and a tongue weight capacity of 100 pounds. Consult your vehicle owners manual to determine if you can tow anything with the hitch. It comes with a ball mount, hitch pin...
    view full answer...
  • Recommended Trailer Hitch, Wiring, and Ball Mount for 2016 Hyundai Veloster
    Starting with the trailer hitch, the Curt Class I Round Tube Receiver Hitch # C11254 that you referenced is confirmed to fit your 2016 Hyundai Veloster and will work well. This Class I hitch will provide you with a 1-1/4 inch receiver opening and features a towing capacity of 1,000 pounds. I also recommend verifying the vehicle's capacity by checking your copy of the owner's manual. You will always need to follow whichever limit is lower, the vehicle's or the hitch's. One thing of note...
    view full answer...
  • Does Curt C56153 T-Connector Have Provision for Reverse Lamps on 2016 Hyundai Veloster
    The Curt # C56153 T-Connector does include a power wire and fuse that would need to be run under the vehicle to the engine compartment so it can connect to the positive battery terminal. Unfortunately, there isn't a provision for running the reverse lamp circuit through the converter. That connection would need to be made separately by tapping into the reverse lamp circuit.
    view full answer...
  • Compatibility of Yakima Bowdown and Thule Hull-a-Port Kayak Carriers on Roof Rack of 2013 Veloster
    You are correct that the short curved roof line on your 2013 Hyundai Veloster poses a challenge to fitting both roof racks and some roof-mount accessories such as your Yakima Bowdown and Thule Hull-a-Port kayak carriers, as well as other items such as cargo boxes. Also, operation of the rear hatch and optional glass sun roof may be interfered with by either a roof rack itself or by certain accessory items installed on it. I suggest that your first step be a confirmation with your local...
    view full answer...
  • What Trailer Hitch Is Recommended For My 2013 Hyundai Veloster Turbo
    When it comes to installing a trailer hitch on your 2013 Hyundai Veloster Turbo The Curt Trailer Hitch Receiver - Custom Fit - Class I - 1-1/4 inch # C11254 is confirmed to fit your vehicle. The hitch can tow up to 1,000 pounds and has a tongue weight up to 100 pounds, so you will not be able to haul your 200+ pound dirt bike, but you could tow the dirt bike on a trailer using The Curt Class I Drawbar - 5 inch Rise - 11-9/16 inch Long - 2,000 pounds # C45025 and attaching The 2 inch Hitch...
    view full answer...
  • Trailer Hitch and Wiring for a 2014 Hyundai Veloster Turbo
    Yes, Curt trailer hitch # C11254 will also fit your 2014 Hyundai Veloster turbo model. I have linked a video showing an example installation for you. If you want to tow with the hitch then the correct ball mount is # C45521. For a 1-7/8 inch ball use # 19256 and for a 2 inch ball use # 19258. For trailer wiring you can use # C56153. If you want to use the hitch for an accessory such as a bike rack or cargo carrier then you have to make sure the accessory is rated for use with a Class...
    view full answer...
  • Transporting Watercraft with 2014 Hyundai Veloster
    The only available trailer hitch that is confirmed to fit your 2014 Hyundai Veloster is the Curt Class I Round Tube # C11254. This Class I hitch features a 1-1/4 inch receiver opening and has a 100 pound tongue weight capacity. I have attached an installation video on your Veloster that you can use for reference. Please note that Curt does require that a stabilizing strap like # 18050 be used for any non-trailer load. The Draw-Tite Class III Max-Frame Trailer Hitch Receiver # 75579 that...
    view full answer...
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  • Trailer Hitch for 2013 Hyundai Veloster
    With such a light trailer you'd probably be okay, but be aware that in the owner's manual, Hyundai states that towing a trailer with the 2013 Veloster isn't recommended. If you decide to tow the trailer, you'll need the following: Class I trailer hitch, part # C11254 Trailer wiring harness w/ 4-pole trailer connector, part # C56153 Ball mount, part # C45521 Trailer ball, part # A-80 for a 1-7/8 inch ball or # A-82 for a 2 inch ball Hitch pin and clip, part # PC2 To see a hitch install...
    view full answer...
  • Trailer Hitch and Wiring for 2016 Hyundai Veloster
    The Curt Trailer hitch part # C11254 that you referenced is a confirmed fit for your 2016 Hyundai Veloster and has the towing capacities of 1,000 lbs total trailer weight and 100 lbs tongue weight. That means a trailer that you want to tow would need to be pretty lightweight. You also would need to check the owners manual of your vehicle for the same capacities and be sure to stay under the lowest rated component in your setup. For a ball mount you would want the part # C45572 for a 2...
    view full answer...

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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Lindsey S
Updated by:
Lindsey S
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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