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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
2000 Ford Ranger
etrailer Installation
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CURT

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

Part Number: C55307
In Stock
$47.06
Retail:$74.99
You Save: 37%
Custom Fit Vehicle Wiring
Not Confirmed to Fit

2000 Ford Ranger

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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 - 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 C55307 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 (74)
  • Q & A (0)
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CURT Custom Fit Vehicle Wiring - C55307

Highlights

  • Custom Fit for Your Vehicle: Works with your vehicle's wiring
  • Tow Without Factory Prep: 4-pole flat connector powers trailer lights for towing safety.
  • Plug-and-Play Install: T-connector plugs inline behind tail lights—no splicing needed.
  • Clean Factory Fit: Harness routes behind trim and panels for a neat, protected setup.
  • Corrosion Protection: Keep 4-pole plug inside vehicle or use dielectric grease to prevent wear.
  • Flexible Mounting: Optional bracket lets you secure the plug externally without drilling.

Features to know about

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

Wiring for trailer lights doesn’t have to mean cutting into your vehicle’s factory wiring. The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector uses plug-in connectors that install right behind the tail lights. Each end clicks into place between the factory plugs, so you get a clean, direct connection with no splicing required.

Gets You Ready to Tow Fast: Simple Behind-the-Tail-Light Connection

This harness connects behind the tail light housings, which keeps installation simple and tidy. You don’t have to run wires through the whole vehicle or chase down extra connections. Once it’s plugged in, you’re ready for trailer running lights, turn signals, and brake lights through the 4-flat connector.

Protects Your Electrical System: Converter Built In

The built-in converter helps match your vehicle’s separate lighting circuits to a trailer’s combined circuit system. That means power is delivered correctly and safely without triggering wiring errors or lighting faults. It’s a straightforward way to protect both your vehicle and your trailer’s electrical setups.

Keeps Connections Clean and Working Longer: Interior Storage Option

When you’re not towing, you can stow the 4-pole connector inside the vehicle to keep it out of the weather and away from corrosion. This helps prevent dirty or damaged terminals and saves you from wiring headaches later on. When you do need it, just pull it out and plug in your trailer harness.

55307 CURT T-Connector - Surface Mount Technology - 4 Wire

Similar to Tekonsha 118389 and Hopkins 33465

Installation Details C55307 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:

Ratings & Reviews

4.6

74 reviews
Review sort icon
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:

Connector was great and took 15 minutes to hook up.



by:

From searching for, ordering, prompt delivery and installing
as instructed. Like a true plug and play. Very pleased.



by:

The instructions were grossly inadequate to comfortably install the wire harness. Because I am experienced in automotive electrics I will figure it out. The harness appears well thought out and will avoid taps, but the instructions as to how to get behind the taillights to connect them in were a puzzle.

Rachael H. profile picture
Etrailer Expert

Rachael H.

8/7/2019

We do have an installation video on a similar year RAV-4 if you would like to check it out.



by:

It was plug and play with no hassle



by:

It's been reliable and was easy to install.....delivery timing was excellent



by:

GOOD INSTRUCTIONS. EASY INSTALL. STILL WORKING GOOD.



by:

Made instaLlation simple. Thanks



by:

The web page was so easy to navigate even for a senior I was able to be sure I got the right wiring harness made for my RAV4. Made it a simple install and all the lights work perfect. Thanks for helping me get it right the first time.



by:

Product great with simple instructions true to advertisement.

Angie profile picture

Angie

5/19/2017

Yes great!



by:

Installation when smooth an easy in our RAV4, a snap as they say. The hardest part was partially taking out the rear quarter panels to access the factory wiring. I would advise NOT sticking down the black distribution block with the two sided tape until you have finally placed and secured the wiring.



by:

This product works great, and was relatively simple to install. It is a pleasure to find a company whose people take such pride in their products and services that my personal satisfaction is assured. My thanks to everyone at etrailer.com. You have gained a permanent customer.



by:

completely satisfied with the product. the order process was easy and the delivery time was short. simple installation with the instructions. These folks are professional.



by:

Easy to install. It all still works after a year of owning it.



by:

Everyone was very helpful and the hitch arrived in a very timely manner. I found it very easy to install. I still have to tackle the wiring harness. So far I am very satisfied.



by:

Only problem was that the yellow wire bridging the driver and passenger sides was a bit too tight. Splicing in an additional 8" took an extra five minutes and installation thereafter was simple.

The video describing installation was most helpful. I have limited experience pulling off body panels. Starting at the top as shown made it straightforward.

Includes the sticky pad and lots of cable ties.



by:

Excellent product fit like a glove I am 70 years old and installed this curt hitch by myself
In about 30 mins, the curt wiring harness took longer because I wanted to make sure I didn’t pinch any wires.. but was a pleasure to complete, no problems.. will be able to now pull a small yard trailer..



by:

It was the easiest wiring any trailer that I have ever done. Didn't have to cut or splice any wires, just unplug tail light wires and plug in the wiring harness. It took me 10 minutes for complete installation.



by:

Installed this weekend. Really simple. Plug and play. Very pleased with the quality. Will work just great for my trailer needs. Highly recommend Curt.

Paul profile picture

Paul

4/10/2018

Yes, very satisfied a year later. Everything works great and no problems.



by:

I really appreciate the effective way everything has been thought out for the customer. From the video to how the product is packaged. I ordered this wiring kit along with the tow bar. Both items arrived at the same time. The tow bar took me 14 minutes to install (no power or pneumatic tools). The wiring kit took me about 15 minutes as well. I truley appreciate finding this package at a good price. I will definately be recommending etrailer.



by:

I received my trailer hitch and wiring harness as predicted by the shipping estimates for free shipping.
The installation of both hitch and wiring harness was very simple. Hitch installed in 20 minutes and harness 30 minutes. Had hooked up to my trailer and on the road with in ~hour.
Thanks for the quality product!



by:

This product Item: C55307 literally took me 18minutes and 48seconds to install on my 2002 Toyota RAV4. I opened the back door, set my trim removal tools, cordless drill and 12v DC circuit tester on the ground. I removed my phone from my back pocket and started the timer. I removed the trim as per the video. Installed the wiring kit as directed. Tested each circuit as suggested before reinstalling the trim. Reinstalled the trim and closed the back door 18m 48s. etrailer has my business for sure. Top notch outfit.



by:

This is a really great product. Super easy to install!



by:

Let's put it this way , my 8 year old son new where to connect wires ! I choose to make to perminate through nock out is right above center of hitch, here's some pictures



by:

I ordered your wiring kit for my RAV4 2004 to pull behind my class C. It has never worked. When I called back to ask about it the tech said. That you dont’t make a kit for that vehicle. And that they had sent me a kit to wire to pull????
If you do have a kit that works I would like to know.

Mike L. profile picture
Etrailer Expert

Mike L.

10/6/2022

The kit you purchased would work if you were pulling a trailer with your RAV4, but wont work for towing the RAV4 behind a motorhome. Although we dont offer a plug and play flat towing harness for the 2004 RAV4, Id recommend a diode kit like # RM-152-98146-7. Ill link to a video showing a typical installation.



by:

Worked great with no issues at all. It was plug and play, super easy install. Ended up getting rid of the car it was attached to for unrelated reasons. The car company I sold it to kept the trailer connector installed since it worked fine.


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

  • Curt Wiring Harness C55486 Installation in 1999 Toyota RAV4 2-Door Convertible
    We can help you with a 4-pole wiring harness for your 1999 Toyota RAV4 but the Curt wiring harness you referenced, part # C55307, is not a fit for your vehicle. It fits the RAV4 starting with the 2001 model year. The correct Curt 4-pole harness for the 1999 RAV4 is Curt # C55486 or one of the other two options shown on the linked page. Each of these harnesses will plug in inline with your taillight wiring at the back of each taillight assembly. It will be necessary to remove several trim...
    view full answer...
  • Should 4-Pole Wiring Harness Be Kept Inside Vehicle When Not in Use
    Unless you tow almost every day I recommend keeping your 4-pole trailer connector inside the vehicle where it is protected from corrosion and damage. Many wiring issues can arise from corrosion and so it is best to save yourself that potential hassle by keeping the harness out of harm's way as much as possible. The various harnesses for your RAV4, Curt harness # C55307, Tekonsha # 118389 and Hopkins # 33465, all have a protective cover for their 4-pole plug, but I still recommend keeping...
    view full answer...
  • Cleaning Out Corroded Weldnuts to Install a Trailer Hitch on a 2005 Toyota RAV4 or Any Vehicle
    Instead of tapping new threads, which should be a last resort only, you can clean out the weldnuts on your 2005 Toyota RAV4. This will take a little extra time and some elbow grease but it is the best way to ensure no damage is done to the vehicle weldnuts. You will need a stiff wire brush that fits into the holes and some spray lubricant like WD40 or PB Blaster. Liberally spray in the holes and let it soak for about 15 minutes. Then go at it with the wire brush. You may need to repeat...
    view full answer...
  • Will the Curt T-Connector Vehicle Wiring Harness Fit a 2005 Toyota RAV4
    Correct, the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # C55307 is a confirmed fit for a 2005 Toyota RAV4. The Curt T-Connector simply plugs in behind the tail light housings making for a plug and play installation. I have attached a sample install video for you as well. In order to complete your towing setup you will also need a trailer hitch and ball mount/hitch ball if you don't already have them, the Curt Trailer Hitch Receiver part # C13524 and...
    view full answer...
  • Parts Needed to Install 5-Way Trailer Wiring Harness on 2001 Toyota RAV4
    Hey James, we have a T-connector style trailer wiring harness that fits your 2001 Toyota RAV4 with the Curt part # C55307. Now if you need a 5-way connector you would need to get the part # C57187 as well and run the extra wire to the reverse light circuit assuming you are towing a trailer with a surge actuator? What are you towing?
    view full answer...
  • Will the Curt Circuit Protected Converter # C56175 Fit a 2001 Toyota RAV4
    Yes, the Curt Circuit Protected Converter, # C56175, will fit your 2001 Toyota RAV4. There are two reasons why you do not see this harness in Curts fit guide. First, Curt offers a custom T-connector wiring harness, part # C55307, for your vehicle so Curt will not list a splice-in harness. Before Curt made the T-connector harness, the harness you referenced was the recommended wiring harness. Second, this harness can be used on most vehicles that have separate, rather than combined, tail...
    view full answer...
  • Trailer Wiring Harness for a 2001 to 2005 Toyota RAV4 with 4 Cylinder Motor
    Hopkins trailer wiring harness # 33465 fits all models of the 2001 to 2005 Toyota RAV4. That would include 4 and 6 cylinder models. You could also use # 118389 or # C55307. They all install the same way and have the same functions. I have included a link to a video showing an example installation.
    view full answer...
  • Trailer Wiring Harness for a 1999Toyota RAV4
    The Curt trailer wiring harness # C55307 fits 2001 to 2005 Toyota RAV4 models but it will not fit a 1999 RAV4. For your 1999 RAV4 you will want the Curt # C55486. It is always a good idea to apply a small amount of dielectric grease, # LT37534, to all electrical connections to help prevent corrosion.
    view full answer...

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


Info for this part was:

Employee Joe V
Test Fit:
Joe V
Employee Leah B
Edited by:
Leah B
Employee Andrew K
Video by:
Andrew K
Employee Lindsey S
Written by:
Lindsey S
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Jeff D
Installed by:
Jeff D
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B

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