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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 # C56333
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Custom Fit Vehicle Wiring

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Curt Custom Fit Vehicle Wiring - C56333
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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. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance. Call 800-298-8924 to order Curt custom fit vehicle wiring part number C56333 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 with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (204)
  • Q & A (24)
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Curt Custom Fit Vehicle Wiring - C56333

  • Custom Fit
  • Trailer Hitch Wiring
  • Curt
  • 4 Flat
  • 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. Powered converter reduces strain on wiring system and 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
    • Locate connection points behind tail lights
    • Plug in T-connector
    • Run hot lead to car battery
  • Includes powered tail light converter that connects directly to battery to avoid overloading vehicle's electrical system
  • 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: 6 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 driver's-side and passenger's-side tail lights. You will have to remove the tail light assemblies to access this harness. Once you've plugged in the T-connector, run the hot lead up to your car battery. Connect the lead to the included fuse holder, and then connect the fuse holder to the positive terminal on your battery.


Once installation is complete, the 4-way connector will be stowed in an out-of-the-way location within your cargo area.


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.


Powered Tail Light Converter with Surface-Mount Technology

A tail light converter is built into this T-connector. This converter is a circuit-protected, battery-powered unit that bypasses the electrical routes that are used by a basic wiring harness. As a result, there is virtually no draw on your tail light circuits.


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.



56333 CURT T-Connector - Surface Mount Technology - 4 Wire

Replaces 56162

Installation Details C56333 Installation instructions

This Product Fits The Following Vehicles



California residents: click here



Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - C56333

Average Customer Rating:  4.7 out of 5 stars   (204 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. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.

- C56333
by:

Very happy with product. Fairly straight forward to install while watching the tutorial video. I would purchase another product when needed. 714318



- C56333
by:
2009 Dodge Grand Caravan

The video on YouTube led me to etrailer. and also gave me the courage to install it myself. I had originally planned on taking to my local trailer store and letting them do their thing. I saved a couple hundred dollars doing it myself, between the hitch and wiring, and as a first timer, am glad I did. It went well, and I think I will do it again next time. The harness was easy to install, I would have been nice if there was a way around running the hot wire from the back to the front- but that would be a request to Dodge I guess. 551971



- C56333
by:
2015 Jeep Patriot

Wanted a wire harness for my 2015 Jeep Patriot. I ordered one from a parts outfit that said the package would my Jeep perfectly, for 39.00 I got their part and I have no clue what it is and what it fits. I found eTrailer's wed site, found the exact wiring harness I needed, they verified it was a perfect fit. I just installed it on my Jeep in about 30 minutes and it works great. I know where I will go my trailer needs. 551904



- C56333
by:
Jeep Patriot

I ordered a trailer wiring harness for my Jeep Patriot. It arrived on time and in good shape. After installing it on the vehicle a problem arose with the wiring module keeping a relay open causing the right tail light to be on a constant on position. After calling and explaining the situation to etrailer customer service they immediately sent out a replacement harness! They stood by their product without question and made it possible for me to fix the issue with the least amount of headaches. I am extremely satisfied with their response and professionalism shown here. I'd def. continue to use them and their products in the future. 435062



- C56333
by:
2012 Jeep Patriot

awesome product ,,,,,was very easy to install,,VIDEO was a huge help 508164



- C56333
by:
2010 Dodge Grand Caravan

I have a 2010 caravan and I was told I needed this lighting connector, but plan old 4 in a row lighting wire connector is all you needed! and it does a better job! 484631


Comments
Theoretically, a standard 4-pin connector without a taillight converter and direct connection to the battery will work. However, the powered converter is recommended for two reasons. 1 The converter serves to isolate the vehicles sensitive and expensive to repair electrical system system from any short circuits that might occur in the trailer wiring. 2 Years ago, the vehicle manufacturers used heavier-gauge wire for the taillight circuits, so pulling the extra amperage for trailer lights through those circuits wasnt a problem. Now, due to the need to save every ounce of vehicle weight and the rising cost of copper, smaller gauge wiring is used which might not be able to handle the extra load from trailer taillights. The powered converter will draw its power directly from the vehicle battery, providing a reliable power supply for your trailer taillights.
-- Mike L - 03/14/2018

35893

- C56333
by:

Fast service. Exact product purchased. Reasonable price. 911843



- C56333
by:

Plug and play. This is about as easy as it gets and it works great. Super fast shipping on this and the hitch I ordered. 906913



- C56333
by:

super easy to install and after a year there have been no surprises. It just works! 893530



- C56333
by:

877448



- C56333
by:
2010 Chrysler Town and Country

Excelent; just what i need! 877368



- C56333
by:
2016 Jeep Patriot

866550



- C56333
by:
2012 Jeep Patriot

Fast shipment and good quality product. Install was straight forward and there are plenty of easy to follow videos to watch for assistance. I would highly recommend if someone is looking for a wiring harness for their vehicle! 858268



- C56333
by:

Great product...excellent service and communication from etrailer....and of course, fantastic pricing!!!!! 849293



- C56333
by:

Received product and installed with no problem Would recommend to others Thank your 845631



- C56333
by:

The Youtube install videos sold me on this unit. 845407



- C56333
by:

FIT PERFECT EASY ASSEMBLE LOOKS GRE AT 820300



- C56333
by:
2008 Dodge Grand Caravan

This is a direct replacement for the factory installed trailer lighting interface. It is an exact match for my 2008 Dodge Caravan, and contains all the components needed to add trailer lighting or to replace defective parts. 815480



- C56333
by:

Great value price and appears to be a good product. 808285



- C56333
by:
2015 Jeep Patriot

Installed on a 2015 jeep patriot. Product installed and worked exactly as expected. Installation took roughly 30-45 mins solo. The video installation instructions were spot on as well. 800490



- C56333
by:

Connected very easily, works great. 786646



- C56333
by:

This made wiring a breeze 782756



- C56333
by:

Great product! Simple to install! 773605



- C56333
by:

Very well made product. Easy to install! This is the 3rd receiver hitch that I have ordered from etrailer. Never disappointed! Great products! 744639



- C56333
by:

Very impressed with the sales person I ordered from very easy and knew exactly what I needed The shipping and tracking were first rate. Haven't had it installed yet so wait and see on that. Free shipping is the reason I ordered from etrailer.com 725378


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Ask the Experts about this Curt Custom Fit Vehicle Wiring

  • Why is Battery Connection Required to Install Trailer Wiring Harness on 2010 Dodge Grand Caravan
    On your 2010 Dodge Grand Caravan a powered wiring harness is needed to take the amperage draw off of the vehicle's sensitive wiring. The powered harnesses that connect to the vehicle battery use the battery to power the trailer lights. Curt powered harnesses do tend to put constant power on at least 1 circuit even with the vehicle off. this usually isn't an issue unless something is plugged into the 4-Way and drawing power. Since the Curt harnesses are not working for you I recommend...
    view full answer...
  • Wiring Parts Needed to Install Brake Controller in 2013 Dodge Durango Without Factory Tow Package
    We can help you get your Durango ready for towing a trailer with electric brakes. Since you do not have a factory 7-way you will use our # ETBC7 brake controller installation kit along with a 4-pole wiring harness # C56333 to install your brake controller. All you will need apart from these kits is the controller unit itself. I recommend the Prodigy P2 # 90885 for its easy set-up and proven reliability. Several helpful videos and article s are linked to assist you with your installation.
    view full answer...
  • Troubleshooting Converter Box of Trailer Wiring Harness on 2014 Jeep Patriot
    You shouldn't be seeing voltage output unless one of the taillight functions is activated. The fact that you're seeing output, is a dead giveaway that the 12-volt battery feed circuit has internally shorted to the output circuits. This is usually caused by a short circuit in the trailer wiring. The converter is designed to isolate the vehicle wiring from any shorts, so the relatively inexpensive converter gets damaged rather than the more expensive to repair vehicle wiring. You would...
    view full answer...
  • Why Does Curt T-Connector C56333 for a 2009 Chrysler Town and Country Connect to Battery
    The Curt T-Connector you referenced, part # C56333 receives the signals through its T-connection with the tail light assemblies of your Town and Country, but draws the actual voltage to power the trailer lamps directly from the battery. This is done for a few reasons. First and foremost, if the aftermarket trailer wiring harness manufacturers determine that the OE vehicle wiring is incapable of handling the extra amperage of the trailer lights being drawn through it, they will specify...
    view full answer...
  • Does Curt Trailer Wiring Harness # C56333 Require Running Wire to Vehicle Battery
    Yes, the Curt trailer wiring connector part # C56333 that you referenced does require running a wire up to the vehicle battery. This allows your trailer's lights to be powered directly from the vehicle battery and not through the vehicle lighting which will prevents over drawing the taillight circuits.
    view full answer...
  • Recommended Brake Controller and 7-Way for 2012 Dodge Durango
    I have the perfect brake controller setup for your 2012 Dodge Durango that is currently equipped with the 4-Way connector. For the brake controller itself I highly recommend the Curt Echo # C51180. This is a really unique proportional controller that simply plugs into the 7-Way on the Durango and pairs to your smartphone via Bluetooth after downloading the free app. It will automatically activate the trailer brakes at the same time and with the same intensity that you apply to them...
    view full answer...
  • How to Determine if a Curt Wiring Harness # C56333 is Damaged
    The best way to determine if the converter box is bad on something like a Curt Custom Fit Wiring # C56333 would be to check for voltage going into the box on the left turn signal to make sure that voltage is going into the box and then to check it on the outside of the box to see if the voltage makes it through the box. If there is voltage on the in (vehicle) side of the box but none on the out (trailer) side of the box then you know that the problem is inside the box and it should be...
    view full answer...
  • Trailer Wiring Harness C56333 for a 2008 Dodge Grand Caravan Shows Power on the 4-Way All the Time
    The Curt trailer wiring harness # C56333 for the 2008 Dodge Grand Caravan should only show power on the 4-Way when the converter receives a signal from the vehicle tail lights. Constant power indicates a short or possible bad connection. However it is also possible that a small amount of power is coming through since this is a powered converter. It would only be enough to dimly light the trailer lights, if that. If this is what you are seeing, it is normal for this harness. Make sure...
    view full answer...
  • Troubleshooting Curt Wiring Harness C56333 in 2008 Chrysler Town and Country
    Thank you for your recent wiring harness purchase from etrailer. This harness is a plug-and-play type that uses connectors, rather than all separate wires that need to be spliced, for most of its connections to your Town and Country's wiring. The plugs with the yellow wires connect at the driver's-side tail light and those with the green wire connect at the passenger-side. The most common cause for the issue you describe is a simple one: a weak or marginal ground connection on the...
    view full answer...
  • Troubleshooting Curt-T-Connector On 2008 Dodge Grand Caravan
    When testing the wire harness on your 2008 Dodge Grand Caravan, you should only see power on the harness when the converter receives a signal from the tail lights. If you have power all the time then that would indicate a short or a bad connection. You want to make sure the black wire with the fuse holder and fuse is connected to the positive post on your battery. Make sure the white ground wire has been secured to a clean bare metal surface. After you have checked all of the connections...
    view full answer...
  • Recommended Tail Light Converter For 2016 Jeep Patriot
    Yes. You will need a tail light converter like # 118158 to hardwire your system to function properly. If you want to use the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56333 it will come wired to convert from your factory quick connect behind each tail light and draws power from the battery to protect your system.
    view full answer...
  • Recommended T-One 4-Pole Wiring Harness for 2011 Dodge Durango Without Factory Tow Package
    For your 2011 Dodge Durango without factory tow package I recommend the T-One Wiring Harness # 118552 from Tekonsha. This 4-pole wiring kit includes a powered converter which acts like a safety switch to protect the internal wiring inside the truck in the event of a bad short or other wiring fault on the connected trailer. It is a lot less costly to replace a trailer harness kit than the internal wiring in your Durango. This Tekonsha kit installs mostly by just plugging in connectors...
    view full answer...
  • Right Turn Signal Activates Left Turn Signal on a Trailer Towed by a 2008 Chrysler Town and Country
    Both turn signals from the trailer go to the yellow wire? If this is the case then you have identified the problem. Something is mis-wired and we need to correct the issue. On the vehicle side the green wire that plugs in line with the tail light wiring is the right turn signal and brake light. If you test the 4-Way with a circuit tester like # 40376 if needed, the pin at the green wire should have right turn and brake functions. If it does not then test the wires leading into the converter....
    view full answer...
  • Troubleshooting Curt T-Connector C56333 Install on a 2013 Dodge Durango
    You are not getting the flash at the trailer connector, is that correct? The first thing I would recommend you do is test the converter. Activate the right vehicle turn signal, and use a circuit tester like part # 40376 on the green wire on the INPUT of the converter box. Then activate the left turn, and test the yellow wire, again on the input. If you have the signal entering but not leaving the box, it would indicate that the converter box is faulty and should be replaced. If this...
    view full answer...
  • Trailer Lights Work for a While then Stop Using Trailer Wiring Harness on a 2012 Jeep Patriot
    There are a couple of things that could be causing the problem you are having with trailer wiring on your 2012 Jeep Patriot. First, if the trailer has a lot of lights then it is possible that they draw more power than the harness and/or the vehicle is rated for. A dirty or corroded trailer connector could be causing a short and that could cause this problem as well. If the right light is the only one that comes on, but it stays on, that to me sounds like a short and/or possible ground...
    view full answer...
  • Trailer Brake and Turn Signals Stopped Working with Curt Trailer Wiring on 2008 Dodge Grand Caravan
    If you are getting power when the brake or turn signals are on into the Curt wiring harness converter box for # C56333 from the vehicle BUT there is no power on the brake/turn signal pins on the output side with the 4-Way connector that indicates a problem with the converter and the whole harness will have to be replaced. There was likely a short at some point, probably when you were using the harness, caused by moisture or corrosion, even a pinched wire, and the box did what it was...
    view full answer...
  • Bracket Recommendation to Carry 4-Way Connector of Trailer Wiring Harness # C56333
    You can use the 4-way bracket part # 18144 to hold the 4-way connector of the Curt harness part # C56333. This would attach to the bottom of the rear bumper and would do a great job to hold the 4-way when not in use so that it's not dangling behind the vehicle. I attached a picture of this bracket installed in a similar way attached to a rear bumper.
    view full answer...
  • Does 2013 Jeep Patriot Computer have to be Reprogrammed to Install Trailer Wiring Harness
    You should not have to reprogram the computer on your 2013 Jeep Patriot to install a trailer wiring harness such as # C56333. If you want to, you could disconnect the negative battery cable before installing the harness but consult the vehicle owners manual before doing so.
    view full answer...
  • Curt T-Connector Wiring Harness on 2016 Jeep Patriot Not Getting Full Voltage at Plug
    It is possible the harness is malfunctioning on part # C56333. Loss in voltage like this is normally a sign of a weak ground, but it sounds like you already made sure the ground is good, so we'll need to look at the harness. To check the harness, test the wires before the converter to make sure the converter is getting 12 volts. If the wires are getting 12 volts before the converter then we need to check the wires right after the converter. If you are getting 12 volts before and after the...
    view full answer...
  • Recommended Trailer Hitch and Wiring for 2015 Jeep Patriot
    For your 2015 Jeep Patriot, I recommend the Draw-Tite Class III Max Frame Receiver Hitch # 75712. This hitch is custom-fit for your Jeep, meaning there will be no drilling required during installation. This hitch will give you a 2 inch receiver opening with a 525 pound tongue weight capacity and a 3,500 pound towing capacity. I recommend the Draw-Tite hitch because it does not require you to use stabilizing straps for non-trailer loads like the Curt alternative does. I have attached an...
    view full answer...
  • Which Trailer Wiring Harness for 2011 Dodge Durango
    If all you will ever tow with your Durango is a small flat-bed or utility trailer with bare-bones lighting with one stop/turn/running light per side, for example, the standard # C56133 would work for you. If your trailer has additional side marker or clearance lights, or you might have the need to tow a larger trailer with more elaborate lights in the future, you would be better off going with the powered converter, # C56333. Regardless of what you might or might not be towing in...
    view full answer...
  • How to Tow a Motorcycle with a 2008 Dodge Caliber
    According to owner's manual for your 2008 Dodge Caliber the gross trailer (GTW) and tongue weight (TW) rating of your vehicle with the 2.0L I4 engine is 1,000 lbs and 150 lbs respectively. Therefore, I cannot recommend you use this vehicle to haul your motorcycle (206 lbs) and carrier (36 lbs) as this would exceed the tongue weight capacity of the vehicle. The only way I can offer you to haul your motorcycle is on the back of a trailer. In order to use this trailer you would need a trailer...
    view full answer...
  • Trailer Hitch and Wiring Recommendation for 2008 Chrysler Town and Country
    The highest tongue weight capacity trailer hitch for your 2008 Chrysler Town and Country is the Draw Tite part # 75579 which has a tongue weight rating of 400 lbs. Best option would be a small trailer towed with the vehicle and this hitch installed. For that we have trailer wiring part # C56333 for operating the lighting of the trailer. If 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...
    view full answer...
  • 2008 Chrysler Town & Country Left Running Light Stays On Even with No Trailer Connected
    It does sound like there is a problem inside of the converter box for the wiring harness on your 2008 Chrysler Town and Country. To test it you will need a circuit tester such as # 40376 or a meter if you have one. Have someone sit in the vehicle to operate the lights while you test. First test the wires going into the converter box from the vehicle. None should have power when none of the lights are on (except for the power wire on applicable wiring harnesses). If there is power then...
    view full answer...




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Info for this part was:

Edited by:
Lindsey S
Expert Research:
Jameson C
Expert Research:
Adam R
Video Edited:
Joshua S
Video Edited:
Jacob T
Video Edited:
Chris R
Installed by:
Cole B
Updated by:
Sarah W
Updated by:
Kristina F
Updated by:
Isabelle B
Written by:
Amanda M
Test Fit:
Shane H
Test Fit:
Robert C
Video by:
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