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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 # C56349
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Custom Fit Vehicle Wiring

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C56349 - 4 Flat Curt Trailer Hitch 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. 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 C56349 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 (46)
  • Q & A (21)
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Curt Custom Fit Vehicle Wiring - C56349

  • 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 a tail light converter to ensure that your vehicle's wiring matches that of your trailer
    • Powered module 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 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 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.


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.


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.



56349 Curt T-Connector - Surface Mount Technology - 4 Wire

Replaces 56282

Installation Details C56349 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 - C56349

Average Customer Rating:  4.8 out of 5 stars   (46 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.

- C56349
by:

Quick easy install !! 614765



- C56349
by:
2020 Toyota Tacoma

883663



- C56349
by:

Connections were straight fwd, and simple to install. 876064



- C56349
by:

Fast delivery 871439



- C56349
by:
2020 Toyota Tacoma

Great Product, Easy Install. You really can't screw it up. All the electrical fittings only fit where they are supposed to go. 855014



- C56349
by:

Fast delivery, super easy install 844371



- C56349
by:

Shipped quickly, super easy install. 844367



- C56349
by:

Worked out good, it does need some kind of cover so you don't have dangling wire 829850



- C56349
by:

Video on YouTube make this very easy to install. Happy with the product. 819342



- C56349
by:

Very easy to install.. comes with everything you need and simple to follow instructions.. the longest part of the install was running the wire to the battery.. only because I wanted to follow all existing wiring and zip tying probably more then was required.. 816696



- C56349
by:

Harness installed without issue. 815699



- C56349
by:

Great service, right product just as de scribed. 812017



- C56349
by:

Excellent customer Service Greg, I just wanted to THANK YOU AGAIN for an outstanding customer service. You were extremally knowledgeable and also professional. You pointed me to the right part although I ordered the wrong part and were nice enough to correct my mistake with grace. Outstanding customer Service and also knowledgeable as well. Thank you again. 803722



- C56349
by:

The harness was delivered in a timely manner and it was complete. This will be much better than soldering. Thank you 803368



- C56349
by:
2016 Toyota Tacoma

Great product easy to install 796072



- C56349
by:
2018 Toyota Tacoma

The hitch assembly Item C13264 fit perfectly and was easy to install. The wiring kit C56349 was easy to install. Running the 12-GA power cable took some time. the only down side was, I didn't receive the accessory kit with the wiring harness. luckily I had the: tie strips, 10-amp fuse, inline connectors, double sided tape and electrical eyelet on had to complete the job. 793210



- C56349
by:

Received my order very quickly. And installed itsame day. The instructions made installation a breeze. Extremely satisfied with how everything came out. 792490



- C56349
by:

Excellent product. Very easy to install 770202



- C56349
by:

The wiring harness hooked up just as described. Took me less than a hour to hook everything up. Thank you e trailer! 769983



- C56349
by:
2017 Toyota Tacoma

Everything is in the kit, takes a little while to install. No problems. 765227



- C56349
by:

Everything snapped into place as noted in directions. Good quality product. Makes life simple! 761958



- C56349
by:

Very easy to install seems like Avery good product 739551



- C56349
by:

This wiring harness fits great. It does take a little time, mainly because you have to run a hot wire all the way to the battery in the front. Why you can't use a source near the rear is not clear. But, overall I'm very pleased with it. 720571



- C56349
by:

This was 1 of 6 items ordered separately. All 6 were delivered quickly and customer service was super fast following up with forwarding info. Can not say enough about this company first class I will continue due to purchase my auto and truck needs from them. 718633



- C56349
by:
Toyota Tacoma

Fit Tacoma perfectly. Installed power converter behind tail light housing——plenty of room and out of the elements. 695362


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Show More Reviews

Ask the Experts about this Curt Custom Fit Vehicle Wiring

  • 4-Way Trailer Connector Recommendation and Ball Mount Kit For 2018 Toyota Tacoma
    I am happy to help you with the wiring you need to tow your boat with the 2018 Toyota Tacoma. I recommend Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # C56349 because it is a bit easier to install compared to the other options. It is a 4-way trailer connector to plug in your boat trailer to power the lights. Since you are planning on towing, I recommend etrailer.com ball mount kit part # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise...
    view full answer...
  • Recommended Wiring Harness For 2017 Toyota Tacoma
    Both wiring harnesses that are confirmed to fit your 2017 Toyota Tacoma require a battery line being added. This is really to protect your wiring system. The powered converter reduces strain on a factory system and protects the system. I know it seems like more work to add a power line to the battery, because it is more work, however the work will give you peace of mind knowing that your converter will function correctly and keep your factory wiring from malfunction which isn't always...
    view full answer...
  • Would Trailer Wiring Cause Vehicle Blinkers to Hyperflash
    Trailer wiring should not cause hyperflashing on vehicle taillights. It would be related to the LED taillights you installed on your trailer. Most likely the resistors on the new lights aren't the correct value. You can test this by going back to the standard taillights and leaving the trailer wiring installed.
    view full answer...
  • Recommended Trailer Wiring Harness for a 2017 Toyota Tacoma
    I do have a plug-in trailer wiring harness that will fit your 2017 Toyota Tacoma but the plug you are referring to is not used for the trailer lights. For your Tacoma, I recommend the Curt T-Connector Vehicle Wiring Harness part # C56349 which actually plugs in behind the taillights as you can see in the attached instructions. This kit will provide you with a 4-way trailer connector. If you need a 7-way trailer connector then in addition to the Curt harness you are also going to need...
    view full answer...
  • 4-Pole Trailer Wiring Harness for 2017 Toyota Tacoma
    We do offer two choices in a plug-in T-connector 4-pole wiring harness for your 2017 Toyota Tacoma. Both are intended for trucks without the factory tow package. Please note that the term 'tow package' does not always mean the same thing. What is included in a 'tow package' can vary considerably from auto maker to auto maker, between models and even between model years. In our experience a Tacoma will either have a complete wiring set-up with wiring and trailer connector at the back...
    view full answer...
  • Right Turn Signal/Brake Light Stays On with Curt Trailer Wiring Harness on a 2016 Toyota Tacoma
    What you are describing sounds like a short in the converter box for Curt wiring harness # C56349 for your 2016 Toyota Tacoma. Since this is the second time this has happened it could indicate that there is something on the trailer that is causing the box to short out so I do recommend inspecting the trailer wiring and fixing any broken or pinched wires or anything else that seems problematic. I also recommend switching to the Tekonsha harness, # 118685, because we hear about less problems...
    view full answer...
  • Trailer Wiring Harness Fit and Installation on 2016 Toyota Tacoma
    The Hopkins Wiring Harness 33355 that you referenced used to be a confirmed fit for your Tacoma, but the manufacturer made some changes to the harness and it is no longer a fit for the 2016 Toyota Tacoma. For a trailer wiring harness that is confirmed to fit your 2016 Toyota Tacoma, you will want to use the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56349. This harness will indeed plug into your Tacoma's factory wiring behind the driver and passenger...
    view full answer...
  • Installing a 7-Way Trailer Connector on a 2017 Toyota Tundra with 4-Way Flat Connector
    Using the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector, # C56349, will provide you with a great start to your 7-way. To connect the Hopkins/Pollak 7-Pole and 4-Pole Connector, # HM40975-11998, to the Curt T-Connector, # C56282, you would have to first cut the green, yellow, and brown wires of the 4-way connector. Then, using the included butt connectors, you would match up the wires on the 4-way and also add the following from the Hopkins connector (Red...
    view full answer...
  • Wiring for Trailer to Match 4-Way on Tow Vehicle
    If you are installing a 4-Way like the Curt T-Connector # C56349 on your 2016 Toyota Tacoma (that you inserted for your vehicle info) then you need to make sure the wiring on your trailer matches the wiring configuration of this 4-Way (see attached). If you don't already have wiring on your trailer then I recommend using a kit like the Optronics # A35W42B which comes with a 4-Way and 35' of wiring that you'd just run to your lights: White - ground Brown - tail lights Yellow - driver...
    view full answer...
  • Parts Needed to Install 7-Way and Brake Controller in 2020 Toyota Tacoma
    You will need to start with a 4-way installed on your 2020 Toyota Tacoma (if you do not have one). For that you would want the # C56349. From there you would need to convert the 4-way to a 7-way so that you can install the brake controller. For that you will want the Brake Controller Install Kit and 7-Way Adapter part # ETBC7. I attached installation instructions and an install video for this product as well. For a brake controller I would recommend the iCommand part # 5535. This...
    view full answer...
  • Trailer Hitch and Wiring For 2018 Toyota Tacoma To Tow Boat Trailer
    I recommend Draw-Tite Max-Frame Trailer Hitch Receiver part # 75238 for the 2018 Toyota Tacoma because the powder coat is a little better compared to the other options with the e-coat base. The rust preventive e-coat is helpful if the hitch is exposed to salt water when you tow the boat trailer. It also is a concealed cross tube design so it will look nice on the Toyota Tacoma. The only portion that is visible of the hitch once installed is the receiver tube. I am not sure what you mean...
    view full answer...
  • 2016 Toyota Tacoma TRD Sport 7-Way Recommendation to Fit Bumper Cut Out
    You are on the right track for sure to install the # HM40975-11998. You would first need to start with a 4-way like part # C56349 and then to convert it to a 7-way you would need to cut off the 4-way of this hardwire and then hardwire it to the part # HM40975-11998.
    view full answer...
  • Installing Tekonsha Brake Controller on a 2016 Toyota Tacoma Without Factory Tow Package
    I can help you understand your 2016 Toyota Tacoma a little more and help you install that Tekonsha brake controller. Since your Tacoma doesn't sound like it came with the factory 7-way then you will not have a plug in location for your brake controller like the # 3031-P uses, this is typically part of the upgraded "tow package". The good news is you are off to a good start with the Curt 4-way wiring harness # C56349. We just need to take that connection and adapt it to the 7-way...
    view full answer...
  • Installation of a 7-way Trailer Connector on a 2016 Toyota Tacoma Without the Factory Tow Package
    Since you do not have the factory tow package on your 2016 Toyota Tacoma, you will first need the 4-way which the # C56349 will give you. To adapt that 4-way into a 7-way you will be able to use the Hopkins # HM40975 and the # HM40985 you mentioned, but I highly recommend the # ETBC7 instead, because it will include all the wires and adapters you will need. I have included a Help Article and install video on the ETBC7 for your convenience. If you would rather stick with the Hopkins...
    view full answer...
  • Availability of a Trailer Hitch for a 2017 Toyota Tacoma
    I recommend the Curt Class III Trailer Hitch Receiver, # C13264, This hitch will accepted a 2 x 2 inch ball mount. The Curt hitch is designed to fit your Tacoma and will require no drilling when installing on your vehicle. If you are planning to tow trailer, then you will also need a vehicle wiring harness, like # C56349. This wiring harness will allow you to connect a 4-pole flat connector to your Tacoma. The harness will allow to connect your trailer's light to your vehicle. If...
    view full answer...
  • Trailer Hitch and Wiring for a 2017 Toyota Tacoma
    Yes, the Draw-Tite trailer hitch # 75238 is a fit for your 2017 Toyota Tacoma. We have determined that the hitch fits from the 2016 Tacoma carry over to the 2017 model year as well. If you plan on doing some towing I recommend 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 drop. It also includes a 1-7/8 inch ball, 2 inch ball, hitch pin with clip, and a storage bag. If the ball mount kit...
    view full answer...
  • Installation Of Brake Controller On 2016 Toyota Tacoma
    If you have a factory 7-way on your Tacoma, you can easily connect the brake controller by using a plug-in adapter like part # 3031-P. You simply plug one end into the back of the controller and the other end plugs into the brake controller port under the dash. If you do not have a factory trailer connector on your Tacoma you will first need to install a 4-way harness like part # C56349. You just plug this harness into the connection points behind the tail lights, and then run a hot...
    view full answer...
  • Recommended Brake Controller Plug-In Adapter For Prodigy P2 On 2016 Toyota Tacoma
    If you have a factory 7-way connector at the back of your 2016 Tacoma the correct brake controller plug-in wiring adapter for your Tacooma is part # 3031-P. This adapter is designed to work with the Tekonsha P2, part # 90885 and plugs into the port located under the dash. If you do not have a factory 7-way connector there will be no port to plug an adapter into and you will need to first install a 4-way connector like part # C56349. You will then need to install part # ETBC7....
    view full answer...
  • Adding a 7-Way Trailer Connector and Brake Controller to a 2016 Toyota Tacoma without Tow Package
    To install a brake controller on your 2016 Toyota Tacoma you will first need a 4-Way trailer connector # C56349 unless the truck already has one. Then you will need to install # ETBC7 which provides the 7-Way, wiring, and accessories that will be needed to hardwire in the brake controller. I have included the best links that show and explain the ETBC7 installation for you. Since the ETBC7 is a hardwire install on any vehicle you could really watch any of the videos but I chose to link...
    view full answer...
  • 7-Way Adapter Recommendation for 2016 Toyota Tacoma
    If you have the 4-way harness part # C56349 installed on your 2016 Toyota Tacoma you could cut off the 4-way and wire it to the # HM40975-11998 if you wanted but an easier option would be to use the # 37185 in place of the Hopkins. It allows you to just plug the 4-ways together and then run the additional circuits as needed to give you a 7-way. If the goal is to install a brake controller you instead would wan the part # ETBC7 which also includes the 37185 but comes with everything...
    view full answer...
  • Recommended 4-way Trailer Wiring for 2017 Toyota Tacoma
    I choose the Tekonsha, part # 118685, over the Curt, part # C56349, but they're extremely similar. The only reason I choose the Tekonsha is because it has a higher amp capacity than the Curt. This can help from overloading the harness if your trailer has a lot of lights that draw a substantial amount of power. It's not a significant difference but you never know if you may need the higher capacity at some point.
    view full answer...




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Info for this part was:

Edited by:
Lindsey S
Expert Research:
Michael H
Expert Research:
Jameson C
Video Edited:
Jacob T
Installed by:
Cole B
Updated by:
Sarah W
Updated by:
Kristina F
Updated by:
Isabelle B
Written by:
Amanda M

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