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  1. Custom Fit Vehicle Wiring
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FITS 2021 Toyota Tacoma
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
Retail:$111.95
Our Price: $62.23
You Save: 44%
Custom Fit Vehicle Wiring
Confirmed to Fit
2021 Toyota Tacoma

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Call etrailer.com at 1-800-940-8924 for expert service. We are your Toyota custom fit vehicle wiring experts, and offer a great price. etrailer.com carries a complete line of CURT products for your Toyota Tacoma 2021. Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part C56349 from CURT can be ordered online at etrailer.com. Complete custom fit vehicle wiring installation instructions and technical support.
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2021 Toyota Tacoma - Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

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

Quickly and easily install a 4-way trailer connector on your Toyota Tacoma 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

California residents: click here


Customer Satisfaction Score:


Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - C56349

Average Customer Rating:  4.7 out of 5 stars   (277 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.

by:

Opened package, read instructions, installed the wiring harness. Tested to insure all worked. At 75 I don't move as fast as I used to but it was an easy install. Thanks



by:

wish i had an idea to share. to date i have a great hitch and fancy connector but haven't used it yet. don't feel bad i bought a trailer too and haven't used it yet. thanks for the follow-up.



by:
2017 ToyotaTacoma

Product was an easy install. I found a YouTube video to clear one thing up. I just had to search for the brand name and vehicle make and year along with what the part was and the video was one of the first three. Thankful they provided a video for install as I always appreciate when a company does that.



by:
2023 ToyotaTacoma

Threading two of the bolts down the frame was a PIA. While not difficult, it required significant fussing around with the wire, and moving the head of the bolt up.
The hitch works perfectly, and is very solid.
I haven't done the wiring yet, as this is for a boat I use only in summertime!

Etrailer Expert

Katrina D.

12/19/2023

Whenever you do use it, we will love to hear how it works for you!



by:

Dropped in my garage like this. Box clearly opened by someone else not one staple was closed. Will open when home hopefully wiring kit is still inside

Etrailer Expert

Jenny N.

2/10/2024

Oh my! If the harness is missing we can get that replaced for you. Customer Service will reach out to make sure that you received it.



by:
2020 ToyotaTacoma

Super fast shipping, great quality, great customer services, super easy navigation on website gets you exactly what you need and correct. Always a pleasure

Victor

12/22/2023

Year update , my harness still working flawlessly, no issues at all. Customer reps. Still reach out after a yr. To check if all is good. What does this say about them. 10??rating company. Always a pleasure



by:

The only hard part is running the power wire to the battery. Besides that it's plug and play.



by:

Very easy install, wire quality appears good. I spent extra time making sure I tied everything down. The video was a big help also.



by:

Easy installation



by:
ToyotaTacoma

Ordered, this kit along with towing package for my son's '22 Tacoma, everything fit and performed as it was advertised.



by:

I haven't installed it yet but the packaging was pretty terrible. Taped together and full of dirt.

Etrailer Expert

Jenny N.

2/5/2024

That is a bit concerning. Customer Service will be in touch with you. It can be replaced for you.



by:
2023 ToyotaTacoma

quick shipping, well packed thank you



by:
2016 ToyotaTacoma

This product is totally worth the money!!!! Everything worked the first time .. the install was very easy, only thing that was a little difficult was running the positive cable from the battery to the rear bumber.. just take your time and follow the chassis, that was a big help.. I bought this product to install rear led brake light strip and wanted to hide the cables to give it a oem look.. would definitely recommend this product!



by:
2016 ToyotaTacoma

Ironically, this is the second time I’ve purchased C56349 for my 2016 Toyota Tacoma. Both times I installed this product, it was extremely easy. The installation instructions are fantastic. I unfortunately had to buy this product a second time because the RV dealer where I purchased my camper cut into the circuit board wiring for no apparent reason. FYI, Curt does not issue the wire diagram for the circuit board, which I understand. Happy that I got this product 2x for a great price!



by:

The video and instructions were so helpful and well done. Your website was easy to use.

Thomas

7/31/2023

It has been working perfectly



by:

I get all my trailer parts and equipment from here great customer service can’t go wrong with Them



by:

Fast shipping was everything I needed great service



by:
2017 ToyotaTacoma

Does its job, very simple, longest part is running wires and securing with zip ties. Works great! If you watch the video on Etrailer from the older model you get a good idea of how it all goes together it’s only slightly different.



by:

Very easy to use. Works as it should.



by:

Everything was good got it very quickly, and could talk to someone on the phone about my order which was a big plus thank you very much



by:

Easy to install works great



by:

The staff was extremely knowledgeable. They had what I needed in stock super fast shipping. I couldn’t ask for a better company to deal with.



by:
2023 ToyotaTacoma

Easy to install



by:
2023 ToyotaTacoma

Order was processed sooner than promised and complete. Everything ready to install the Tacoma Sr trailer hitch.



by:

2016 Toyota Tacoma SR, Did the job in about 35 min pretty straight forward.


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Show More Reviews

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

  • Highest-Rated Trailer Hitch Receiver For 2023 Toyota Tacoma
    The highest-rated trailer hitch receiver for your 2023 Toyota Tacoma is a Class IV hitch with a 7,000 lb towing/1,050 lb tongue weight capacity and is made by Draw-Tite. The part number you need is the following: - Draw-Tite Max-Frame Trailer Hitch Receiver # 75238 Since it sounds like you are going to be using the # 75238 for some towing, if you also need a 4-way wiring harness the right fit for your truck is the T-Connector Vehicle Wiring Harness # C56349.
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  • Why Does 4-Way Wiring Harness Have Hot Lead on 2017 Toyota Tacoma
    Each of the 4-way wiring harnesses for your 2017 Toyota Tacoma do require a hot lead run to the battery, and the reason for this is to power the module. This is needed in your Tacoma and other vehicles in order to protect the tail light circuits from being overloaded, as they are not able to provide enough power without being damaged. You are correct that there are plenty of other vehicles that this isn't needed, though through testing, the harness manufacturers have determined the hot...
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  • Recommended Trailer Hitch Receiver and Wiring for 2022 Toyota Tacoma
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  • Recommended Hitch and Wiring Harness for a 2023 Toyota Tacoma
    Yes, we do have a hitch with a 2" receiver for your 2023 Toyota Tacoma. It is the Curt Trailer Hitch item # C13264. This hitch is custom fit and bolts to your Tacoma with included hardware. This is the highest weight capacity hitch we offer with a max tongue weight of 1,050 lbs and max towing capacity of 7,000 lbs. I have attached an installation video below that will walk you through the process of getting this hitch onto your Tacoma. We have two options for wiring harnesses that fit...
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  • 4-Way Trailer Wiring Harness for 2021 Toyota Tacoma SR5
    We have 4-way wiring kits that fit your 2021 Toyota Tacoma and install easily but none of them would use the connectors you sent in a picture of. Instead the kits we have install by plugging inline with the taillight connectors like the part # C56349.
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  • Best Trailer Hitch Choice for 2017 Toyota Tacoma
    Of the available hitches for your 2017 Toyota Tacoma, my choice would be between the etrailer brand # e98905 or the Curt # C13264 Class III hitch. The frame mounting flanges for both hitches extend inboard versus to the outboard which means the hitch is less likely to be damaged during transport and would fit better. Both hitches have a 6K towing/900 lb tongue weight capacity, which is well over the capacity of the truck itself. The Curt and etrailer brand hitches are functionally identical,...
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  • Recommended Trailer Hitch for a 2023 Toyota Tacoma
    Yes, the Curt Trailer Hitch Receiver part # C13264 is a confirmed fit for a 2023 Toyota Tacoma. I verified this with Curt for you. It features a simple bolt-on install with no drilling required. It has a class III rating with 2" opening for use with hitch mounted accessories or towing. Please note, if you will be towing then you'll also need a trailer wiring harness for which I recommend the Curt T-Connector Vehicle Wiring Harness part # C56349 which is plug-in play. The only other parts...
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  • Does Curt Trailer Hitch Receiver Fit 2023 Toyota Tacoma
    Yes, I verified directly with the manufacturer that the Curt hitch does fit your 2023 Toyota Tacoma, with the correct part being the following: - Curt Trailer Hitch Receiver # C13264 If you'll be towing and also need a 4-way wiring harness the correct part is the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56349.
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  • Recommended Hitch for a 2023 Toyota Tacoma
    Yes, we do have a hitch for your 2023 Toyota Tacoma. It is the Curt Trailer Hitch item # C13264. This hitch is custom fit and bolts to your Tacoma with included hardware. This is a class III hitch with a 2" receiver. It has a 7,000 lbs towing capacity, and a 1,050 lbs maximum tongue weight. This capacity can be increased to 8,000 lbs and 1,200 lbs when used with a weight distribution system. I really like this hitch because it bolts directly to your bumper and tucks in great beneath it....
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  • Correct T-Connector 4-Way Wiring Harness For a 2022 Toyota Tacoma
    Yes, the Curt T-Connector Vehicle Wiring Harness # C56349 is the correct 4-way wiring harness for your 2022 Toyota Tacoma. 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...
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  • Parts Needed to Add 5-Way to 2023 Toyota Tacoma
    If your 2023 Toyota Tacoma doesn't have any trailer wiring you would first need to start with a 4-way like the part # C56349 which is a confirmed fit and then install a 4-way to 5-way kit like the part # C57187 which would run to your reverse light circuit so that your lock out can function like needed. If your truck happens to have a 7-way already you'd instead need a 7-way to 5-way like the part # A75TB.
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  • Is Running The Power Wire For the Curt T-Connector Vehicle Wiring Harness # C56349 Required?
    Yes, the power wire for the Curt T-Connector Vehicle Wiring Harness # C56349 must still be ran to the battery on your 2019 Toyota Tacoma SR. The power wire for this is where the converter gets the power it is sending to the trailer lights. This prevents excessive draw on your factory wiring and damage to the factory harness.
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  • 2022 Toyota Tacoma Trailer Hitch and 4-Way Flat Wiring Harness Recommendation
    I recommend using the following setup for towing a trailer with your 2022 Toyota Tacoma - Draw-Tite Max-Frame Trailer Hitch Receiver # 75238 - Curt T-Connector Vehicle Wiring Harness # C56349 - Mounting Brackets # 18144 and # 18136 This gives you a solid and reliable towing setup on your Tacoma and the mounting brackets enable you to have the 4-Way connector mounted next to your hitch receiver so easy access.
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  • 4-Way Trailer Wiring Harness that Fits 2019 Toyota Tacoma
    The Tekonsha 4-way kit that you mentioned is inactive as it's on an extended backorder but we do have a similar Curt harness that does fit with the # C56349 which is available and would work great.
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  • Trailer Wiring Harness Recommended for 2022 Toyota Tacoma
    For a 4-pole trailer wiring harness, I'd recommend the Curt # C56349 which would plug inline between the vehicle's taillight wiring harnesses and the taillight assemblies. You can also use a mounting bracket which would consist of both part # 18140 and # 18144.
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  • Trailer Hitch Receiver and Other Parts to Tow a Trailer with a 2016 Toyota Tacoma
    The best trailer hitch that fits your 2016 Toyota Tacoma is the Curt # C13264. It's a Class III, 2 inch hitch that bolts right onto the truck's frame. All of the necessary hardware is included. If you're going to be towing with your truck you'll need wiring as well. The Curt T-Connector # C56349 wiring harness provides you with a 4-way trailer connector. It plugs into the truck's wiring behind both rear tail lights and then has a single wire ran to the battery. You can mount the connector...
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  • Recommended 4-Way Wiring Kit for 2020 Toyota Tacoma and Cargo Carrier/Trailer
    The 4-Way flat connector that I recommend for your 2020 Toyota Tacoma is the Curt T-Connector # C56349. Then, depending on what you have on your Tacoma you might also want to check out the Mounting Bracket # 18144 as well as a no-drill bracket like part # 18140 or # 18136 so you have easy access to the connector. If you don't already have a light kit for your Reese Cargo Carrier # 63153 I recommend the Light Kit # 20174 along with the 12" Extension # HM48144 to ensure that you can connect...
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  • Curt Trailer Hitch Receiver That Fits 2020 Toyota Tacoma
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  • Why Would Trailer Wiring Harness Cause Taillight of Vehicle to Stay On
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  • Recommended 4-Pole Trailer Wiring Harness For A 2022 Toyota Tacoma
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  • Are the Trailer Wiring Harnesses the Same for Both a 2017 and 2018 Toyota Tacoma
    If you are referring to a trailer wiring harness then no, the trailer wiring harness for a 2017 and 2018 Toyota Tacoma will be the same. For this, I recommend using the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # C56349. This harness is a direct plug and play option that will give you a 4-way trailer connector at the rear of the vehicle without requiring you to cut or splice any wires. I have attached an install video this harness on a similar 2016...
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  • 4-Pole Trailer Wiring Harness for 2017 Toyota Tacoma
    We do offer the Curt part # C56349 which is a plug-in T-connector, 4-pole wiring harness for your 2017 Toyota Tacoma. It 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...
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  • Availability Of Removable Connector For Black Wire Of Curt Harness C56349 To Make It Removable
    The easiest way is to use the Hopkins 2-pole # HM47965, as there isn't a single pole connector version of this. You'll cut it in half, and use butt connectors # DW05744-5 to install the plug in line of the black power wire in your Curt Wiring Harness # C56349. The connector has two wires, red and white, it doesn't matter which wire you hook the black wire to, just make sure you wire the black wire to the same color wire on both sides, and just leave the other wire unused. I made a rough...
    view full answer...
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Info for this part was:

Employee Mike L
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Employee Jameson C
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Employee Lindsey S
Edited by:
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Employee Joshua S
Video Edited:
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Employee Jacob T
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Employee Chris R
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Employee Cole B
Installed by:
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Employee Wilson B
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