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

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

Part Number: 56083
In Stock
ChristmasTree SantaHat Arrives before Christmas SantaHat ChristmasTree
$20.00
Retail:$39.52
You Save: 49%
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.

Add to cart
CURT Trailer Hitch Wiring - 56083
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

Customer Photos

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connector plugs directly into OEM tow package port - no cutting, splicing or tapping required. 1-800-940-8924 to order CURT custom fit vehicle wiring part number 56083 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 for Factory Tow Package - 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
  • All Info
  • Reviews (389)
  • Q & A (0)
  • Photos

CURT Custom Fit Vehicle Wiring - 56083

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

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connector plugs directly into OEM tow package port - 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 rear bumper
    • Plug in connector
  • Comes with dust cap for 4-way flat connector
  • Limited 1-year warranty


Installation

This custom-fit T-connector plugs into your vehicle's factory tow package wiring harness, which is located behind the rear bumper, along the driver's-side frame rail.


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 plug on your automobile and the 4-pole connector itself - to help prevent corrosion.



56083 CURT T-Connector - OE Replacement 4-Flat

Installation Details 56083 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:


Customer Reviews

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector - 56083

Average Customer Rating:  4.9 out of 5 stars   (389 Customer Reviews)

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

by:

The wiring worked out great! It was an exact fit for my car. This is really a great website with plenty of technical information for making a buying decision and plenty of videos to help support the installation process. After a year of you something zero problems.

Jerry profile picture

Jerry

11/10/2024

No Issues after 1 year



by:

When it comes to quick, slick, and easy DIY relative to a trailer hitch wiring harness for trailer lights, this puppy is the ticket! I am not a very technically adept individual and so having the simplicity that this plug-and-play harness offers is HUGE!



by:

Took my local independent garage only 45~ minutes to Completely install and wire. The 6" cut of the underneath plastic is about 8"-12" depending on car FYI. Good assistance via phone and a perfect recommendation. Nice quality hitch! Wiring is plug and play!



by:

Worked great. Connected right up to the OEM plug for easy install. Perfect length to run to hitch receiver



by:
2015 Lexus RX 350

Shipping was prompt and extremely well packaged. I received timely updates on the progress of my order (which was much appreciated as I needed this an upcoming trip). Both the recommended hitch and wiring harness were a perfect fit. The installation video and PDF were informative and accurate, making the installation stress free and within the estimated timeframe. One hint: if working alone, a floor jack to support the hitch works as well as another set of hands.

This was my second order from E-trailer. Their products and support are excellent.



by:

Easy Plug and play

David profile picture

David

4/22/2024

Lights working fine on Trailer Hitch Hauler. No issues.



by:
2010 Lexus RX 450h

Literally cannot get simpler to install than this. Luckily, my 2010 Lexus Rx450H was set up with the factory tow package (and luckily I kept the window sticker to verify that!), so once the trim panel below the bumper is removed, the electrical connection is on the driver's side frame rail, capped. Remove cap, plug in the wiring harness, zip tie to the cross bar of the hitch, you're done. Shipping was super fast--ordered on Wednesday 6-14-17, scheduled for arrival 6-19-17, arrived late morning 6-17-17. Thank you!

I'm using it to tow troop equipment and canoe trailers for my son's Boy Scout events.



by:
2015 Lexus RX 350

As easy as all the reviews said it would be. Took a little while to get new bolts started that replaced OE self-tapping bolts. But it all lined up and gave a professional finished look when completed. Now I'm ready to help my friend install the hitch on his wife's RX. Won't hesitate to recommend etrailer.com to all in the future.



by:

Great product, excellent support. Very easy install in 25 minutes. Install directions very good. Holes are slotted in hitch, would recommend starting all bolts leaving bolts loose, then center hitch by bumping with wooden block before tightening. Then torque to spec.



by:
2013 Lexus RX 350

Super easy to install especially if you have the tow prep package on your car. The bracket makes the look more professional.



by:

Very happy with my etrailer purchase. The dealership wanted to charge $1,700.00 to install my hitch. Etrailer saved me significantly without any hassles. I was able to purchase and have my mechanic install a hitch for 1/3 of the dealership cost.



by:

Fits perfectly ... installed in less than an hour with a second set of hands from my son. And the genesis that snapped right in to the prewired rx350 tow wiring package .... all at 1/3 of the price the Lexus dealer was going to charge !!



by:
Lexus

This was an easy installation. My Lexus has the built in towing package.



by:
2013 Lexus RX 350

All I can say is, thanks etrailer for having the right product for the Job!! Product as advertised! Installation was a breeze taking only 45 minutes. I did the installation without raising the vehicle up off the ground. As a side note, the Lexus dealer wanted over $700 for doing the same job, no surprise there..



by:

Easy to install with on line videos to assist you. Very affordable compared to the car dealership



by:
2021 Lexus RX 350

WOW. Fast shipping and packaged well. Great video to assist if needed. I made a call to verify that it fit my car. Very quick phone pick-up. Very pleasant and helpful.
The hitch is barely noticeable.
I give this place a 10.



by:

The shipping was a little slow. All my other packages came 2 days earlier.



by:
2017 Lexus RX 450h

fast service, correct parts!



by:

The trailer hitch is an excellent product, well made & easy to install. I give it a 5 star rating. The wiring harness also was good quality
and worked well.



by:
2017 Lexus RX 350

The video combined with actual product made this install easy. The connector was exactly where it should be, it plugged in and with the 5 ties, it went snuggly into place.



by:
2015 Lexus RX 450h

Excellent product. really east to use



by:

Hitch fit perfectly and instructions were clear. It would be nice if there were a method for stowing the wiring harness connector out of sight.



by:
2019 Lexus RX 350

you guys did a great job. you got me exactly what i asked for and got it out quick. the trailer hitch is actually much better than i was expecting. it is very heavy duty and mounts to the vehicle with 6 bolts instead of just 4 bolts like other manufacturers hitches do. i can't wait to install it and tow something lol. once again thanks for the great job and nice product



by:

The product is probably fine but I needed an electronic converter for my vehicle since it didn't have the trailer wiring from the factory. This was not clear from the eTrailer description.

Jenny N. profile picture
Etrailer Expert

Jenny N.

3/4/2022

When entering the year, make, and model of the vehicle and then ing trailer wiring harness there is a down menu asking if the vehicle has a factory tow package or does not have one. For a 2015 Lexus RX 450h without a factory tow package you will want part # 118255.



by:
2018 Lexus RX 350

Fit perfectly on our Lexus RX 350 and there was plenty of length to allow you to route the wiring harness any way you choose. The video series etrailer puts together on how to install the time is wonderful and very helpful, especially for those who learn by watching someone do the install first.


25
389
Show More Reviews

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

  • Recommended Trailer Hitch for a 2022 Lexus RX 350
    Yes, the Draw-Tite Trailer Hitch item # DT58GR does fit the 2022 Lexus RX350s. This hitch is custom fit and bolts directly to your RX 350 with included hardware. I have linked a picture and an installation video below so you can follow along with the process and see what the final look will be. If you need a wiring harness you will Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector item # 56083. This custom-fit T-connector plugs into your vehicle's...
    view full answer...
    Image 1 for
  • Can The Bumper Fascia On a 2022 Lexus RX 350 Be Trimmed With a Razor Blade?
    It is very difficult and dangerous to try to trim the fascia on your 2022 Lexus RX 350 using a razor blade when you install the Draw-Tite Max-Frame Trailer Hitch Receiver # 75540. Since you have to trim the rear fascia as well as a couple panels under your Lexus to install the receiver you have a couple options. First you can take your Lexus to a service center before you install the receiver to have the panels trimmed per the manufacturer instructions that are linked below. You can also...
    view full answer...
  • Trailer Hitch Receiver Compatibility With Rear Lift Gate Kick Sensor On a 2022 Lexus RX 350 F-Sport
    The Draw-Tite Max-Frame Trailer Hitch Receiver # 75540 has been successfully installed on other 2022 Lexus RX 350 F-Sports with the kick sensor for the rear lift gate. Do note that the receiver tube will limit the range and function of the kick sensor and you may no longer be able to use the function. With the Hidden Hitch by Draw-Tite Trailer Hitch Receiver # DT58GR it allows you to remove the receiver tube when not needed. Since there will not be a receiver tube there is nothing to block...
    view full answer...
  • Recommended Hitch for a 2022 Lexus RX 350
    Yes, we do have a trailer hitch for your 2022 Lexus RX 350. It is the Hidden Hitch by Draw-Tite item # DT58GR. This hitch is custom fit and bolts directly to your Lexus with included hardware. The reason I like this hitch is that the 2" x 2" receiver is completely removable. When you're not towing or using an accessory you won't be able to tell your Lexus has a hitch. The crosstube attaches behind the rear bumper and the receiver attaches behind the bumper as well. To tow with this hitch...
    view full answer...
  • Trailer Wiring for 2020 Lexus RX350 That Doesn't have OEM Tow Package
    Hey Shane, for your 2020 Lexus RX 350 that didn't have a factory hitch the trailer wiring that you honestly should have gone with is the part # C56217 which is for the versions of the vehicle that don't have the tow package. While your vehicle has the connector it's not active which is why it's not working as-is. Maybe Lexus dealer could activate the wiring harness but we don't have any info on that.
    view full answer...
  • Recommended Hitch for a 2020 Lexus RX350 F Sport
    The only hitch that will work with your 2020 Lexus RX350 F Sport is the Draw-Tite Trailer Hitch item # 75540. This hitch is custom fit and bolts to your Lexus with included hardware. This is a class III hitch with a 2" receiver. It has a 4,500 lbs towing capacity, and a 675 lbs maximum tongue weight. It is not rated to be used with a weight distribution system. I have linked an installation video below so you can see how to get this hitch set up. If you are planning on towing you will...
    view full answer...
  • Does the Draw-Tite Hitch 75540 Fit the F-Sport Model of the 2019 Lexus RX 350?
    Yes it does. Our website can be fun sometimes. I can confirm that the Draw-Tite Trailer Hitch item # 75540 does fit the 2019 Lexus RX 350 including the F Sport model. I have linked an installation video below so you can see how to get it set up. If you are planning on towing you will also need a wiring harness item # 56083 for the Lexus's with the factory tow package or item # 119250KIT for the vehicle's without the tow package and a ball mount kit item # C45534.
    view full answer...
  • Will Hidden Hitch by Draw-Tite Fit 2022 Lexus RX 350
    Yes, the Hidden Hitch by Draw-Tite Trailer Hitch Receiver # DT58GR will fit your 2022 Lexus RX 350. This has been confirmed from Draw-Tite to fit all 2022 models. What you saw came from before the hitch had been tested and confirmed to fit on your vehicle. If you plan on doing some towing, you will also want the # 56083 for wiring. If you need a ball mount, I recommend the etrailer Ball Mount Kit # 989900. This kit has two ball mounts, one with a 3/4" rise or 2" drop and the other with...
    view full answer...
  • Recommendations For Trailer Hitch Receiver And Wiring On 2017 Lexus RX 350
    For your 2017 Lexus RX-350, I recommend the Curt Trailer Hitch Receiver - Custom Fit - Class III - 2" # C73DR. For your trailer wiring, I recommend the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector # 56083. This custom-fit T-connector plugs into your vehicle's factory tow package wiring harness, which is located behind the rear bumper, along the driver's-side frame rail. The No-Drill Mount Bracket Short # 18140 along with the mounting...
    view full answer...
  • Do You Have a Hitch for a 2021 Lexus RX 350 F-Sport?
    Yes, we do! The Hidden Hitch by Draw-Tite Hitch item # DT58GR you were looking at actually fits both the F-Sport and standard model of the 2021 Lexus RX 350. This hitch is custom fit and bolts to your Lexus with included hardware. I really like this hitch because the 2" receiver is detachable and the crossbar installs behind your rear bumper. This means you won't be able to see it when you're not towing or using the receiver for an accessory. If you are planning on towing you will also...
    view full answer...
  • Trailer Wiring that Fits 2023 Lexus RX 350
    For your 2023 Lexus RX 350 we have the # 119190KIT for if you do not have the tow package (this is a universal style wiring kit), or we have the # 56083 for if the vehicle does have the factory tow package. This plugs in easily and does not require any splicing unlike the # 119190KIT.
    view full answer...
  • Installing Tow Ready Mounting Bracket with Curt T-Connector Wiring Harness and 4-Pole Flat Connector
    When using the Tow Ready Mounting Bracket # 18144 to mount the 4-way trailer connector from the Curt T-Connector Vehicle Wiring Harness # 56083, you should not have to cut the harness in any way. After installing the mounting bracket, you will simply route the 4-way through the bracket opening and input the cap on the end of the connector. The opening on the bracket is 1-3/8 inches in length horizontally. You can use the bracket along with the short bracket # 18140 for a no drill application....
    view full answer...
  • Curt Trailer Wiring Harness Not Working W/ A 2020 Lexus RX 350 Without OEM Towing Package
    I went ahead and did some investigating and it turns out that the reason your Curt T-Connector Vehicle Wiring Harness for Factory Tow Package # 56083 is not working is due to the fact that you do not have the factory towing package. Instead, you're going to want to use the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56217, as # 56083 was designed to be used with vehicles that have the factory towing package. This would be the workaround to taking your...
    view full answer...
  • Location of Trailer Tow Package Connector on 2015 Lexus RX350
    The connector that the Curt # 56083 trailer wiring harness plugs into is located right behind the bumper on the driver's side rear corner of the vehicle as shown in the linked video and in the provided photo. There might be a underside cover that needs to be removed to access the connector as shown in the video.
    view full answer...
  • Trailer Hitch Recommendation for a 2016 Lexus RX 350 Sport
    I checked with Curt and the Curt hitch part # C13272 does not have any fit exclusions for Sport models so it would fit your 2016 Lexus RX 350 Sport and work well. If you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with a 2-3/4 inch rise or 4 inch drop. It also includes a 1-7/8 inch ball, 2 inch ball, hitch pin with clip, and a storage bag. If the ball mount kit does not...
    view full answer...
  • Trailer Wiring Harness Recommendation for 2017 Lexus RX 350 with Towing Package
    For a 4-way trailer wiring harness for your 2017 Lexus RX350 that has the tow package you would want the part # 56083 which is a confirmed fit. This harness does not have a converter box built into it and it just plugs right into a port you have at the rear of your vehicle. I attached an install video for more info for you to check out as well.
    view full answer...
    Image 1 for
  • Correct Trailer Wiring For My 2010 Lexus RX350 With Factory Tow Package
    There is a possibility of 2 different problems. The first is that if you have the front wheel drive model RX350 and the factory tow package, then the Curt Custom Fit Vehicle Wiring, part # 56083 is not compatible with your 2010 Lexus RX350. The other possibility is that the plug that you found on your 2010 Lexus RX350 still has the protective cover on the plug. If this is the case, you will just need to remove the protective cover and part # 56083 will plug right in. If you have a front...
    view full answer...
    Image 1 for
  • Location Of Curt Wiring Harness Connections For a 2021 Lexus RX 350L Without Tow Package
    For the Curt T-Connector Vehicle Wiring Harness # C56217 on your 2021 Lexus RX 350L the connectors will be located in a different spot. The 10 pin connector should be located on the passenger side just below the taillight. The 4 pin connector will be underneath the drivers side bumper cover. It may require you to use the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package # 56083 to make that connection. The video that I linked below will help you find the 4-pin connector.
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • Trailer Wiring Recommendation for 2015 Lexus RX 350
    Based on our experiences and what you listed as having in your 2015 Lexus RX 350 all you'd need for trailer wiring is the 4-way kit part # 56083 that you referenced and you'd be set. I attached an install video for thits for you to check out too but I believe you may have viewed it already. Since you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with a 2-3/4 inch rise or...
    view full answer...
  • Best Trailer Hitch Recommendation for a 2013 Lexus RX 350
    All of the hitches available for your 2013 Lexus RX 350 are pretty similar. The biggest difference is that the Curt Hitch part # C13143 can fit the F Sport and non-F Sport models. Because of that I would recommend the Curt hitch. The trailer wiring available for your vehicle, part # 56083, is only available for the models of the vehicle that have the factory tow package. Without the factory tow package use # 118255. I attached videos for you to check out as well.
    view full answer...
  • Troubleshooting Curt Vehicle Wiring Harness 56083 On 2021 Lexus RX 350 Not Having Power
    The Curt T-Connector Vehicle Wiring Harness for Factory Tow Package # 56083 requires your 2021 Lexus RX 350 to have the factory tow package which includes a factory installed module to power the trailer lights. Since your harness does not have power I recommend checking that there is a module plugged into the 10 pin connector which may be inside the luggage compartment, on the passenger side below taillight, behind little plastic removable bin. If no module is plugged in you will need...
    view full answer...
  • Hitch And Wiring Harness Recommendation For My 2022 Lexus RX 350
    The hitch receiver that I recommend is the Curt Trailer Hitch Receiver - Custom Fit - Class III - 2" # C73DR. This hitch receiver has a maximum tongue weight of 525 lbs and a maximum gross trailer weight of 3,500 lbs. or 4000 when using a weight distribution system. Next, you will need a wiring harness for your vehicle. You did not indicate if you have a factory tow package, so I will provide you with recommendations for both options. You can check to see if you have the factory tow package...
    view full answer...
  • Curt Trailer Hitch Recommendation for a 2016 Lexus RX350 F Sport
    We checked with Curt and the Curt hitch part # C13272 does not have any fit exclusions for Sport models so it would fit your 2016 Lexus RX 350 Sport and work well. Because of that we would recommend it for you. If you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with a 2-3/4 inch rise or 4 inch drop. It also includes a 1-7/8 inch ball, 2 inch ball, hitch pin with clip,...
    view full answer...
  • Troubleshooting Malfunctioning Trailer Wiring Harness on 2013 Lexus RX350
    I'm assuming you have a 2013 Lexus RX350. Did the # 56083 wiring harness ever work, or did it work for awhile and then stop? From my research, the connector should work once plugged into the factory towing connector under the vehicle, unless your vehicle isn't equipped with the tow package. If the tow package wasn't purchased, you'll need to add the fuses or relays to activate the tow package. I'd recommend you check your owner's manual or with Lexus, as I was unable to access an online...
    view full answer...


< Previous
123. . .4



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


Info for this part was:

Employee Joe V
Test Fit:
Joe V
Employee Nicholas E
Test Fit:
Nicholas E
Employee Randy B
Test Fit:
Randy B
Employee Shane H
Test Fit:
Shane H
Employee David F
Test Fit:
David F
Employee Mike L
Expert Research:
Mike L
Employee DeAnne T
Expert Research:
DeAnne T
Employee Robert G
Expert Research:
Robert G
Employee Patrick B
Expert Research:
Patrick B
Employee Michael H
Expert Research:
Michael H
Employee Jeff D
Expert Research:
Jeff D
Employee Reno H
Expert Research:
Reno H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Andrew K
Video by:
Andrew K
Employee Alan C
Video by:
Alan C
Employee Zach D
Video by:
Zach D
Employee Michael B
Video by:
Michael B
Employee Thomas T
Video by:
Thomas T
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Kathleen M
Video Edited:
Kathleen M
Employee Dustin K
Video Edited:
Dustin K
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

At etrailer.com 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.


Product Experts Available Now!
Call 1-800-940-8924