bing tracking image
  1. Custom Fit Vehicle Wiring
  2. CURT
  3. Custom Fit
  4. Trailer Hitch Wiring
  5. 4 Flat
  6. Powered Converter
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 # C56322
Our Price: $91.53
You Save: 48%
Custom Fit Vehicle Wiring

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

Shipping Weight: 1.82 lbs
Add to cart
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Need help with installation?
Locate installers near me
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. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C56322 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.
  • All Info
  • Reviews (52)
  • Q & A (0)
  • Photos

CURT Custom Fit Vehicle Wiring - C56322

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

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.


  • 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 powered tail light converter that connects directly to your battery to avoid overloading your 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


  • 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 your tail lights. You will have to remove the tail lights 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.

56322 Curt T-Connector Vehicle Wiring Harness with 4 Pole Trailer Connector

Installation Details C56322 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 - C56322

Average Customer Rating:  4.6 out of 5 stars   (52 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.


The harness ultimately worked well, but it was most difficult to get installed. I spent 1-1/2 hours trying to fish the connectors into the left taillight well and found it impossible to squeeze through the extremely tight crevices using first a stiff 20 amp house wire, then a plastic tube as shown in the etrailer videos. Neither video indicated that this might be a struggle. I later bought a cheap fiberglass fish tool at [retailer] with several lengths that screwed together and was able to eventually fish both sets of connectors through as the stiff rods allowed me to spin and wiggle the taped connectors through a convoluted path. Between this and having to remove several undercarriage covers to fish the power line up to the vehicle battery I spent an additional five hours of time. I wish that videos had shown more of the potential difficulties and the necessity for a stiff fish tool to complete this job. I know they are pros who have done this job a few times, but the time-lapsed videos made it appear to be so easy. This review is to alert any other shade-tree mechanics what he or she will be getting into!



I have had no issues with the wiring harness since installation. As I rarely use my utility trailer during winter months in upstate New York, I seal the plug end in plastic and tuck it up behind the bumper to minimize corrosion due to snow, ice, and road salt.

Etrailer Expert

Mike L.


@Stayn417 Dielectric grease like # 11755 would do a great job of protecting your trailer connector.

2022 Chrysler Pacifica

Had to be shipped from a different location than the hitch, so it took a few extra days to receive, but it showed up in a reasonable timeframe and was packaged well. Worked on a 2022 Pacifica Hybrid with led tailamps.

Chrysler Pacifica

I haven’t had a problem with it since I had to modify the harness to work on my 2021 Chrysler Pacifica. I had to switch two wires to get all the lights on my utility trailer to work. It took several attempts to get ahold of someone who understood what the problem was.

2018 Chrysler Pacifica

Product fit as described. The only reason I gave 4 star instead of 5 is I wished it would've came with 1 or 2 extra butt connectors. Good product, good fit, works great.


I purchased the trailer hitch from etrailer and they installed it for me. I am completely satisfied with both the hitch and the installation quality. When ever I need anything for my vehicle I always check in with etrailer FIRST. They're unbeatable.


Not happy. In about 6 months the left turn signal failed to work. Mechanic traced it to a fault in wiring harness box. Notified you of failure and you said I should contact the mfr directly. Sent them an e-mail describing the problem. Never hear back from them. Had to buy new wiring harness and install it.

2018 Chrysler Pacifica

This was an easy install. Especially if you go ahead and go out to YouTube and use the e-trailer video on how to install it. I can't speak to its longevity. But on the lights are up and working and I am stoked.


The wiring met all my needs for my trailer and the individual who installed indicated it perfectly met the desired need.


Great customer service-saved the family vacation with speedy turnaround on finding parts and fast delivery !!!


Everything that was needed was included. The service was GREAT!!!

Penny S.


It has been great and done exactly what we needed it to do. Thank you.


A bit of a challenge to install, but the available video is very helpful.
Hint: install this during the hitch installation, while the underbody panel is removed.

2017 Chrysler Pacifica

The only problem I had was having to splice the connections to fish them behind the tailgate light. Other than that, worked perfect!

2019 Chrysler Pacifica

Had no trouble with installing. Good di rections.

2018 Chrysler Pacifica

Product worked great, only thing I would add to make product a 5 star would be to include a snake for getting big connectors to the brake lights.


Excellent they have all the answers to your questions about all their products


Great service and is delivered in a timely manner

2012 Chevrolet Volt

Excellent fit. Working with no hoist on concrete floor took me 1 1/2 hr. working alone. Fit just as advertised.
Electrical wiring a bit more involved, a hoist would be good. The challenging part is running the 12 volt wire to the battery with the removal of the underbody panels required. Still excellent product.
Both videos helpful.

2017 Chrysler Pacifica

This is a good wiring harness and worked well right off the bat after installation. It does requires some tricky work with fish wires that is quite difficult. Five stars for function, three stars for a rather difficult installation.


Very fast delivery. This was a replacement for wrong order I made. James Y was great to deal with in selecting and processing the replacement.
Any contact I've had in the past with etrailer has always been pleasant and helpful experience.
Thank you!


Perfect fit and great service from E-Tr ailer!


My mistake the first one I ordered but thanks to the folks at etrailer I was able to purchase the rignt on and exchange the wrong one at the same time and get my hitch installed just in time, thank you etrailer!

2022 Chrysler Pacifica

Worked correctly and shipping was fast

2018 Chrysler Pacifica

wires were not long enough. Plugs were too close together to reach out behind the light fixture i had to splice all the wires to reach and make it work.


Every item I ordered came a day earlier than expected, quality was excellent, instruction video on installing the hitch as well as the wireing absolutely helped. Everything went really smooth but I had a lift that helped


Always satisfied with etrailer

Show More Reviews

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

  • Wiring Harness for 2017 Chrysler Pacifica Hybrid
    A 4-pole wiring harness that is a confirmed fit for your 2017 Chrysler Pacifica Hybrid is the Curt # C56322. I checked with Curt to be sure this was a fit for the Hybrid version of your vehicle. I've added a link to a video review of this product for you as well.
    view full answer...
  • How To Confirm Fit of Curt T-Connector Vehicle Wiring Harness On 2021 Chrysler Pacifica
    The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # C56322 is a fit for a 2021 Chrysler Pacifica Limited, Touring L, and Touring L Plus. If you're unsure of which sub-model you have then you can reach out to the dealer with your VIN but we are not able to look this up for you unfortunately.
    view full answer...
  • 4-Pole Trailer Wiring Harness for 2019 Chrysler Pacifica
    There are indeed many variants of the 2019 Chrysler Pacifica and these have the following official model designations: Limited LX Touring Touring L Touring L Plus Touring Plus The "L" appears to be the same wiring fit as the Limited so you can use # C56322 from Curt. An install video is linked for you as well. All 4-pole wiring kits for all variations appear on the linked page.
    view full answer...
  • Troubleshooting Trailer Wiring Running Light Circuit Not Active Curt Harness 2022 Chrysler Pacifica
    First thing to check is for corrosion on the pins of your trailer wiring connector. Make sure the trailer's 4-way is clean and free of corrosion. Sandpaper fixes this pretty easy. Next try unplugging and plugging in the trailer wiring harness connections on the vehicle. Sometimes a pin just isn't seated properly.
    view full answer...
  • Trailer Wiring Harness Fitment for a 2021 Chrysler Pacifica Hybrid
    The Curt T-Connector Vehicle Wiring Harness # C56322 is a fit for some 2021 Chrysler Pacifica models but since you have the Hybrid you'll need a splice-in connector like the Curt Powered Tail Light Connector # C59236. This will need to be spliced into your OEM wiring so if that's something you aren't comfortable with then you might see if a local shop will be willing to do the installation for you.
    view full answer...
  • 2017 Pacifica Limited Trailer Wiring Harness Custom Fit
    The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56322 is the only fit from Curt for your 2017 Pacifica Limited. The Curt # C56399 you ordered is only a fit for the LX and Touring trim models so it will not fit your Limited trim model. I've linked our return policy to help you get it exchanged for the correct harness.
    view full answer...
  • Trailer Wiring Recommendation for 2021 Chrysler Pacifica Hybrid
    For your 2021 Chrysler Pacifica Hybrid we have the Curt trailer wiring harness part # C59236 as a confirmed fit which is a universal style but does fit and work great.
    view full answer...
  • Wiring Harness for 2017 Chrysler Pacifica Touring L with Electronic Stop/Start
    That is interesting that they included the wiring on your deal but then said that they couldn't install anything. Luckily both the Tekonsha T-One # 118712 and the Curt T-Connector # C56322 are compatible with your 2017 Chrysler Pacifica Touring L even with the Electronic Stop/Start. I reached out to my contact at Tekonsha who said that he hasn't heard of any issues and since this tees in behind your tail lights you won't experience any issues. I do recommend going with the T-One over...
    view full answer...
  • What Trailer Hitch is a Fit for 2018 Chrysler Pacifica Hybrid Limited?
    There is a hitch that is a fit for your 2018 Chrysler Pacifica Hybrid Limited, the Curt # C13383. This is a Class III hitch with a 2" receiver, 400 lb tongue weight capacity and 4,000 lb towing capacity. To add a 4-flat wiring harness you would want the Curt T-Connector # C56322. If you are going to be towing, I recommend checking out Ball Mount Kit # 989900, which may fulfill your towing needs in one tidy package; two ball mounts - one with a 3/4” rise or 2” drop and the other with a...
    view full answer...
  • Trailer Hitch Receiver and Trailer Wiring Harness for 2020 Chrysler Pacifica Launch Edition
    We do have a trailer hitch receiver as well as wiring that will fit your 2020 Chrysler Pacifica Launch Edition. I was able to confirm with the manufacturer that the following hitch and wiring harness are a fit for your exact Pacifica: - Curt Trailer Hitch Receiver # C13383 - Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56322 Both will fit your 2020 Pacifica Launch Edition perfectly, and I have added a link below to a video install of the hitch for you...
    view full answer...
  • Trailer Hitch Availability for a 2018 Chrysler Pacifica Hybrid
    We do have a trailer hitch available for your 2018 Chrysler Pacifica hybrid. The Curt Class III Trailer Hitch Receiver # C13383 is a confirmed fit for both the Platinum and Premium hybrid models. If you will be using this hitch to tow a trailer then you will also need a hitch ball, ball mount, and trailer wiring. The Curt Class III Ball Mount with 2" Ball - 2" Drop # C45036 is a great option to use but you will want to consult the attached ball mount article to determine if the 2"...
    view full answer...
  • Recommended Trailer Hitch Receiver for Towing With 2021 Chrysler Pacifica Limited
    For towing with your 2021 Chrysler Pacifica Limited, I recommend the etrailer Trailer Hitch Receiver # e98903. This Class III hitch has a round-tube design and a 2" receiver. It features a matte black powder coat finish which helps hide scratches when compared to a glossy finish. The maximum gross trailer weight is 4,000 lbs and tongue weight is 400 lbs. This hitch is made in the USA. Since you will be towing you also need wiring, and for the most reliable wiring harness I recommend the...
    view full answer...
  • Choosing The Correct 4-Way Wiring Harness For a 2020 Chrysler Pacifica
    The Tekonsha T-One Vehicle Wiring Harness # 118723 is designed to work with the LX and Touring Trims of your 2020 Chrysler Pacifica. These trims do not have LED tail lights. For your Limited trim you will need either the Curt T-Connector Vehicle Wiring Harness # C56322 or Tekonsha T-One Vehicle Wiring Harness # 118712. To ensure correct fitment it is best to check your VIN number to ensure that you get the correct kit. The 7th Digit of your VIN number will tell you what trim level you...
    view full answer...
  • Tekonsha or Curt Wiring Harness for a 2017 Chrysler Pacifica Touring L
    I recommend going with the Tekonsha T-One # 118712 over the Curt T-Connector # C56322 for your 2017 Chrysler Pacifica Touring L simply because it has higher amp ratings and we have found the Tekonsha wiring products in general to be the most reliable on the market. If you don't already have a hitch then I recommend the Curt # C65CR because it has a hidden crosstube which gives a clean look. To complete a towing setup you also need a ball mount kit. I recommend checking out Ball Mount...
    view full answer...
  • Does Installing the etrailer Hitch Affect the Functionality of the Hands Free Lift Gate?
    Good news! Installing a trailer hitch like the etrailer # e98903 on your 2020 Chrysler Pacifica Hybrid will not affect the operation of the hands free liftgate feature on your vehicle. You'll simply slowly kick your foot to either side of the hitch receiver to open the rear cargo hatch in the same manner that you normally would. If you're going to be towing a trailer at all with your 2020 Pacifica Hybrid you'll need a wiring harness, ball mount and hitch ball to complete your towing setup....
    view full answer...
  • Does Curt 4-Way For 2017 Chrysler Pacifica Limited Work Without Being Connected to Battery
    The Curt T-Connector Vehicle Wiring Harness # C56399 does not fit your 2017 Chrysler Pacifica Limited, it is for the LX and Touring models; the correct part for your Limited is the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56322. This connector will not work without being connected to the battery as this is how the converter is powered. So that is a necessary step, and the only other thing you'll need for towing is a hitch, the Trailer Hitch Receiver...
    view full answer...
  • Trailer Wiring Harness Fit on 2021 Chrysler Pacifica Touring L
    We do have a trailer wiring harness that is a fit for your 2021 Chrysler Pacifica Touring L model: - Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56322
    view full answer...
  • Does 2019 Chrysler Pacifica Hybrid Have a Towing Capacity
    I took a look at an online copy of the owner's manual for a 2019 Chrysler Pacifica Hybrid and it stated that towing a trailer is "not permitted" with the vehicle so it would be up to you to decide if that was a direction you wanted to go. If so there is a trailer hitch that fits the '19 Pacifica Hybrid, the Curt # C13383. This is a Class III hitch with a 2" receiver and is a great option because it does not require any drilling into your vehicle's frame to install. I have added a link...
    view full answer...
  • Does Curt Trailer Hitch Receiver C65CR Fit A 2020 Chrysler Pacifica AWD Launch Edition?
    I checked with my contact at Curt and confirmed that the Curt Trailer Hitch Receiver - Custom Fit - Class III - 2" # C65CR you were looking at is a confirmed fit for your 2020 Chrysler Pacifica AWD Launch Edition. The # C65CR has a 400lb tongue weight rating and 4000lb trailer weight rating, or 500lb tongue weight rating and 5000lb trailer weight rating when using a weight distribution hitch making this a great option for carrying a bike rack, a cargo carrier, or even towing a trailer. If...
    view full answer...
  • Recommended Hitch for a 2022 Chrysler Pacifica
    The Curt Trailer Hitch item # C29UR for your 2022 Chrysler Pacifica is the same hitch as the 13466. There are no differences. This hitch is custom fit and bolts to your Pacifica with included hardware. If you are planning on towing with your Pacifica you will also need a wiring harness item # C56322 and ball mount kit item # C45534.
    view full answer...
  • Does etrailer Hitch Block Hands Free Lift Gate Sensor for 2020 Chrysler Pacifica
    Installation of the etrailer Hitch part # e98903 on your 2020 Chrysler Pacifica still allows for the hands free liftgate sensor to work but may limit the range of the sensor which may result in you having to put your foot near or around the hitch. To get you all set up I recommend a 2-inch ball mount. I have attached a link to determine what size ball you will need, how to decide what drop/rise amount you will need, and the page with all of our 2-inch ball mounts once you have your measurements....
    view full answer...
  • Parts Needed to Tow Trailer with 2017 Chrysler Pacifica without Tow Package
    In order to tow a trailer with your 2017 Chrysler Pacifica you will need a trailer hitch, wiring harness, and ball mount/hitch ball combo. Based on my research the factory tow package can vary a bit depending on what "group" is selected but for the Pacifica it generally consists of a trailer hitch, wiring connector, upgraded alternator, and a heavy-duty radiator. The towing capacity also differs between the two options, as the Pacifica lists a 3,600 pound capacity with the package and a...
    view full answer...
  • Correct Trailer Wiring Harness Confirmed to Fit a 2018 Chrysler Pacifica Hybrid Limited
    You are correct that the Curt # C56332 does not fit a 2018 Chrysler Pacifica. The correct Curt wiring for your van is # C56322. I'm guessing the error was made because of how close the part numbers are to each other. With that being said I recommend using the Tekonsha wiring, part # 118712, that's also confirmed to fit your Pacifica. We usually find the Tekonsha wiring harnesses to be of better quality than the Curt products. If you don't already have a hitch Curt offers a Class...
    view full answer...
  • Hitch Equipment For 2020 Chrysler Pacifica Hybrid
    It looks like your towing capacity is around 3600 pounds, although you should consult your vehicle's documentation for exact capacity. A 1200 pound boat and trailer should not be a problem. For your hybrid the etrailer e98903 would be a good choice for a Class-3 hitch with 2" receiver. I have attached a link to this product and an installation video on a 2020 Pacifica. I think the matte black finish hides the hitch better and will inhibit rust longer. You will also need a ball mount...
    view full answer...

< Previous

Do you have a question about this Custom Fit Vehicle Wiring?

Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Lindsey S
Edited by:
Lindsey S
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B
Employee Amanda M
Written by:
Amanda M
Employee Shane H
Test Fit:
Shane H
Employee David F
Test Fit:
David F
Employee Jacob H
Test Fit:
Jacob H
Employee Ryan G
Test Fit:
Ryan G
Employee Bradley B
Test Fit:
Bradley B
Employee Jonathan Y
Video by:
Jonathan Y
Employee Aidan B
Video by:
Aidan B
Employee Thomas T
Video by:
Thomas T

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.