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  1. Custom Fit Vehicle Wiring
  2. CURT
  3. 4 Flat
  4. Factory Tow Package
  5. Trailer Hitch Wiring
  6. Vehicle End Connector
THIS ITEM IS NOT A FIT FOR
2010 Dodge Nitro
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CURT

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

Part Number: C77KR
In Stock
$44.87
Retail:$70.99
You Save: 37%
Custom Fit Vehicle Wiring
Not Confirmed to Fit

2010 Dodge Nitro

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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. Connectors plug 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 C77KR 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.
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  • Reviews (10)
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  • Videos (1)
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CURT Custom Fit Vehicle Wiring - C77KR

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 into factory tow package—no cutting or splicing.
  • Clean Factory Fit: Hidden plug mounts neatly for a secure, out-of-sight connection.
  • Reliable Power Flow: Built-in powered converter syncs vehicle and trailer light signals.
  • Ready for Upgrades: Works with 7-way adapters for adding trailer brakes or 12V power.

Features to know about

Installs Without Cutting or Splicing: Plug-In Factory Connector

Wiring a trailer doesn’t have to mean hacking into your vehicle’s wiring. The Curt T-Connector uses plug-and-play factory connectors so you can hook up a 4-flat trailer connector without any wire cutting or splicing. It ties directly into the existing tow-package ports for a clean, factory-style finish.

Gets You Towing Fast: Simple Plug-In Setup

This harness is built for quick DIY installs. Just locate the factory tow-package plug, connect the T-Connector, and you’re ready for trailer lights. There’s no need to run wires through the vehicle or chase down circuits. Most people have it working in minutes.

Reliable Power for Trailer Lights: Built-In Powered Converter

The integrated powered converter keeps your trailer lights working consistently without overloading your vehicle’s electrical system. It delivers trouble-free power to the running, turn, and brake lights through the 4-pole flat connector, giving you steady performance every time you tow.

Clean Factory Look and Durable Protection: Hidden Wiring Design

Once installed, the connector stays tucked away behind the hitch when not in use. The hidden design keeps things neat and protected from dirt and moisture, so it looks like it came that way from the factory while staying ready for the next trip.

Specs

Product Comparison

  • Image Description: Comparison image showing CURT trailer wiring harness models side by side with labeled callouts illustrating component differences and connection points.

56412 CURT T-Connector - OE Replacement 4-Flat - Surface Mount Technology

Installation Details C77KR Installation instructions

This Product Fits The Following Vehicles




Video of Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 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 All You Need to Know About the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package

Jeff: Hello, everybody. This is Jeff at etrailer.com. Today, we're going to take a look at this Curt vehicle wiring harness with the 4-way flat trailer connector for our factory tow package. Now, this is a custom fit part. It is designed to fit the 2018 and newer Mitsubishi Outlander PHEV vehicles that have the factory tow package, and the PHEV vehicles are the plug-in hybrid electric vehicles. And on a custom fit part like this, I do like to recommend for you to go to our website, use the fit guide, put in your year and model vehicle.

It'll show you if this will work for your application.Now, this does provide this 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights. It is designed for use with the factory tow package. And this harness is compatible with five pole, six pole, and seven pole adapters that we do sell separately on our website. This will connect very quickly and easily. Basically just locate your connection point behind the passenger side rear access panel, match it up to this connector here, plug in your connectors.

Then you'll take this white ground wire that has the eyelet on it, ground this to a good clean ground, and then run this fuse power wire down your driver's side lower trim panel, and connect it to the vehicle's battery in the rear.It does include this black box here, which is a tail light converter. This is to ensure that your vehicle's wiring matches that of your trailer. It is a powered module. That's why it'll connect directly to the vehicle's battery to avoid overloading your vehicle's electrical system. And this converter does use the SMT technology, which is surface mount technology.

Gives you more consistent, reliable performance. It will maximize trailer light yield and intensity while producing minimal heat. Will also ensure superior operation in rough road conditions.Now, this part does come with the dust cap for the 4-way. What you can do with that is just attach it to your 4-way plug, and then you can leave it on there if you'd like. And then when you're not plugged into your trailer, just put the dust cap over that and it'll cover the terminals.

Protect from any damage or from the elements.A few specs on this harness. Next, the amperage on the stop and turn light circuit is three amps per circuit. Taillights six amps per circuit. Does come with everything shown here on the table. A real nice set of detailed instructions with pictures that'll describe how this installs. But again, just simply what you'll do . As we mentioned earlier, locate your connection point, which will be in the passenger side rear access panel. It'll match this connector here. Plug it in, make sure it locks into place, and then you'll take the white ground wire that has the eyelet on it, connect it to the nearby ground, good clean ground. If there isn't one nearby, they do give you a grounding screw that you can make your own ground.And then this converter box, you do want to attach it to a nice flat surface, so it doesn't bounce around. They do include this double face tape that you can use to stick that down. Run your bonded wire with the 4-way out towards the back, and then your last connection will be your battery. This fused power wire right here, this will go down the driver's side lower trim panel. Connects to the vehicle's battery in the rear. What you want to do is you'll notice it comes with . includes this 10 amp fuse that you'll just install into the fuse holder just like that. Put your cap over it. Once you get your cap over there, then you're all ready to go. If you notice, it does give you some extra cable ties here to take up any slack in any wiring. But that should do it for the review on the Curt vehicle wiring harness with the 4-way flat trailer connector for the factory tow package.

Customer Satisfaction Score:

Ratings & Reviews

4.9

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

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Awesome easy to install . Great directions with product



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it is what it should be, but there is no long battery cable



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Excellent service



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This is the kit to get for an Outlander PHEV. Well designed, plug n play. I did have to use the included self-tapping tech screw for the ground wire, and the power lead to the battery requires that the installer attach the round yellow eyelet to the wire with a crimping tool, but this was an easy install



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2019 Mitsubishi outlander with factory tow package.
Harness is basically plug and play except it was made for the battery being in the rear cargo area. Had to splice some longer wire to reach the battery in the engine bay. Still very simple to install.



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Works with my Mitsubishi outlander phev, I installed the harness by myself


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

  • Which Trailer Wiring Harness for 2018 Mitsubishi Outlander
    As long as your Outlander isn't the plug in hybrid (PHEV), I'd recommend the # 118482 for vehicles without the factory tow package or # 118277 for vehicles with the tow package. If your vehicle has the tow package, it will have the tow package electrical connector located behind the driver's side bulkhead in the cargo area, to the rear of the wheel well as shown in the provided photo. You could also call your Mitsubishi dealer with the VIN, and they should be able to tell you how the vehicle...
    view full answer...
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  • Correct Wiring Harness For 2020 Mitsubishi Outlander PHEV
    The Curt 56412 is indeed the same as the Curt T-Connector Vehicle Wiring Harness # C77KR, and does fit your 2020 Mitsubishi Outlander PHEV. It is is the correct harness if you have the factory tow package, otherwise you will need a splice-in harness: - Factory Tow Package: Curt T-Connector Vehicle Wiring Harness # C77KR - No Factory Tow Package: Curt Upgraded Circuit Protected Powered Tail Light Converter # C59496 Often, when there is an issue where one light is not functioning, the...
    view full answer...
  • Recommended Trailer Hitch and Wiring Harness for 2018 Mitsubishi Outlander
    We can get your 2018 Mitsubishi Outlander set up for towing with a hitch and wiring harness, and let's go ahead and start with the hitch, and what you will need is the following: - etrailer Trailer Hitch Receiver # e48KR With the hitch set, the next thing you will need is the wiring harness, and there are two different harnesses for your 2018 Mitsubishi Outlander PHEV, with the correct one depending on if you have the Factory Tow Package or not. - WITHOUT Factory Tow Package: Vehicle...
    view full answer...
  • Trailer Hitch Recommended for 2020 Mitsubishi Outlander Plug In Hybrid
    We do indeed have a hitch for your vehicle. According to Curt, their # C13398 Class III hitch is a fit for all models of the 2020 Mitsubishi Outlander PHEV (plug-in hybrid), including the GT model. If you'll be using the hitch for towing purposes, you'll also need a trailer wiring harness like # C59496 if the vehicle isn't equipped with the factory tow package or # C77KR if it IS equipped with the tow package. If you're not sure how your vehicle was equipped, your Mitsubishi dealer should...
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Written by:
Kristina F

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