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  1. Custom Fit Vehicle Wiring
  2. CURT
  3. Custom Fit
  4. Trailer Hitch Wiring
  5. 4 Flat
  6. No Converter
Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Item # C56325
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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 OEM tow package wiring harness - no cutting, splicing or tapping required. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C56325 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 for Factory Tow Package - 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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CURT Custom Fit Vehicle Wiring - C56325

  • Custom Fit
  • Trailer Hitch Wiring
  • 4 Flat
  • No Converter
  • CURT

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into OEM tow package wiring harness - no cutting, splicing or tapping required.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Designed for use with a factory tow package
    • 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 center of rear bumper
    • Plug in T-connector
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage:
    • Stop/turn lights: 7.5 amps per circuit
    • Tail lights: 7.5 amps per circuit
  • 1-Year limited warranty


Installation

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


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.



56325 Curt T-Connector Vehicle Wiring Harness with 4 Pole Trailer Connector

Installation Details C56325 Installation instructions

This Product Fits The Following Vehicles



California residents: click here



Customer Reviews

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector - C56325

Average Customer Rating:  4.9 out of 5 stars   (146 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into OEM tow package wiring harness - no cutting, splicing or tapping required.

by:

I bought the wiring harness to use on my boat trailer. but since then I have used it on a number of trailers. I have let some friends use it for there trailers also.



by:

Makes wiring easy, the only issue I had was getting the protective plug out. I thought once you slid the red tab back, you could pull it out, but there is a tab you have to push also, once I figured this out, no problem.



by:

Easy to install, it was the right fit for vehicle. I have been using it for a year and have no issues.



by:

it took longer to ship than the Hitch & the video on your site for a Blazer isn't a RS it takes a few more steps that would confuse the normal DIY er



by:

Hitch Fit as stated,it went together well. Son in law and I put it on in about 1 1/2 hr on a blacktop driveway. We were pleased an it was a good project with money saved. Also wire harness for trailer was very easy plug in route. Lights even worked correctly haha. Nice. Money saving.



by:

Plugs write in to existing wire harness



by:

Received before estimated delivery date, and exactly the right fit for our vehicle. Great customer service.



by:
Cadillac

Hi etrailer, I can’t say enough. From the sales rep (informational and personable), to the super fast shipping (love the tracking system), to the help videos. The Curt hitch receiver fit my 2019 Cadillac xt5 perfectly. I also ordered a wiring harness and vehicle harness tester. All went smoothly. Would definitely recommend etrailer and thank you very much. A very pleasant experience.



by:
2021 GMC Acadia

Easy to install. Great product. Haven’t tested it yet, but I’m sure it’ll work.



by:

Exactly as described. Instructions were clear and the item was plug and play. I was worried because I chose the cheaper option, but it didn't seem to make a difference. Doing it again, I would have bought the $5 tester to make sure because I won't know everything fully works until I need to use a trailor:)



by:

still works great after a year



by: 05/21/2021

The hitch arrived 1 month early than the scheduled date is which was a pleasant surprise. Although the box was destroyed and items ordered were there and were not damaged. The tow vehicle, a2021 Buick Envision, is a new vehicle the hitch did not that long to install. The wire harness harness was not. A dealership was contacted to install it. The instructions were not clear or explained what was needed. Only a cost of $xx.xx solved the problem.
The means of shipment, box or carrier, should be looked into. All items I needed were still in the box.



by:

I struggled at first getting the plug out of the connector then I got smarter and watched your video. Easy when you know how. Your videos are great time saver. I recommend anyone installing to watch the video first. Very pleased with everything I purchased.



by:
2019 Cadillac XT5

Very simple installation.



by:

Easy plug in , as good or better than f actory!



by:

Simple plug and play install



by:
2017 Cadillac XT5

Worked perfect. Just pluged it into the connector.



by:
2019 Cadillac XT5

perfect fit.



by:
2020 Cadillac XT5

Easy installation. Plug and play. If installing hitch at same time, install T-connector first. More room to work.



by:

Perfect fit



by:

It fits perfectly



by:

Fast delivery



by:

Couldn’t be an easier



by:

Harness was an easy plug and play conne ction



by:

Easy to install


25
146
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Ask the Experts about this CURT Custom Fit Vehicle Wiring



  • Finding The Factory 4 Way Wiring Harness On 2021 Buick Envision
    The Curt wiring harness # C56325 is designed to replace the factory 4-Way flat connector on the 2021 Buick Envision St models that came with a 4-Way connector from the factory. The factory harness should be located behind the rear bumper about in the center of the vehicle. I have linked the instructions and an install video of the same harness on a similar vehicle that should help you locate the connector.
    view full answer...
  • Removing Tow Plug Cap on 2019 Cadillac XT5 to Install Curt Wiring Harness C56325
    There isn't a trick to removing the cap on the tow plug of your 2019 Cadillac XT5 to install the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector # C56325. I have added a link below to an installation video of this harness on an XT5, and at about the 2:30 mark you can see how our installer did it. What he did was slide the red tab away from the plug and up, and there will be a little gray tab to push down. I do highly recommend watching that...
    view full answer...
  • Where Does Curt Trailer Wiring Harness C56325 Install on a 2017 Cadillac XT5
    The Curt wiring harness # C56325 is designed to replace the factory 4-Way flat on models of the 2017 Cadillac XT5 that came with a 4-Way connector from the factory. You can check on your XT5 to see if it has the factory connector to plug the Curt harness into. The factory harness should be located behind the rear bumper about in the center of the vehicle. I have included a link to a video below of a difference harness that installs the same way so you can use it as a guide to locate the...
    view full answer...
  • Does Curt Trailer Wiring Harness Fit 2020 Acadia without Factory Tow Package
    Yes, the Curt wiring harness # C56325 does fit your 2020 GMC Acadia. You can verify by finding the connector behind your Acadia's muffler. If you don't already have a trailer hitch I recommend the Curt # C13293 because it's a much easier install than the other option for your SUV.
    view full answer...
  • Best Trailer Hitch Receiver for 2020 Chevy Blazer
    The best trailer hitch receiver for your 2020 Chevy Blazer is the Curt Trailer Hitch Receiver # C13418. The reason the Curt is the best is because it has a concealed crosstube which ensures only the receiver is showing, and is a much easier installation than the Draw-Tite model, which requires the removal of your Blazer's bumper beam; the Curt hitch does not. I have added a link to a video install for you to check out as well of the Curt Trailer Hitch Receiver # C13418. Additionally,...
    view full answer...
    Image 1 for
  • Does Rear Bumper of 2022 Buick Envision Remove to Install Curt Hitch
    We have had some feedback from customers who had installed the Curt hitch # C94ER on a 2022 Buick Envision and the consensus seems to be that the exhaust needs to lower for the hitch to fit past it. This would be easier than removing the rear bumper and is a pretty standard step for most hitch installs. It basically comes down to removing the hitch hangers which are rubber isolators that secure it to the vehicle and letting it hang a little lower.
    view full answer...
  • Curt Receiver Hitch and Complete Towing Set Up for 2021 GMC Acadia
    For your 2021 GMC Acadia, I recommend the Curt Trailer Hitch Receiver - Custom Fit - Class III - 2" item # C13293. This receiver hitch has a maximum gross trailer weight of 5,000 lbs and a maximum tongue weight of 750 lbs. This is the highest rated hitch receiver for the 2021 GMC Acadia. This fully welded trailer hitch receiver bolts onto your GMC Acadia's frame with no welding required. The powder coated steel is sturdy and corrosion resistant. I recommend the Curt T-Connector Vehicle...
    view full answer...
    Image 1 for
  • Trailer Hitch Receiver for 2019 Cadillac XT5
    We have a few hitches that will work great for your 2019 Cadillac XT5. I recommend the Curt Trailer Hitch Receiver # C13285. This hitch has a gross towing weight capacity of 5,000 lbs and a tongue weight capacity of 750 lbs. If you plan on towing a trailer with this hitch you will also need a trailer wiring harness to operate your trailer lights. For that kit I recommend # 118276 or # C56325.
    view full answer...
  • Easy to Install Trailer Wiring Harness for a 2022 Buick Envision with Trailer Connector
    I have just what you need. The Curt T-Connector Vehicle Wiring Harness # C56325 is confirmed to fit your 2022 Buick Envision and will plug into your vehicle's wiring harness, which is located behind your rear bumper on the driver's side. After installation the 4-way will be stowed under your vehicle by the hitch. I recommend using the No-Drill Mount # 18140 and the Mounting Bracket 4-Pole Flat # 18144 to mount the 4-way to your hitch to keep it from dragging on the ground and so that you...
    view full answer...
  • Locating The Factory Connector For 4-Way Vehicle Harness On a 2022 Buick Envision
    The factory connection on your 2022 Buick Envision is located behind the rear bumper cover. You will need to locate the wiring that comes out of the center of the body and follow the wiring toward the drivers side to the connector with the dummy plug(See Image). This is where you will be able to connect your Curt T-Connector Vehicle Wiring Harness # C56325 on your Envision. If your Envision does not have this connector you will need to use the Tekonsha Upgraded Modulite Vehicle Wiring...
    view full answer...
    Image 1 for
  • Comparing Curt and Draw-Tite Hitch for 2019 Chevy Blazer
    I highly recommend the Curt Trailer Hitch # C13418 for your 2019 Chevy Blazer, and this is the one I would put on mine over the Draw-Tite Trailer Hitch # 76023. The reason why I recommend the Curt is because it is far easier to install than the Draw-Tite hitch, which requires the temporary removal of fascia and the bumper beam, as well as trimming your Blazer's fascia. Another reason I would choose Curt over the Draw-Tite is because of the Curt's advantage in capacities. The Curt's...
    view full answer...
    Image 1 for
  • Parts Needed to Install 7-Way and Brake Controller in 2019 GMC Acadia w/o Tow Package
    Since your 2019 GMC Acadia does not have the factory tow package you will need to first install a 4-way on your vehicle with the # C56325 and then convert it to a 7-way with the part # ETBC7 which comes with everything needed to also wire up a brake controller like the Brake EVN # TK63VR. I attached install videos for both wiring kits for you to check out as well that will walk you through the entire process.
    view full answer...
  • Comparing the Curt and Draw-Tite Trailer Hitches for a 2019 Chevrolet Blazer
    The Draw-Tite Class III Max Frame Receiver Hitch part # 76023 and the Curt Class III Receiver Hitch part # C13418 are both excellent options for a 2019 Chevrolet Blazer. I recommend going with the Curt Class III Receiver Hitch because it will be much easier to install than the Draw-Tite Class III Max Frame Receiver Hitch. The Draw-Tite Class III Max Frame Receiver Hitch requires that you remove the rear bumper fascia whereas the Curt Class III Receiver Hitch just requires that you lower...
    view full answer...
    Image 1 for
  • Will the Curt Trailer Hitch Receiver C13418 Fit a 2020 Chevrolet Blazer RS
    The Curt Trailer Hitch Receiver part # C13418 is indeed a confirmed fit for a 2020 Chevrolet Blazer RS. In fact, I installed this hitch personally on a 2019 Chevrolet Blazer RS and there were no changes from the 2019 to 2020 model year so I know it works. I also confirmed this with Curt as well just as a precaution. If you will be towing then you will also need a trailer wiring harness, the Curt T-Connector Vehicle Wiring Harness part # C56325 if you need a 4-way or part # C56326 if you...
    view full answer...
  • Best Trailer Hitch for a 2019 Chevy Blazer All Models Including RS
    The best trailer hitch for a 2019 Chevrolet Blazer (All Models Including RS) is the Curt Trailer Hitch Receiver part # C13418. I place this over the Draw-Tite Max-Frame Trailer Hitch Receiver part # 76023 because it will be much easier to install. The Draw-Tite hitch requires removal of the entire rear bumper fascia which will take upwards of two hours whereas Curt hitch really just requires you to lower the exhaust a bit which will only take around forty minutes or so all said and done....
    view full answer...
    Image 1 for
  • Recommended Trailer Hitch Receiver For 2017 GMC Acadia
    Yes, we do some installations here at our Wentzville, MO location. Let me make sure I get you the right parts for your vehicle and then you can call to set up an appointment if you'd like. For your 2017 GMC Acadia, I recommend the Curt Class III # C13293. This is a 2 inch receiver that will be able to tow well, but also will allow you the greatest variety of accessories for your vehicle. If you will be towing with this hitch, I recommend the Curt T-Connector Vehicle Wiring Harness...
    view full answer...
  • Parts Needed to Install 7-Way on 2021 Buick Envision
    We can get your 2021 Buick Envision set up with a 7-way that also has a 4-flat so you can plug in either a 7-way or 4-way trailer connector. The first thing you will need is 4-way if your '21 Envision does not have one, and the right one depends on if you have the factory trailer connector or not: - Without Factory Trailer Connector: Upgraded Modulite Vehicle Wiring Harness Kit w/ 4-Pole Trailer Connector and Installation Kit # 119147KIT - With Factory Trailer Connector: T-One Vehicle...
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Chelsea B
Written by:
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Employee Wilson B
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Video by:
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Employee Thomas T
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