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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
2001 Chrysler LHS
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CURT

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

Part Number: C45ZV
In Stock
$104.62
Retail:$154.95
You Save: $50.33
Custom Fit Vehicle Wiring
Not Confirmed to Fit

2001 Chrysler LHS

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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. 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 C45ZV 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 (13)
  • Q & A (0)
  • Videos (1)
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CURT Custom Fit Vehicle Wiring - C45ZV

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 at factory points—no splicing needed.
  • Protects Vehicle Circuits: Powered converter isolates trailer load from car wiring.
  • LED Light Ready: Works with LED trailer lights for reliable signal response.
  • Always Battery Safe: Black power wire won’t drain the battery when vehicle is off.

Features to know about

Installs Without Cutting or Splicing: Plug-In T-Connector

Wiring a trailer can be intimidating, but this Curt T-Connector takes the hard part out of it. The harness plugs straight into factory wiring, so no splicing or cutting is needed. You get a clean, reliable 4-flat connector ready for running, turn, and brake lights.

Protects Vehicle Electronics: Powered Converter Design

This harness includes a powered converter that draws power directly from the battery instead of the taillight circuits. That protects sensitive vehicle electronics and prevents overloads, especially when running LED trailer lights.

Always Ready Without Battery Drain: Smart Power Lead

The black power wire connects to the positive battery terminal, but it won’t drain the battery when nothing is drawing current. It stays inactive until trailer lights or accessories call for power, so you can leave it connected with confidence.

Handles LED Trailer Lights with Ease: Full Compatibility Out of the Box

LED trailer lights are becoming standard, and this harness is ready for them. It works seamlessly with LED setups, keeping signal timing sharp and consistent without flicker or warnings.

Simple, Clean Install for DIY Use: Plug-In and Go Design

Built for easy installation, the Curt T-Connector uses vehicle-specific plugs for a tidy fit behind trim panels or at the taillights. It’s straightforward to route and secure, leaving you with a professional-looking install that’s ready to tow.

Specs

Specs

  • Manufacturer: CURT
  • Product Title: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
  • Product Type: Trailer Hitch Wiring
  • Connector Type: 4 Flat
  • Connection Style: Plug-In
  • Connector Location: Vehicle End
  • Converter Type: Powered Converter
  • Towing Package Compatibility: No Tow Package
  • Visible: Yes
  • Plug and Lead: Yes

Comparison image showing multiple CURT trailer wiring harness models side by side, highlighting connector styles and wiring configurations for vehicle and trailer compatibility.


56521 CURT T-Connector Vehicle Wiring Harness with 4 Pole Trailer Connector

Similar to Tekonsha TK87VR

Installation Details C45ZV 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 Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector-C45ZV Spec Review

Hi, everybody, Andy here with etrailer.com. Let's take a look together at this Curt T-Connector Vehicle Wiring Harness with 4-pole flat trailer connector. Now, this vehicle wiring harness is custom designed to fit your 2022 and newer Chevrolet Bolt EUV. On custom fit parts such as this wiring harness, I do recommend taking advantage of our vehicle fit guide here at etrailer.com. Just input the year, make, and model of your vehicle, and our fit guide will confirm if this will work for you or if we have something comparable that will work for you. Now, this harness is going to give you a 4-pole flat trailer connector at the back of your vehicle to power your trailer's signal lights.

This is going to also be compatible with 5-pole, 6-pole, and 7-pole adapters, and those adapters are sold separately. And as you've already seen, this does include a dust cap for the 4-pole flat connector. And that dust cap is going to cover up those connection points on the plug when this is not in use. So this is going to protect the outlet, the plug here, from dust, debris, moisture, things like that. And as you can see, this does have a very tight fit, so you're not gonna have to worry about that cap accidentally coming off.

Then when you're ready to use it, you just slip it off, and this will be ready for use. Now, the black box on this harness is a powered taillight converter. This is going to make sure that your vehicle's wiring matches that of your trailer. This connects directly to your vehicle battery to avoid overloading your vehicle's electrical system, reducing strain on your vehicle's wiring system. Curt builds each converter using surface mount technology for consistent, reliable performance.

This is going to maximize trailer light yield and intensity while producing minimal heat, ensuring superior operation in rough road conditions. And this harness is designed to connect quickly and easily. You will need to locate your vehicle's wiring harness, which is located in the rear cargo area, you will have to remove the rear threshold to access the connection point for the harness. But once you locate those connectors, you're gonna separate them, and then you wanna be careful not to break the locking tabs. And then you're going to insert these T-connector ends between the vehicle's wiring connectors and lock them into place.

These T-connector ends are custom fitted for your vehicle, so they are going to match up perfectly with those connection points, and they're gonna snap together and then lock together for a tight, secure fit. Now, once you have those connections plugged in, you will need to make a good ground connection. The ground wire is this white wire. And as you notice, this does have a ring terminal attached to it. And it comes with a self-tapping screw that you see right here, so you can get that grounded to a suitable location, such as your vehicle's frame or crossmember. You just wanna make sure that the surface is clean and rust-free. Then you will need to mount this converter box to a safe, out-of-the-way location. You can do that a number of ways, you could use another mounting screw that you might have on hand, or you can use this included double-sided adhesive tape, or use one of the many cable ties that's included with this kit to secure this. Next, you will need to run the hot lead to your vehicle's battery. That's this short black wire that's coming out of our converter box here. This short black wire is going to get connected to one end of this bundle of black wire that comes with this kit. And then you are going to connect the hot lead wire to one end of this bundle of wire with one of the included butt connectors. And then you're going to route the other end of this bundle to your vehicle's battery. And once you have this routed to your battery, you're going to take this fuse holder here, and this fuse holder, you'll just snip the wires in half there, and then you're going to take the second butt connector and connect the routed bundle of black wire to one of the wires here of this fuse holder. And then the other wire on this fuse holder will get this included ring terminal attached to it, and that ring terminal will get attached to the positive post of your vehicle's battery. This does include a 15 amp fuse, you'll drop that into the fuse holder, and it has a cap there that you can close to keep that fuse safe and protected. You're gonna be able to secure any slack that you might have in your wiring, again, with the many cable ties that's included with this kit. And once installation is complete, the 4-way connector will be stowed in an out-of-the-way location, or you can find a bracket here at etrailer.com to mount this closer to your trailer hitch receiver, so it'll always be ready to go mounted outside of your vehicle. Again, you'll just use that cap to cover up those connection points to keep them protected from the elements. Now, the maximum amperage for the stop/turn lights is three amps per circuit, and for the taillights, six amps per circuit. A great set of instructions is included to guide you through the installation process. It is also recommended that you use a small amount of dielectric grease on all of your electrical connections, such as the plugs on the vehicle and the 4-pole connector itself. So if you do need that grease and you don't already have it, on your screen, I am including our item number for that dielectric grease. And that grease, in case you don't know, is actually designed to prevent electrical failures that are caused by corrosion and moisture. So you can just take that item number, put it in the search field of 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 our time together was helpful for you. Again, my name is Andy. Thank you for joining me.

Customer Satisfaction Score:

Ratings & Reviews

4.3

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

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Wiring box was open in the hitch box. Everything scattered in the box and it had a hole in it. Hope that it's all there.



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Works great!



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Very poor directions. I spent two hours trying to install and finally gave up for the night. I’ve installed many of these trailer light harnesses before and never had this much trouble.



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This product worked great. Before I purchased it, I made sure that there was a video on UTube that detailed the installation process. Without that video, I would not have bought this product.



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I realy want this to work , but unfortunately my left side died as soon as I plugged in . I found a fuse blown and replaced but my rear left turn signal was still out ( front started to work again) so eventually I removed the bridge harness with yellow wire and plugged that side back to original , after a few minutes my rear left turn light returned !! I’ll have to try another brand since the LAST thing I need is to replace and program a new BCM ! Sorry …

Nick S. profile picture

Nick S.

9/22/2025

I am sorry to hear about the experience with this harness. It does sound like you may have received a defective unit. I will have someone from our customer service team reach out and help you get this resolved and back to towing.



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This is the second hitch receiver that I've bought from etrailer. It is also the second wiring harness that I've bought from them. Their web site is clear and easy to navigate. Their customer service is outstanding and their installation instructions have been wonderful. I highly recommend.



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Works great! Check out a YouTube video before you start tearing your car apart, though. It is easier done than through the included instructions.


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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
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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