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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
2018 Thor Quantum Sprinter Motorhome
CURT

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

Part Number: C93RV
In Stock
$105.95
Retail:$167.95
You Save: $62.00
Custom Fit Vehicle Wiring
Not Confirmed to Fit

2018 Thor Quantum Sprinter Motorhome

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Easily add a 4-way trailer connector with this custom-fit harness. The T-connector plugs into existing wiring - no cutting needed. Powered converter protects vehicle circuits and ensures consistent trailer lighting for safe towing in any conditions. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C93RV 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.
  • All Info
  • Reviews (4)
  • Q & A (0)
  • Videos (1)
  • Photos

CURT Custom Fit Vehicle Wiring - C93RV

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

Easily add a 4-way trailer connector with this custom-fit harness. The T-connector plugs into existing wiring - no cutting needed. Powered converter protects vehicle circuits and ensures consistent trailer lighting for safe towing in any conditions.


Highlights

  • Custom-Fit For Easy Installation: Plugs directly into existing vehicle wiring, no cutting needed.
  • Powers Essential Trailer Lights: Supports brake lights, turn signals, and running lights.
  • Powered Converter For Safety: Uses a direct battery connection to avoid overloading circuits.
  • Fully Insulated Wiring: Reduces risk of shorts and interference with other electronics.
  • Weather-Resistant Construction: Protective sleeve and sealed connections prevent corrosion.
  • Complete Installation Kit Included: Comes with fuses, connectors, and zip ties for a secure fit.

Features to Know About

Straightforward Installation, But Plan for Access

The vehicle's wiring harness is often behind a trim panel or under the cargo floor. Some vehicles may require removing interior panels or lifting carpeted sections to reach it, but once accessed, the harness installs easily with quick-splice connectors.

No Cutting or Splicing Needed: Custom-Fit T-Connector

Plugging in a trailer shouldn't mean tearing into your vehicle's wiring. This custom-fit T-connector snaps directly into your factory wiring harness, so you can get your trailer lights up and running without any cutting or splicing. Just plug it in, and you're ready to tow.

Reliable Trailer Lighting for Every Trip: Powers Brake, Turn, and Running Lights

A well-lit trailer is a safe trailer. This 4-way wiring harness keeps your trailer's brake lights, turn signals, and running lights powered and in sync with your vehicle. Whether you're hauling a boat to the lake or a camper to the mountains, your lights stay bright and visible.

Prevents Overloaded Circuits: Powered Converter for Safe Towing

Some vehicles can't handle the extra electrical load of trailer lights. The built-in powered converter draws power directly from your battery, ensuring a steady, protected current to your trailer while keeping your vehicle's circuits from overloading.

Keep Wires in Check: Fully Insulated and Weather-Resistant

Towing means exposing your wiring to dirt, rain, and road grime. This harness features fully insulated wires and a sealed converter, helping to prevent shorts and corrosion. It's built to withstand the elements so you can tow with confidence in any weather.

Everything You Need for a Clean Install: Complete Kit Included

No extra trips to the hardware store - this kit comes with everything you need. With fuses, zip ties, and connectors included, you can complete the installation without hunting down extra parts.

Specs

Maximum amperage:

  • Stop/turn lights: 5 amps per circuit
  • Tail lights: 7.5 amps per circuit

Warranty:

  • 1-Year limited warranty


56540 CURT T-Connector Vehicle Wiring Harness with 4 Pole Trailer Connector

Installation Details C93RV Installation instructions

This Product Fits The Following Vehicles



California residents: click here


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

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 - C93RV

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 this harness has been designed to fit your 2025 and newer 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 if this harness will work for you or if we have something comparable that will work for you. Now this harness is going to give you a four way flat trailer connector at the back of your Camry to power your trailer signal lights. This will also be compatible with five, six, and 7 pole adapters.

Those adapters are sold separately. As you notice, this does come with a dust cap to cover up those connections when the plug is not in use. And so, as you know, a well-lit trailer is going to be a safe trailer. This four-way wiring harness is going to keep your trailer's brake lights, turn signals and running lights all powered and in sync with your Camry. So whether you're hauling a boat to the lake or a camper to the mountains, your lights are gonna stay bright and visible with this harness.

Now these custom fit T connectors are going to snap directly into your factory's wiring harness so you can get your trailer lights up and running without any cutting or splicing. You're just going to plug this in and then you're gonna be ready to tow. Now the vehicle's wiring harness is often behind a trim panel or under the cargo floor, and some vehicles may require removing interior panels or lifting carpeted sections to reach it. But once accessed, this harness is gonna install easily with these T connectors and the instructions, of course, will guide you through that installation process and direct you as to where you can find the harness to plug in those T connectors. Now some vehicles can't handle the extra electrical load of trailer lights, so the built-in powered converter on this harness is going to draw power directly from your battery.

That's gonna give you a steady, protected current to your trailer while keeping your vehicle circuits from overloading. So this kit is basically gonna come with everything that you need. It's gonna come with a fuse holder, it's gonna come with a bundle of wire so that you can run the power wire from your module all the way to your battery to provide it with that power. You're gonna get cable ties, a fuse, butt connectors, and then it looks like a tube of silicone as well; and as I mentioned, instructions to guide you through the installation process. So virtually everything that you're going to need without any extra parts.

But there is one part that I would like to mention that I believe would be helpful for you. It is recommended that you use a small amount of dielectric grease on all of your electrical connections like the plugs on the vehicle and the four pole connector itself. That grease is designed to help prevent electrical failures caused by corrosion and moisture. So on your screen, I am including the item number for that grease. You can just take that number, pop it in the search filter on our website. That will take you to that 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 it was helpful for you. Again, my name is Andy. Thank you for joining me.

Customer Satisfaction Score:

Ratings & Reviews

5.0

4 reviews
Easily add a 4-way trailer connector with this custom-fit harness. The T-connector plugs into existing wiring - no cutting needed. Powered converter protects vehicle circuits and ensures consistent trailer lighting for safe towing in any conditions.

by:
2025 Toyota Camry

Super easy to install. Worked perfect. Only thing I didn't get in the package was the silicone and not enough zip ties.



by:
2025 Toyota Camry

Everything was there, easy to hook up once I figured out I had to remove taillight..Thank You !



by:

What is needed...thank you



by:
2025 Toyota Camry


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Info for this part was:

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

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