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  1. Custom Fit Vehicle Wiring
  2. Hopkins
  3. 4 Flat
  4. Trailer Hitch Wiring
  5. No Tow Package
  6. Vehicle End Connector
Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
Hopkins

Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Part Number: HM43375
$77.85
Retail:$104.69
You Save: 26%
Custom Fit Vehicle Wiring

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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. 1-800-940-8924 to order Hopkins custom fit vehicle wiring part number HM43375 or order online at etrailer.com. Free expert support on all Hopkins products. Great prices and Fastest Shipping for Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
  • All Info
  • Reviews (8)
  • Q & A (0)
  • Videos (1)
  • Photos

Hopkins Custom Fit Vehicle Wiring - HM43375

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

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.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing
    • Tow harness with 4-way connector plugs into connection point behind rear bumper
    • Power harness connects in engine compartment
  • Includes a tail light converter to ensure that your vehicle's wiring matches that of your trailer
    • Powered module connects directly to battery to avoid overloading vehicle's electrical system
  • Protective connection terminals resist corrosion
  • Comes with dust cap for 4-way flat connector, cable ties, and terminal grease packet for electrical connections
  • 90-Day limited warranty


Installation

This custom-fit T-connector plugs into your vehicle's wiring harness, which is located behind your rear bumper on the driver's side. Once you've plugged in the tow harness, locate your vehicle's battery harness plug behind the driver's-side headlight assembly and plug in the power harness with the fuse holder. Run the harness to your battery and connect it to the positive terminal. Then insert the included fuse into the in-line fuse holder.


Once installation is complete, the 4-way connector will be stowed beneath your vehicle, near the trailer hitch. A mounting bracket (sold separately) is recommended to keep the connector secure.


It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.


Powered Tail Light Converter

A tail light converter is built into this T-connector. This converter is a battery-powered unit that bypasses the electrical routes that are used by a basic wiring harness. As a result, there is virtually no draw on your tail light circuits.


Because most trailers run on a two-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's three-wire system need to be combined so they are compatible with the wiring system of the trailer. This converter combines the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your vehicle operate.



43375 Plug-in Simple Hopkins T-Connector with 4-Pole Trailer Connector

Installation Details HM43375 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Video of Hopkins Plug-In Simple 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 Hopkins Custom Fit Vehicle Wiring - Plug In Vehicle Wiring Harness 4 Pole Flat - HM43375

Hi everybody, Andy here with etrailer.com and today we're gonna take a look at this Hopkins plug-in simple vehicle wiring harness with a four pole flat trailer connector. Now, this is a custom fit wiring harness that is designed to fit the 2001 to 2002 Toyota Tundra. And this harness is going to give you a four pole flat trailer connector at the back of your Tundra to power your trailer lights. It is also compatible with five pole, six pole and seven pole adapters that are sold separately. And this also includes a detachable dust cap for the four pole flat connector, so that you will be able to cover up those connection points when the plug is not in use. Now, the black box that you see here on this harness is a taillight converter and this is going to ensure that your vehicle's wiring matches that of your trailer.

This powered module connects directly to your battery to avoid overloading your vehicle's electrical system. And this custom fit T-Connector is going to plug in to your vehicle's wiring harness, which is located behind your rear bumper on the driver's side. And once you've plugged in the tow harness, you wanna locate your vehicle's battery harness plug behind the driver's side headlight assembly and plug in the power harness with this fuse holder. And then, you're going to run the harness to your battery and connect it to the positive terminal. And then, you're going to make sure that the included fuse is plugged in to this inline fuse holder and you will be good to go.

Now, because most trailers run on a two-wire system, wherein the brake and turn signals are carried on one wire, the separate brake and turn signals from your vehicle's three wire system need to be combined, so they are compatible with the wiring system of your trailer. This converter combines the brake and turn signals of your automobile, so that they run on one wire to properly activate your trailer's taillights. This will not affect how the taillights on your vehicle operates. So, once installation is complete, the 408 connector will be stowed beneath your vehicle near your trailer hitch. A mounting bracket, which is sold separately, is recommended to keep the connector secure.

You can take a look at the related product section on this product page for some recommendations on a mounting bracket. Now, it is recommended that you use a small amount of grease, which is included here, on all of your electrical connections, the plugs on your automobile and the four pole connector itself. That's going to help prevent corrosion and then, you can can use the cable ties here to secure any excess or slack in your wiring. And that's gonna conclude our look today. I do hope that it was helpful for you.

Again, my name is Andy. Thank you for joining me.

Ratings & Reviews

4.6

8 reviews
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.

by:

This replaced my 2007 NAPA wiring harness an works perfectly. It was also $35 less than I paid NAPA 11 yrs ago for the same part. Hope this one lasts as long.

Mike S. profile picture

Mike S.

6/18/2019

Still perfect!



by:

So far this connector works fine. Have not used it as much as I would like, but overall satisfied.



by:

Incredible selection had just what we needed and at a great price!! Fast shipping and superb quality. Thanks etrailer.com



by:
2002 Toyota Tundra

Plug in and ready to go, excellent



by:

I haven't installed it yet...but I looked at it and it seems that it will work.



by:
2002 Toyota Tundra

Great product



by:



by:


8
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See what our Experts say about this Hopkins Custom Fit Vehicle Wiring

  • 4-Way Trailer Wiring Harness for a 2002 Toyota Tundra
    Wiring harness # C55246 is not a confirmed fit for your 2002 Toyota Tundra but we do have wiring harnesses that will work. To add a 4-Way you can use # C55378, # 118378, or # HM43375. If it were me, I would go with # 118378 because it is the best value and we hear about fewer problems with the Tekonsha brand. I have linked a video showing an example installation for you.
    view full answer...

Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Alexander C
Written by:
Alexander C
Employee Andy C
Installed by:
Andy C

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