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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 # C89KR
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Our Price: $108.62
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 existing wiring - no cutting, splicing or tapping required. Converter is made using SMT to ensure superior performance. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C89KR 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 (58)
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CURT Custom Fit Vehicle Wiring - C89KR

  • Trailer Hitch Wiring
  • 4 Flat
  • 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 - no cutting, splicing or tapping required. Converter 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
    • Locate connection points behind tail lights
    • Plug in T-connector
  • Includes a tail light converter to ensure that your vehicle's wiring matches that of your trailer
  • 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
  • Limited 1-year warranty


Installation

This custom-fit T-connector plugs into your vehicle's wiring harness.


Once installation is complete, the 4-way connector will be stowed in a secure location.


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.


Tail Light Converter with Surface-Mount Technology

A tail light converter is built into this T-connector. 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.



56442 CURT T-Connector - Surface Mount Technology - 4 Wire

Installation Details C89KR Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - C89KR

Average Customer Rating:  4.9 out of 5 stars   (58 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 - no cutting, splicing or tapping required. Converter is made using SMT to ensure superior performance.

by:

This harness was just too easy to install!
A
real plug and play. The hardest part was pulling the tail lights out and replacing.
Work great and easily hung on hitch



by:
2019 Hyundai Tucson

Install videos are extremely helpful. Fast shipping and amazing service. I would definitely recommend Etrailer to others.



by:

Great product! I received my order within a few days of ordering it. The install was very simple. The longest portion of the install is routing the power wire from the battery to the rear of the vehicle. I used a "fish tape" to help with the task and followed the brake lines for most of the route. The instructions were easy to read and very simple to follow. The connectors fit perfect and within an hour (plenty of water breaks because the of the Oklahoma heat), I had it installed. Works perfect! I would suggest that you have a few more zip ties on hand to helps secure the power wire.

Great job etrailer.com! Perfect company (as usual)!!! Thanks for the quick shipping!


Comments
Great product. No issues at all and is still working perfect.
Brent - 07/06/2021

by:
Hyundai Tucson

Wiring harness was easy to install per the instructions and every part appears to be high quality. Wire lengths provided were much more than enough for the Tucson it was installed in, with several feet to spare for each wire.


Comments
Still no issues. Wiring harness continues to function properly.
Michael - 07/20/2021

by:

Fairly easy install but be prepared for some work involved running the power wire up to the battery. I have ramps with platforms, a floor jack and jack stands that were all used so I could remove a protection panel.



by:
2019 Hyundai Tucson

This kit is great! It is designed to take all of the guesswork out of wiring trailer lights, and it delivers. Watch the video and you will be a pro at installing this system. I can't believe how easy eTrailer makes this somewhat mystical installation such a breeze. What a great Company!



by:

Good quality, great service as always from etrailer. A little more complicated on some Kia models due to needing the power run from the battery, but we had a professional vehicle accessory place so that wire after we did the rest of the effortless initial install, and everything came together just fine.



by:
2019 Hyundai Tucson

Everything was a perfect fit! Great deal



by:

Everything from ordering, shipping, quality, price and customer service was perfect. Thank you.



by:
2019 Hyundai Tucson

I liked the wiring harnesses for easy connection the lights. And even though this needed to be connected to the Positive terminal it was alright.

My only complaint is the module with all of the wiring needs a more secure method of attachment. Mounting tape provided was not sufficient. I ended up making a harness with Pipe Straps.



by:
2020 Hyundai Tucson

Perfect fix



by:

Amazingly easy to install!



by:

easy install, everything you need except zip ties to hold up wire to battery, followed break lines. Plugged right in.

Also ordered tow bar from this website.



by:

I finally routed the power to a cigarette plug in the trunk which is switched off when the engine is off so no possibility of draining the battery. Works great.



by:

Works great!



by:

Love the fact that there was no cutting or splicing of wires just plug in and it's ready to go. Product showed up in a timely manner along with a follow up telling me the company cares about their customers, I'm glad my fellow coworker told me about trailer.



by:

It was one of the easiest harness to in stall



by:

Installation instructions were incomplete and difficult to follow.



by:

Your great thank you



by:
2008 Kia Sedona

YOU FOLKS ALWAYS COME THROUGH. THANK YOU



by:

Sent in a timely manner, and order was correct



by:
Kia Soul

An excellent product. Easy to install on our 2020 KIA Soul.



by:
2020 Hyundai Tucson

This is a great wiring kit with fast shipping and really good instructions



by:

Service was great.



by:


Comments
Working exactly as advertised. Completely satisfied.
Scott - 06/02/2022
25
58
Show More Reviews

Ask the Experts about this CURT Custom Fit Vehicle Wiring



  • Trailer Wiring Harness For 2020 Kia Soul With LED Lights
    According to Curt the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # C89KR fit all models of the 2020 Kia Soul even with LED lights. This harness will give you a 4-pole flat at the rear of the Kia Soul. I have attached the installation instructions for your reference.
    view full answer...
  • Where Does the Converter Box for Curt Trailer Wiring Harness On a 2020 Kia Seltos Install
    The Curt T-Connector Vehicle Wiring Harness part # C89KR which is a fit for a 2020 Kia Seltos contains a converter box which will mount behind the taillights on the outside of the vehicle. The pigtail with green wire will then be run behind the bumper cover in front of the body panel to the other side.
    view full answer...
  • Can 12V Feed For Powered Taillight Converter Be Attached to Power Source Other Than the Battery
    When installing a powered taillight converter like # C89KR, Curt doesn't recommend attaching that 12V power feed to anything other than the positive battery terminal, so I can't recommend anything that would contradict the manufacturer's advice. Drawing the power directly from the battery serves to isolate the tow vehicle's sensitive electronics from any short circuits that might occur in the trailer wiring. Connecting the converter's power feed anywhere other than the battery or where...
    view full answer...
  • Trailer Wiring Kit Compatible With 2021 Kia Soul Without LED Taillights
    The T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118813 is a confirmed fit for both 2020 and 2021 Kia Soul without LED taillights.
    view full answer...
    Image 1 for
  • Trailer Wiring Harness For 2021 Hyundai Tucson Sport
    The good news is I have a solution for you! The only one you need is the Curt T-Connector # C89KR, which is our part number for their harness #56442. It sounds like you've been bombarded with lots of results of similar trailer wiring products. I can certainly understand why it might be both overwhelming and confusing to know which one is best. You listed three t-connector harnesses and one tail-light converter in your list, and two of them are the same part, just with different identifying...
    view full answer...
  • Recommended Hitch for 2020 Kia Soul EV
    I recommend the # 24985 Draw-Tite Sportframe Trailer Hitch Receiver for your 2020 Kia Soul EV. This is a confirmed fit for all models, including your EV, with the exception of the 1.6L Turbo. This Class I hitch has a maximum gross trailer weight of 2,000 lbs. and tongue weight of 200 lbs. If you plan on doing some towing, I recommend the # C89KR Curt T-Connector Vehicle Wiring Harness. This is a custom fit part for your Kia Soul. I have attached a video review for your reference.
    view full answer...
  • What Wiring Harness Works with My LED Taillights on My 2021 Hyundai Tucson?
    If you want to hook up a trailer with LED taillights to your 2022 Hyundai Tucson, I confirmed with Curt that the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C89KR will be compatible with LED-style lights. If you need help with installing the harness, I went ahead and linked a video that walks you through the process. If you need a hitch as well, I recommend the Curt Hitch - 2" # C13240. Not only does the 2-inch receiver allow compatibility with many accessories,...
    view full answer...
  • Trailer Wiring Harness Recommendation for 2021 Hyundai Tucson with LED Taillights
    The Curt trailer wiring harness part # C89KR is a fit for your 2021 Hyundai Tucson with LED taillights but I would actually recommend the Tekonsha part # 118812 as it has a more reliable converter box.
    view full answer...
  • Recommended Trailer Hitch and Wiring Harness for a 2021 Hyundai Tucson
    I was able to confirm with Curt and the Curt Trailer Hitch Receiver part # C13240 has been carried over as a fit for a 2021 Hyundai Tucson. In regards to the trailer wiring, you can use the Curt T-Connector Vehicle Wiring Harness part # C89KR. These are both great bolt-on/plug-in play options that will get you setup and towing in no time. In order to complete your setup, I'd add the etrailer Ball Mount Kit part # 989900.
    view full answer...
  • Install Instructions for Trailer Wiring That Fits 2020 Kia Soul
    You have the universal Curt trailer wiring harness that fits your 2020 Kia Soul with part # C59236 which we do have the easier to install kit part # C89KR which would have been my recommendation for you. But the type of taillights your 2020 Kia Soul has is separate so that would be the set of instructions you should follow in the install instructions that I have attached to this page.
    view full answer...
  • Can Hitch for 2020 Kia Soul Transport 300 lb Mobility Scooter
    The problem with hitch adapters is they cut the capacity of the hitch they are installed in by 50 percent and for a lighter duty vehicle like what you have you just don't have the tongue capacity for that. Especially since you want to carry 300 lbs in the carrier. You'd have to use the Curt hitch # C67FR that fits your 2020 Kia Soul to tow a smaller trailer. For wiring you'd then need the part # C89KR.
    view full answer...
  • What Tools are Needed to Install a Curt Trailer Hitch on a 2022 Kia Soul
    Installing the Curt Trailer Hitch Receiver # C67FR on your 2022 Kia Soul is something that I am confident that a moderate DIY person can handle. I have attached a picture from the installation instructions that shows the tools that you will need to accomplish this install. If you will be towing a trailer, the Curt T-Connector Vehicle Wiring Harness # C89KR will provide a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights.
    view full answer...
    Image 1 for
  • Difference In Factory Lifestyle Hitch And Frame Mounted Hitch 2021 Kia Seltos
    The biggest difference between a frame mounted hitch and a factory accessory (lifestyle) hitch that is on your 2021 Kia Seltos, is a hitch such as the Curt Trailer Class 1 Hitch Receiver Item # C65FR provides a maximum gross tow rating of up to 2,000 pounds. It also has a tongue weight rating of 200 pounds. The tongue rating is the amount of weight or force that will be loaded downward onto the hitch. Kia states that although the accessory or lifestyle hitch has a tongue weight rating...
    view full answer...
  • Recommended Trailer Hitch Receiver for 2021 Kia Seltos
    The trailer hitch I recommend for your 2021 Kia Seltos is the Curt Trailer Hitch Receiver # C65FR. I really like this hitch because its crosstube is concealed behind the bumper, as you can see by the accompanying photo. That means that only the receiver is going to show, which maintains the clean look of your '21 Seltos. I have added a link to the installation instructions for you to check out as well of the Curt Trailer Hitch Receiver # C65FR. Additionally, if you are looking to add...
    view full answer...
    Image 1 for
  • Recommended Trailer Hitch Receiver and 4-Way Flat Wiring Harness For a 2020 Kia Soul LX
    The LED vs non-LED wiring kits have to do with the type of tail lights that are installed on your 2020 Kia Soul. As the LX is the entry level it will have the non-LED tail lights. For that I recommend the T-One Vehicle Wiring Harness # 118813 for your Kia. I find the Tekonsha harness is more reliable than the Curt wiring. I recommend the Draw-Tite Max-Frame Trailer Hitch Receiver # DT25GR as the best receiver option. This is the only receiver we offer that has the larger 2" receiver....
    view full answer...
  • Hitch and Trailer Lights Wiring Harness for 2020 Kia Soul
    We have two hitch options for your 2020 Kia Soul. You can use the Curt # C67FR or the Draw-Tite # 24985 hitches. I feel the Curt is easier to install and has a glossier finish. If you are going to tow a trailer you will need a trailer lighting wiring harness. I suggest the Curt # C89KR which will work with LED lights or standard lights.
    view full answer...
  • Recommended Trailer Hitch Receiver For Using a Bike Carrier On a 2022 Kia Soul
    I recommend the Draw-Tite Sportframe Trailer Hitch Receiver # 24985 for your 2022 Kia Soul. This class I receiver is capable of supporting up to 200lbs for your bike rack. The Kuat NV 2.0 Bike Rack # NV12G is a great rack for your mountain bike. It has a built in work stand that allows for you to support the bike easily why you make modifications or repair any damaged components while you are out. The rack only weighs 52lbs and can support 2 bikes up to 60lbs each. Built in locks and cables...
    view full answer...
  • Hitch and Trailer Lights Wiring Harness for 2022 Kia Soul
    We have two great hitch options for your 2022 Kia Soul. You can use the Curt, # C67FR or the Draw-Tite, # 24985 options. Both are a Class 1 option, 1-1/4" x 1-1/4" with a max gross trailer weight rating of 2,000 lbs. and tongue weight of 200. Each is perfect for light-duty towing. All other things being equal, I prefer the Curt option due to feedback from neighbors that have used this option. The apparently better powder coating and the fact that it is made in the USA. For your lighting...
    view full answer...
    Image 1 for
  • Parts Needed To Install 7-way Connector and Curt Echo Wireless C51180 On 2012 Kia Sedona
    I would be happy to help! The Curt T-Connector # C56347 and # C89KR you were looking at are both confirmed to fit your 2012 Kia Sedona and will both give you the 4-way connector you need. There is not major difference between the harnesses so I recommend going with the most cost effective option at the time. Moving on to adding a 7-way connector to use the Curt Echo Wireless # C51180 I recommend the # ETBC7L which was designed specifically for the Echo. The # ETBC7L will plug into your...
    view full answer...
  • Recommended Trailer Wiring Harness and Towing Equipment for 2022 Kia Soul LX
    The Curt # C89KR does carry over for all models of the 2022 model Kia Soul. If you don't already have a hitch, I'd recommend the Curt # C67FR Class I hitch, which fits all Soul models except for those equipped with the 1.6L turbo engine. For a ball mount, use # C45521 along with the # PC2 hitch pin. For a trailer ball, use # 19256 for a 1-7/8 or # 19258 for a 2 inch ball.
    view full answer...
  • Recommended Trailer Hitch Receiver And Wiring Harness For a 2022 Kia Soul
    I recommend the Draw-Tite Sportframe Trailer Hitch Receiver # 24985 for your 2022 Kia Soul. I prefer this one over the Curt # C67FR as the Draw-Tite has more than 2 straight pieces of steel that connect the receiver to the cross tube. If you will be towing a trailer Draw-Tite recommends the Drawbar # 3592 which you will need to attach either a 2" Hitch Ball # 19258 or 1-7/8" Hitch Ball # 19256. The Curt T-Connector Vehicle Wiring Harness # C89KR will connect to the 4-way flat connector...
    view full answer...
  • Hitch With Highest Available Ground Clearance for 2022 Kia Soul
    As long as your Soul doesn't have the 1.6L turbocharged engine, we do offer a hitch fit from Curt and from Draw-Tite. As you can see from the provided side-by side photo, the Curt # C67FR sits much tighter up against the underside of the bumper than the Draw-Tite # 24985 hitch, so the Curt will provide much better ground clearance. If you'll be doing some light duty towing with the hitch, you'll also need a trailer wiring harness like part # C89KR, a ball mount like # C45521 and a # PC2...
    view full answer...
    Image 1 for
  • Does Trailer Hitch Recevier for 2021 Kia Seltos Require Drilling Into Frame
    No drilling into the frame of your 2021 Kia Seltos is required in order to install the trailer hitch receiver that fits it, the Curt Trailer Hitch Receiver # C65FR. This is a bolt-on installation and uses existing holes in your Kia's frame to install, which is why you don't have to drill. If you plan on doing some light towing with this hitch and your '21 Seltos, there are a few other parts you'll need, which are the following: - Vehicle Wiring Harness # C89KR - Curt Drawbar # C45521 -...
    view full answer...
  • How Does Trailer Hitch Receiver for 2022 Kia Seltos Attach To Frame
    No worries, the Curt Trailer Hitch Receiver, # C65FR is a no drilling needed installation. This is a bolt-on installation with no welding required or drilling of new holes. It uses existing factory hardware to be mounted to holes that already exist. This is a 1-1/4" x 1-1/4" Class I hitch with a max gross trailer weight of 2,000 lbs. and a max tongue weight of 200 lbs. If you plan on doing some light towing there are a few other parts you'll need too. - Vehicle Wiring Harness # C89KR -...
    view full answer...


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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 Kathleen M
Installed by:
Kathleen M
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Noah M
Updated by:
Noah M
Employee Jonathan Y
Video by:
Jonathan Y
Employee Conner L
Test Fit:
Conner L
Employee Kristina F
Written by:
Kristina F

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