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  1. Custom Fit Vehicle Wiring
  2. CURT
  3. 4 Flat
  4. No Tow Package
  5. Trailer Hitch Wiring
  6. Vehicle End Connector
THIS ITEM IS NOT A FIT FOR
2022 Keystone Springdale Travel Trailer
CURT

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

Part Number: C63RV
In Stock
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$92.72
Retail:$147.95
You Save: 37%
Custom Fit Vehicle Wiring
Not Confirmed to Fit

2022 Keystone Springdale Travel Trailer

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Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connectors plug 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 C63RV or order online at etrailer.com. 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.
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  • Reviews (30)
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CURT Custom Fit Vehicle Wiring - C63RV

  • 4 Flat
  • No Tow Package
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • CURT
  • Plug and Lead
  • Powered Converter
  • Hidden

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connectors plug 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 - no cutting or splicing of wires
    • Tow harness with 4-way connector plugs into connection points behind the driver's-side and passenger's-side tail lights
  • 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: 6 amps per circuit
    • Tail lights: 3 amps per circuit
  • 1-Year limited warranty


Installation

This custom-fit T-connector plugs into your vehicle's wiring harness. The connection point for the 4-way tow harness is located behind the driver's-side and passenger's-side tail lights. Once you've plugged in the converter, insert the included 10-amp fuse into the integrated fuse holder.


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.



56530 CURT T-Connector - Surface Mount Technology - 4 Wire

Installation Details C63RV Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.5

30 reviews
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connectors plug directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.

by:
2025 Kia Sorento

Does NOT fit my 2025 Kia Sorento Hybrid as I was assured it would. I now have to try to source the right one, again, plus return this one for a refund if even possible.
P
Included photo shows the two parts of one side of the harness and the connector on the taillight assembly.

Nick S. profile picture
Etrailer Expert

Nick S.

9/15/2025

This is a custom fit harness for the 25' Sorentos, the only thing I can think of would be if your vehicle does not have LED tail lights this product will not work for it. It is only intended for vehicles with LED tail lights. I recommend double checking to see if you do or do not have LEDs.



by:
2025 Kia Carnival

This was not made for my 2025 hybrid kia carnival. Doesn’t fit waste of money and time ??????

Lazer S. profile picture
Etrailer Expert

Lazer S.

9/23/2025

Unfortunately, this will only fit the non-hybrid versions of 2025 Kia Carnival, Corrie. There isn't a plug an play option for the hybrid models, but we do have the Curt Powered Tail Light Converter # C59236 that can be used. Would you like to have a return label sent out for the incorrect wiring harness? I can get that moving if so.



by:

etrailer was excellent to work with. I had to have a harness switched out because manufacturer switched plug ends at some point. Madison understood my issues and made sure I received the correct Curt harness. The Curt harness was perfect and the instructions were very clear and easy to understand. I highly recommend both companies and suggest talking with Madison but I’m confident that anyone you speak to at etrailer will be able to help you.



by:

It was not the right part I sent it back on ups and it in Jacksonville fl as of now the tracking number is

1Z5DLT290309632020 so this will be delivered back to you as well

My refund will take some time that is two of them I sent back



by:

This did not fit my taillight connectors. I did not have time enough to exchange them before i needed to tow so I ended up cutting the connectors off and splicing the wires. Works great. Too bad I didn't have time to exchange for the kit made for splicing wires and saved a little.



by:

Plug and play. Zero issues



by:
Kia

If there were about 6” more wire on the pigtails going to the lights, I’d give it 5 stars.
There isn’t much room to work under the car already, and having ‘just enough’ wire makes it challenging. Super simple install. Just would prefer a little more play in the wiring.
2025 Kia Sorento



by:
2024 Kia Sorento

Thank you for helping me with my 2024 Kia Sorento X line SX Prestige. I was told by Curt Technicians that they would not have a harass for months after ordering a harness 56474 which shows pictures of plug like my Kia in advertising but when shipped were nothing like the pictures. I called Etrailer and was assured I would get what was picture C63RV. It was as described and it works, Easy plug in, no problems. I am also grateful for the videos on the website, very helpful to let me know what I was getting and tips on how to install.



by:

This kit was exactly what I needed to get the job done. The only criticism I have is that the manufacturer should extend the length of the green taillight wire because it was very tight in my application. But nonetheless, the install was pretty straightforward and I got it completed in a few hours by myself.



by:

It was the rough part for the car sent it back as well



by:
2024 Kia Sorento

Fits perfectly on a 2024 sorento x-line Limited with led light Canadian vehicle



by:
Kia Sorento

Perfect fit plug and play for my 2025 Sorento xline



by:
2025 Kia Sorento

fit vechile and install video was very helpfull



by:
2025 Kia Sorento

So far works great needs longer wire for passenger side though



by:
2024 Kia Sorento

Exactly Wath I need! For Kia Sorento 2024 x-pro



by:
2024 Kia Sorento

Everything I have ever purchased here has been perfect!!



by:

All good



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2025 Kia Sorento



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2025 Kia Sorento



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

  • Alternative 7-Way Connector for the Kia R0F67 AC600 on a 2025 Kia Carnival
    No, I do not Paul and I doubt Curt or Draw-Tite make anything other than a 4-way for the hybrid model. Aftermarket wiring harnesses for vans are typically limited to 4-way connectors like the item # C63RV for LED lights or the item # C32MJ for incandescent lights. I checked with Curt and these are confirmed to fit the 2025 Kia Carnival Hybrid. To add a 7-way connector you would also need the Universal Installation Kit item # ETBC7. The kit includes a pre-wired 7- and 4-way trailer connector...
    view full answer...
  • Trailer Hitch and Wiring that Fits 2025 Kia Carnival Hybrid
    Hey George, for your 2025 Kia Carnival Hybrid the Curt hitch part # C67ER is a confirmed fit and will work great. Then for trailer wiring you would want the Curt # C63RV which definitely works as long as you have LED taillights. Since your vehicle is a hybrid you'd definitely have LED taillights. What are you planning on towing?
    view full answer...
  • Trailer Wiring Harness Recommendation for 2025 Kia Sorento with LED Taillights
    Hey Brandon, we have the Curt trailer wiring harness part # C63RV that is a confirmed fit for your 2025 Kia Sorento with LED taillights and is a plug and play model that does not require any splicing. I attached a link to an install video for this kit on a similar 2025 Sorento for you to check out as well. Do you have a hitch already?
    view full answer...
  • Correct Wiring Harness For 2023 Kia Sorento LX Gulf Without LED Tail Lights
    Hello, and thanks for reaching out. The correct wiring harness for your 2023 Kia Sorento LX Gulf without LED lights is the Curt T-Connector # C63RV. This will fit all models of the 2023 Sorento that do not have LED lights. Let me know if there is anything else you need.
    view full answer...
  • Correct 4-Way Wiring Harness for 2025 Kia Sorento Hybrid SX Prestige
    Hi Bryce; U-Haul probably tried to use the Curt # C63RV which does not fit hybrid or SX models of the 2025 Sorento. None of the manufacturers make a custom wiring harness so the only option is a universal splice-in like # C59236 or the # 119250KIT which clamps onto your vehicle wiring. If you decide to pick up a hitch through us you can use the Curt # C37RV. For a ball mount that will work with a variety of trailers check out the # e66PR. This has a 6” rise or drop for different trailer...
    view full answer...
  • Recommended Trailer Wiring Harness for a 2025 Kia Sorento w/ LED Lights
    Hey Bryn. Our options are still limited for the 2025 Kia Sorento with LED lights. The best solution I have for you since you're leasing is the ZCI Circuit Protected Vehicle Wiring Harness item # 119250KIT. This lighting kit uses clamps that attach to your tail light wires without cutting into them so it's completely removable. The clamps sense the signals going to your tail lights and send them to the converter, which then relays them to the 4-way connector. What are you needing a wiring...
    view full answer...
  • 4-Way Wiring for 2024 Kia Sorento Hybrid
    Hi Mike; I'm assuming by electric you mean you have the 2024 Kia Sorento Hybrid. Are the taillights LED? The # C63RV you got doesn't have a restriction on the hybrid models but is designed for incandescent lights so that is likely the issue. Since the custom wiring harness for LED lights does not fit hybrid models you will need the # C59236 which splices in for installation. If you don't want to splice into your wiring you can also use the # 119250KIT which uses sensors that clamp on. To...
    view full answer...
  • Trailer Wiring Harness that Fits 2025 Kia Carnival with LED Taillights
    Hey Liana, we can confirm for you that the Curt trailer wiring harness part # C63RV that you referenced is for sure a fit for your 2025 Kia Carnival with LED taillights. This is just a 4-way though. Do you need a 7-way too?
    view full answer...
  • Correct Trailer Wiring Harness for a 2024 Kia Sorento SX Prestige with LED Tail Lights
    Hey Robert, thanks for reaching out! According to Curt the T-Connector Vehicle Wiring Harness # C63RV is compatible with LED tail lights on your 2024 Kia Sorento, so you'll be able to us this to tee in behind your tail lights as opposed to splicing your connections in. (not sure why our system says without LED tail lights, but I've sent in a note to have them look at that) Please note that this also has a black wire you'll need to connect to your battery for power so it's a little more...
    view full answer...
  • Recommended Wiring Harness for a 2025 Kia Sorento EX Hybrid
    Hey Mike! I saw your were looking at a 4-way connector. I checked with Curt and the correct one for your 2025 Kia Sorento EX Hybrid, is their T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector item # C63RV. 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. This will provide you with a 4-way connector. I have linked an installation video below that will show you where to find...
    view full answer...
  • Recommended Hitch, Wiring, and Brake Controller for a 2025 Kia Carnival
    Hey Justin, congrats on the new van. Since you do not have the factory tow package on your 2025 Kia Carnival, you are going to need to install two separate wiring harnesses if your goal is to tow a trailer with brakes. I have listed the parts you will need below: 4-Way Connector - If your Carnival has LED lights, you'll need the Curt T-Connector Vehicle Wiring Harness item # C63RV. This custom-fit T-connector plugs into your Kia Carnival's wiring harness, which is located behind the driver's-side...
    view full answer...
  • 2025 Kia Carnival Trailer Hitch and Wiring Recommendations
    Hey John, thanks for reaching out! I see you ordered the Curt Trailer Hitch Receiver # C67ER from us the other day (thank you for that!) so for a matching wiring kit I recommend the Curt # C63RV if you have LED lights or the Curt # C32MJ if you don't have LED lights. These aren't plug and play, but they do tee in behind your tail lights so you don't have to cut and splice any wiring. I'm not familiar with your Trailer Prewire Harness, but feel free to send me any photos of what you found! To...
    view full answer...
  • Recommended Trailer Wiring Harness for a 2024 Kia Sorento XLine w/ LED Lights
    Hey Darryl. There are two different harnesses for the 2024 Kia Sorento XLine. Since yours has LED lights you'll want the Curt T-Connector Vehicle Wiring Harness item # C99DR. These connect directly to your factory wiring harness. I've linked an installation video along with a picture so you can compare the connector to yours. I didn't see an order number. What part number is the harness you tried that doesn't fit? You can add this information and any other questions you have where it...
    view full answer...
  • Plug In T-Connector For 2024 Kia Sorento
    Hello Robert, thanks for reaching out. We do offer a plug in T-connector for the 2024 Kia Sorento. It will be part # C99DR for models with LED taillights, and part # C63RV for vehicles without LED taillights. These will plug in directly behind the tail lights on the driver and passenger side. You will need to run a wire to the battery to power the converter. You will find our install videos for both wiring kits below. Feel free to leave a reply with any questions or comments and I will...
    view full answer...
  • Does Curt Trailer Wiring Harness C63RV Fit 2024 Kia Sorento S
    Hey Mike, yes the Curt trailer wiring harness part # C63RV does fit the 2024 Kia Sorento S.
    view full answer...
  • 4-Way Wiring Harness for 2024 Kia Sorento EX
    Hi Robert; the Curt # CU94FR is not confirmed to fit the 2024 Sorento. If you have LED lights you will need the # C99DR and if you have incandescent the # C63RV. None of the aftermarket wiring harnesses will fit your 2024 Kia Sorento EX tow package plug at this time.
    view full answer...
  • Will I Need to Trim My Bumper on 2025 Kia Sorento Hybrid to Install Curt Hitch # C37RV?
    Hello Rob, Congrats on the new wheels! What’s your favorite new feature? We recently did an install on a non-hybrid Kia Sorento and found no trimming was needed. I looked into the Hybrid version and confirmed that the bumper isn’t longer, so there won't be any trimming required to install the Curt Trailer Hitch Receiver - Custom Fit - Class III - 2" # C37RV on your 2025 Kia Sorento Hybrid EX. I’ve attached an install video you can check out, looks like the exhaust will need to be lowered...
    view full answer...
  • Will Hitch From 2017 Kia Sorento Fit 2022 Sorento
    Hello Nolan; the # e98843 fits the 2016-2020 models of the Sorento. You will need a different hitch since there have been changes to the frame that won't allow the old one to fit. We don't have an etrailer hitch for the 2022 but you can use the Curt # C37RV. It looks like you had trailer wiring which will also need to be replaced. If you have the factory tow package you need the # CU94FR. If you do not have the factory tow package you can use the # C99DR if you have LED taillights or...
    view full answer...
  • Trailer Wiring Harness that Fits 2021 Kia Sorento SX
    Hey Jim, we had a customer of ours with a similar Kia Sorento SX to yours let us know that the Curt harness part # C63RV did fit so it would work great for your 2021 model. Do you have a hitch already?
    view full answer...
  • How Much Can I Tow With My 2025 Kia Carnival SX Prestige and What Do I Need
    Hey, Sheri! I’m happy to help with that! After looking into your 2025 Kia Carnival, it’s rated to tow up to 3,500 lbs with a 350-lb tongue weight. You can double check those numbers on the sticker inside the driver’s side door jam, that’ll give you the exact specs for your specific vehicle. We do have a hitch, part # e36KR, that is rated for 600 lbs tongue weight but you always want to go off the weakest link, which in this case is your Carnival. Given that, your best setup would be...
    view full answer...

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


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Chris R
Video Edited:
Chris R
Employee Jonathan Y
Video Edited:
Jonathan Y
Employee Wilson B
Updated by:
Wilson B
Employee Andy C
Installed by:
Andy C
Employee Thomas T
Video by:
Thomas T
Employee Sabrina W
Written by:
Sabrina W
Employee Ian F
Test Fit:
Ian F

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