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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
2007 Chrysler PT Cruiser
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CURT

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

Part Number: C38RJ
In Stock
$72.24
Retail:$105.95
You Save: 32%
Custom Fit Vehicle Wiring
Not Confirmed to Fit

2007 Chrysler PT Cruiser

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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
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 C38RJ 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 (9)
  • Q & A (0)
  • Videos (1)
  • Photos

CURT Custom Fit Vehicle Wiring - C38RJ

Highlights

  • Custom Fit for Your Vehicle: Works with your vehicle's wiring
  • Tow Without Factory Prep: 4-way flat connector powers trailer lights for safe towing.
  • Plug-and-Play Install: T-connector plugs in behind tail lights—no cutting or splicing.
  • Built-In Converter: Powered module syncs trailer and vehicle signals for proper function.
  • Clean Hidden Setup: Harness tucks out of sight for a factory-look finish.
  • Ready for Upgrades: Works with 4-flat accessories like adapters or extenders.

Features to know about

Installs Without Cutting or Splicing: Plug-In Harness

Wiring a trailer doesn’t have to mean cutting into factory wires. This Curt T-Connector plugs straight into the vehicle’s existing wiring for a true plug-and-play setup. No splicing, no guesswork—just connect it and you’re ready to tow with a 4-pole flat trailer connector.

Keeps Factory Wiring Hidden and Protected: Clean OEM-Style Fit

The harness tucks neatly behind panels and uses existing factory grommets for a clean install. That means no loose wires hanging out and nothing exposed to the elements. Everything stays protected while maintaining the vehicle’s original look.

Powers Trailer Lights Reliably: Built-In Converter Module

The powered converter keeps the trailer lights working properly without overloading the vehicle’s circuitry. It supplies the right power for running, brake, and turn signals through the 4-flat connector so the trailer lights stay bright and consistent.

Ready to Use Out of the Box: Designed for Vehicles Without a Tow Package

No factory tow wiring? No problem. This harness is built for vehicles that don’t come with a tow package, so you can add trailer lighting without extra parts or modifications. Plug it in, route the wires neatly, and you’re good to go.

Specs

Technical Specifications

  • Image: Comparison chart showing CURT T-Connector vehicle wiring harnesses with labeled connectors and wiring layouts for trailer hitch installation.
  • Note:

56544 CURT T-Connector Vehicle Wiring Harness with 4 Pole Trailer Connector

Similar to Tekonsha 118763

Installation Details C38RJ Installation instructions

This Product Fits The Following Vehicles




Video of Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
Video Thumbnail Video Player Dialog

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of CURT Custom Fit Vehicle Wiring - T Connector Vehicle Wiring Harness 4 Pole Flat - C38RJ

Hi everybody. Andy here with Etrailer.com. Let's take a real quick look at this CURT T-connector vehicle wiring harness with four pole flat trailer connector. Now at the time of the recording of this video, this wiring harness has been designed to fit your 2018 to 2024 Toyota Camry, and on custom fit parts such as this harness, I do recommend taking advantage of our vehicle fit guide here at Etrailer.com. Simply input the year, make, and model of your vehicle, and our fit guide will confirm that this will work for you, or if we have something comparable for you. So this could work on newer Camry's, but at the recording of this video, it's only for the, it only goes up to the 24.

So that's why you always wanna make sure that you use the fit guide. The video might not be up to date, so the fit guide will let you know if in fact this will work with the newer Camry'S beyond the 2024. If I fail to mention, this will work with the hybrid and non-hybrid models, but this harness is going to give you a four pole flat trailer connector at the back of your Camry to power your trailer signal lights. This will be compatible with five, six, and seven pole adapters. Those adapters are sold separately from this.

And the black box here is a powered taillight converter. This is going to make sure that your Camry's wiring matches that of your trailer. This will connect directly to your Camry's battery to avoid overloading its electrical system, reducing strain on your vehicle's wiring system. And by the way, CURT does build each converter using surface mount technology for consistent, reliable performance. It maximizes trailer light yield and intensity while producing minimal heat, and that's gonna ensure superior operation in rough road conditions.

Now this harness is designed to connect quickly and easily. You will need to locate your Camry's wiring harness, which is gonna be located behind the driver's side and passenger side taillights. You will have to remove all your trunk floor coverings, and the rear scuff panel to access that harness. And then once you locate the connectors, you're gonna carefully separate them. You wanna be sure that you don't break the tabs on the connectors themselves, and then you're gonna insert these T connector ends between your Camry's wiring connectors, and lock them into place.

Now these T connectors are custom fitted for your Camry, so they are going to match up perfectly with the connection points on your car. They're gonna snap and lock together for a tight, secure fit. Now once you have these plugged in, you will need to make a good ground connection, and the ground wire is this white wire, and if you notice, it does have a ring terminal attached to it, and it also comes with that self-tapping screw, and so that's going to help you get this grounded to a suitable location such as your Camry's frame or cross member. You do wanna make sure that the surface is clean and rust free. Then you will need to mount the converter box to a safe, out of the way location. You can do that a few different ways. If you happen to have another mounting screw, a self-tapping screw, you could use that, and run it through the hole here. This does come with double-sided tape. That might hold it for a while, but especially during hot summer temperatures, I could potentially see this coming undone. So maybe use this as a secondary way to a screw that you might have on hand, or maybe use even one of the cable ties that's included with this kit to secure this in a safe, out of the way location. Next, you will need to run the hot lead to your Camry's battery. That's this short black wire coming out of the converter box. This short black wire is going to get connected to one end of this included bundle of black wire using one of the included butt connectors, and then the other end of this bundle is gonna get routed to your vehicle's battery. And once you have this routed to the battery, you're going to take this fuse holder, and connect one of the wires with a second butt connector to the routed wire. And then the other half of this fuse holder is going to get that ring terminal attached to it, and then that ring terminal is going to connect to the positive post of your Camry's battery. This does come with a 10 amp fuse, and so you'll just pop that into the fuse holder. And if you notice, it does have a cap to keep that fuse safe and protected. You can secure any slack in your wiring, any excess that you might have with the cable ties that's included with this kit. And then once the installation is complete, the four-way connector can be stowed in an out of the way location within your trunk. Instructions are included to guide you through the installation process. And it is also recommended that you use a small amount of dielectric grease on all of your electrical connections, like the plugs on the vehicle end, and the four pole flat connector itself. That grease is designed to help prevent electrical failures caused by corrosion and moisture. So on your screen, I am including our model number for that grease. You can take that model number, pop it in the search field of our website. That will take you to the grease, and you can add that to your order if you so desire. Well, I think that's gonna wrap up our look today. I do hope that our brief time together was helpful for you. Again, my name is Andy. Thank you for joining me.

Customer Satisfaction Score:

Ratings & Reviews

4.9

9 reviews
5 Stars
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4 Stars
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I did not know which was left and which was right side had to redo it. It worked well.
by:
Great Service and great product.
by:
2024 Toyota Camry
A straight forward and easy instal. Prefect.
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2020 Toyota Camry
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See what our Experts say about this CURT Custom Fit Vehicle Wiring

  • Is There a Stealth Hitch Available for a 2018 Toyota Camry XLE V6?
    Hello Josh, I really wish I had a Stealth Hitch option for your 2018 Toyota Camry XLE V6, but unfortunately Stealth does not currently offer a hitch for the Camry. That said, the Curt Trailer Hitch Receiver - Custom Fit - Class I - 1-1/4" # C11576 is still a great option. It is custom fit for the 2018 Camry and installs using existing mounting points on the vehicle, so no drilling into the frame is required. Even though it is the only hitch receiver option currently available for your...
    view full answer...
  • Recommend 4-Way Trailer Wiring Harness for a 2019 Toyota Camry
    Nothing at all Charles. The Curt Wiring Harness item # C38RJ fits both the hybrid and standard models of the 2019 Toyota Camry. Our categorizing system is a bit confusing, which is why it says hybrid and excluding hybrid on the product page. Hope this clears that up. The Curt item # C38RJ is custom fit and plugs directly into your Camry's tail light wiring harness. It requires no cutting but you will have to drill in a small self-tapping screw for the ground. The Curt item # C38RJ will...
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Wilson B
Updated by:
Wilson B
Employee Andy C
Installed by:
Andy C
Employee Sabrina W
Written by:
Sabrina W

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