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

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

Item # 43105
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Custom Fit Vehicle Wiring

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Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector Converter 43105
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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 - no cutting or splicing required. Call 800-298-8924 to order Hopkins custom fit vehicle wiring part number 43105 or order online at etrailer.com. Free expert support on all Hopkins products. Guaranteed Lowest Price 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.
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Hopkins Custom Fit Vehicle Wiring - 43105

  • Custom Fit
  • Trailer Hitch Wiring
  • Hopkins
  • 4 Flat
  • Converter

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 or splicing required.


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
    • Locate connection point in rear cargo area
    • Plug in connector
  • Includes a tail light converter to ensure that your vehicle's wiring matches that of your trailer
  • Protective connection terminals resist corrosion
  • Comes with dust cap for 4-way flat connector, cable ties, and terminal grease packet for electrical connections


Specs:

  • Maximum amperage:
    • Turn lights: 2.1 amps per circuit
  • Wire gauge: 16
  • 90-Day limited warranty


Installation

This custom-fit T-connector plugs into your vehicle's wiring harness, which is located in your rear cargo area. The exact location of the wiring harness will vary depending on your make and model.


Once installation is complete, the 4-way flat connector will be stowed in your rear cargo area.


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.


Tail Light Converter

A tail light converter is built into this T-connector. 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.



43105 Plug-in Simple Hopkins T-Connector with 4-Pole Trailer Connector

Installation Details 43105 Installation instructions

This Product Fits The Following Vehicles



California residents: click here



Customer Reviews

Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 43105

Average Customer Rating:  4.8 out of 5 stars   (70 Customer Reviews)

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 or splicing required.

- 43105
by:
2002 Honda CR-V

easy install 920683



- 43105
by:

The package was delivered complete and in excellent condition. Parts look like a good fit. Looking forward to installing. 877883



- 43105
by:

859508



- 43105
by:

Easy to install following [installation] video 844617



- 43105
by:
2005 Acura MDX

The wiring harness fro the 2005 Acura MDX fit well and functioned as expected. For the cost of these pre-made harnesses, I cannot build my own as I used to do. I've fitted these to the last 3 vehicles I owned and every one has been excellent. 820752



- 43105
by:

Only complaint was that my vehicle year wasn't on the instruction sheet, which explains what side of the vehicle to find the wire harness 800937



- 43105
by:
2003 Honda CR-V

Delivery EARLIER than advertised. 802756



- 43105
by:

Product was plug and play install. Worked as it should. 798993



- 43105
by:

Great product and THE BEST SERVICE! 790629



- 43105
by:
2006 Honda CR-V

I like the drawtite hutch over the curt BUT reconnecting the onboard muffler mount was awful!!! The drawtite bracket is SOOOO substantial it interferes with the reassembly. We need a video of that install. Still it’s a great product and the harness went on and works perfectly. All around the service and products offered are excellent. 786650



- 43105
by:

Perfect fit and impressive quality. Could not be happier! 767411



- 43105
by:
2005 Honda Pilot

exactly what was needed 727539



- 43105
by:
2004 Honda CR-V

Perfectly fit into factory connection. However, the instructions do not clearly state where that connection is located. They give general locations, but I had to hunt for it which meant removing multiple interior panels. Once located, it was easily to install. 694283



- 43105
by:

these people are awesome items arrive on time and before time no worries these guys are awesome ..../.../././/./. and the prices are also awesome /./././ cannot find better anywhere else ......... keep up the good work ........... thanks 683614



- 43105
by:

Excellent product, excellent installation instructions. No problems after one year. 643448



- 43105
by:

Prompt service and delivery. thanks 630997



- 43105
by:
2003 Honda Element

No help instruction for connection. 573112



- 43105
by:

Plugged right in to the factory hookup point with little effort, if you're mechanically inclined. I believe the hookup up point was on the left side of the trunk and you would need to pull back the interior to access it. It has worked very well. I would recommend or buy again. 570452



- 43105
by:
2004 Honda CR-V

Very easy to install, thanks 544425



- 43105
by:

I wanted to leave you a review but cannot find a good venue to do so. I just ordered a hitch, wiring harness and 4-pole wiring harness tester from your website. I ordered from you because I think your video tutorials are amazing. I consider myself very handy and above average when it comes to mechanical projects, but I love a good tutorial and yours are top notch. I hope the products I ordered are as good as your videos. 492457



- 43105
by:

Easy snap-together connection without cutting any wires. Works exactly as it should. 468896



- 43105
by:

Very happy with product. It came as as vertised. 444730



- 43105
by:

It works fine, but it is not as pictured. The wires are not encased in the gray sleeve like in the picture of the product. Could have saved a few bucks had I known that because that's the reason I chose this harness. Install was pretty straightforward, especially thanks to the video. 440464



- 43105
by:
2004 Honda CR-V

Easy install, plugged right in. Works great. 438393



- 43105
by:
1996 Honda Odyssey

Works good 431319


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70
Show More Reviews

Ask the Experts about this Hopkins Custom Fit Vehicle Wiring

  • Which Trailer Wiring Harness Fits a 2004 Honda Element
    You could use either the Hopkins harness you were looking at, part # 43105, or you could use the Tow Ready part # 118336. They are comparable parts that install the same way. I have included a link to the Tow Ready part instructions that are very good. See page 5 of the instructions for the Element. Either of these should function fine on your 2004 Element The 6 pin factory Honda connector has the necessary circuits to properly power a 4-Way trailer connector. It is possible that the...
    view full answer...
  • Trailer Wiring Harness Port Location on a 2004 Acura MDX
    It should be under the threshold molding on the back edge of the cargo area, along where the door seals to the vehicle. It would not be behind the panel on the left or right side of the cargo area. I have added a link to the instructions for part # 118336. See page 4, it is the page that has the pictures for install 2001-current Acura MDX.
    view full answer...
  • Where To Connect Hopkins Plug-N-Tow Wiring Harness # 43105 On A 2005 Honda Pilot
    To install the Hopkins Plug-N-Tow Wiring Harness, part # 43105, on your 2005 Honda Pilot you will need to plug it into a connector located inside the vehicles rear cargo area, under the rear threshold. You will remove the rear threshold and push the front tray forward a little and you will see the connector around the center of the vehicle. See the pictures at the right that will show the location of the connector on a Honda Pilot. I am including a video link to a wiring harness being...
    view full answer...
  • Installing T-Connector Harness on a 2002 Honda CR-V
    You will have to remove some of the plastic panels in the trunk interior. Start by removing the storage lid and the storage compartment liner in the rear of the CR-V. You will then loosen or remove the plastic trim that runs along the sealed edge of the hatch. Then you will loosen and pull back the panel on the driver side to expose the wires. I have included a link to the instructions in case you do not have them. I have also included a link to a video of a wiring install on a 2006...
    view full answer...
  • Parts Needed to Add a Trailer Brake Controller to a 2003 Acura MDX
    The 2003 Acura MDX is not per-wired for a brake controller so you will need a few things in order to install a brake controller starting with a 4- to 7-Way installation kit # ETBC7. This will provide the 7-Way and the wiring and accessories to install the brake controller. I have included some links that explain the ETBC7 installation for you. For a brake controller, I recommend the P2, # 90885. This controller is very popular because it is reliable, easy to set up, and easy to use.
    view full answer...
  • How to Install a Hopkins Trailer Connector on a 2003 Honda Element
    Check out page 5 of the instructions I attached for the Tow Ready Custom Fit Vehicle Wiring # 118336. This is a different brand connector but it does the same thing as the Hopkins Custom Fit Vehicle Wiring # 43105 and installs the same way so the instructions will work for you as well. The instructions I attached show you exactly where the panels are that need to be removed and how to remove them.
    view full answer...
  • Where is the Connector for the Custom Fit Wiring Harness on the 2003 Honda Element
    You will need to remove the spring loaded hinged cover and the passengers side trim panel to access the wiring in the rear of the vehicle. The instructions (see link) have pictures to show exactly where the connector should be. Page 5 shows the instructions for the 2003-2004 Honda Element.
    view full answer...
  • How To Charge Trailer Battery From a 1999 Honda CR-V with a 4-Flat Trailer Connector
    The Hopkins Wiring Harness, part # 43105, will fit your 1999 Honda CR-V and give you a 4-Flat connector at the rear of your vehicle. This will allow you to plug in the trailer and have lights on your trailer. I am including a link to the installation instructions on the Hopkins harness. The best solution to be able to charge your trailer battery from the CR-V battery is to install the Hopkins 4-Flat to 7-Pole Adapter, part # 37185, on your Honda CR-V. You will plug the 4-Flat connector...
    view full answer...
  • Where is the Connector Needed to Install a Hopkins Wiring Kit # 43105 in a 2003 Acura TL
    The OEM connector that you need to find to install the Plug-N-Tow TM Vehicle Wiring Harness, part # 43105, is located in the trunk behind the driver side taillight access panel. The access panel is the piece of the interior that you would remove if you were trying to replace the tail light bulb. It might not be in plain view, you might need to reach in there and see if you can feel around for it. I attached the installation instructions for this product below for you to check out.
    view full answer...
  • Is a 4-Way Harness Needed if My 2004 Honda Pilot Already has a Factory Installed 4-Way Connector
    Ordinarily, you would need three components to complete a brake controller and trailer wiring set up on a 2004 Honda Pilot. The brake controller, the 7 and 4 Way Installation Kit, # ETBC7, and wiring harness 43105 or 118336. If you already have a 4-Way connection at the rear of the vehicle, you should only need the brake controller and the ETBC7 kit. You have to make sure your 4-Way connection you have currently on the vehicle is functional (it is wired and ready to use). The ETBC7 kit...
    view full answer...
  • Trailer Wiring Harness Needed for a 2005 Honda Element
    I do have a solution that will work for your 2005 Honda Element but unfortunately neither the Hopkins # 43105 or their # HM40155 are confirmed fits for your vehicle. Instead you will need to use a universal option like the Tekonsha Wiring Harness Kit # 119147KIT. This comes with quick splice connectors that allow you to tap into the light functions on your Element. It also includes the wiring needed to run to your battery so that your trailer lights aren't pulling from your vehicle...
    view full answer...
  • Installation of Trailer Wiring Harness in 2003 Honda Element
    The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C55336 is a fit for the 2003 Honda Element. I've attached the installation video of a 2005 Pilot which is a similar install to assist. I've also linked the installation of similar harnesses # 118336 and # 43105 from other manufacturers also confirmed to fit your vehicle to help. Unfortunately we don't have any videos of these harnesses on your specific vehicle and don't have the vehicle to shoot that specific...
    view full answer...
  • Trailer Connector Mounting Box for Round Tube Hitches
    Yes the mounting box you have selected will work with the hitch and wiring kit you have selected. You will also need a wiring harness, 118336 or 43105, if you are not set up with a 4 pole flat connection already. In addition you will need a ball mount, pin & clip and the appropriate sized hitch ball to complete the setup if you do not already have these items. I have provided links below for your convenience.
    view full answer...
  • Vehicle Wiring Harness Recommendation for a 2001 Honda CR-V
    The T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector, part # 118336, and the Plug-N-Tow TM Vehicle Wiring Harness with 4 Pole Flat Trailer Connector, part # 43105, are very similar, but the Plug-N-Tow connector will allow a bit higher amperage. If you had some extra lights on your trailer, I would recommend the Plug-N-Tow harness, but it sounds like you do not really need the extra power, so I would go with the part # 118336 for your 2001 Honda CR-V.
    view full answer...
  • Recommended Trailer Hitch for Hauling a Trailer With a 2004 Honda CR-V
    Although the Curt and Draw-Tite are both very good hitches, for your application I recommend getting the Draw-Tite Max-Frame Hitch # 75690 to use on your 2004 Honda CR-V. With the Curt hitch for your vehicle, if you are going to be using the hitch for anything but towing then you are required to use a stabilizing strap, otherwise you will void your warranty. The Max Gross Trailer Weight for the Draw-Tite # 75690 is 3,500 lbs and the Max Tongue Weight is 350 lbs.When I looked up the owners...
    view full answer...
  • Recommendation For Trailer Hitch For 2002 Honda Accord 2-Door Coupe
    Yes, I have a hitch for you! I recommend the Draw-Tite Sportframe Trailer Hitch Receiver, Item # 24791, that is a confirmed fit for your 2002 Honda Accord Coupe. It is a Class I, 1-1/4 Inch light duty hitch that lets you tow a trailer, carry a bike rack, or carry a cargo carrier. It has a maximum capacity of 2,000-lbs and a maximum tongue weight of 200-lbs. It bolts on and is very durable. This hitch is a confirmed fit but keep in mind that your Honda has a maximum towing capacity...
    view full answer...
  • Cargo Carrier, Light Kit, and Wiring Harness for a 2000 Honda Accord
    I will be happy to help you out. First, since all of the trailer hitches for the 2000 Honda Accord are Class I hitches you will need a cargo carrier that is rated for a Class I hitch. I have included a link to the available options for you. You will need to have a 4-Way flat connector on your Accord to activate a license plate light. If you do not already have a 4-Way you can add one using # 43105. Then you could use license plate mounting bracket and light # PM436B. The power wire can...
    view full answer...
  • Do I Need Diodes to Prevent Feedback from RV When Flat Towing
    Technically no, you should not need diodes, though it will depend on the wiring harness you are using. Many wiring harnesses have built-in diodes. If you are using a TrailerMate wiring harness you may need to install additional diodes. We have had trouble with their built-in diodes giving out. If you are using a Bulb and Socket Set for Tail Light Wiring Kits like # RM-155-2, or a magnetic tow lights like # TL21RK, you won't have to worry about diodes because there won't be any feedback...
    view full answer...
  • Installing a Trailer Wiring Harness on a 1995 Honda Del Sol
    I wasn't able to look up your order number using the supplied email address but the correct wiring harness for your 1995 Honda Del Sol is part # 118336 for Tekonsha or part # 43105 for Hopkins. I called Tekonsha and Hopkins to confirm this. Both of these harnesses are a direct plug and play install that will not require you to cut or splice any wires. Most of the time, it is just simply a case of not being able to find the connector. Hopkins suggested that you look in the back cargo...
    view full answer...
  • Fit of Trailer Hitch, Installation of Hopkins Vehicle Wiring Harness for 2000 Honda Accord Coupe
    The trailer hitches we offer for the 2000 Honda Accord are confirmed to fit all models of the Accord, so they will work well on your coupe. The Draw-Tite Class I Sport Frame Receiver Hitch # 24791 that you referenced will work well on your Accord Coupe. I highly recommend this hitch because, unlike the Curt hitch option, Draw-Tite's hitch warranty does not require a stabilization strap to be used when carrying non-trailer loads such as bike racks or cargo carriers. The Draw-Tite # 24791...
    view full answer...
  • Will 2003 Honda Odyssey Hitch fit 2009 Model
    I checked with the manufacturer and 90737 has been discontinued and is also not a fit for your 09 Honda Odyssey. The last year that hitch covers is 2004. Hitch # 36417 is the trailer hitch you need because it covers 1999-2009. If you would still like a replacement hardware kit for hitch 90737, you can order by clicking on the part # RHK. The installation instructions for the custom-fit hitches for your vehicle do not mention needing an exhaust hanger, however, they do say to temporarily...
    view full answer...
  • Trailer Hitch Recommendation for a 2005 Honda Pilot
    I would recommend either the Curt Class 3 Trailer Hitch, item # 13328, or the Draw-Tite Class 3 Trailer Hitch, item # 75599, for your 2005 Honda Pilot, these are both custom designed hitches for your vehicle. For trailer wiring I would recommend the Plug-N-Tow (TM) Vehicle Wiring Harness with 4 Pole Flat Trailer Connector, item # 43105. This harness provides up to 8 amps maximum taillight load for trailers with extra lights. Listed below are some other items you may need to complete...
    view full answer...
  • Thule Passage 2 Bike Carrier Trunk Mounted Bike Rack # TH910 Compatability for Honda Pilot 2004
    The Thule Passage 2 Bike Carrier Trunk Mounted Bike Rack # TH910XT or TH961XT will not fit on your 2004 Honda Pilot because the top straps should not be mounted directly to glass or plastic trim covering glass. This is a problem you will encounter with all current trunk mount carriers and your vehicle. I recommend a trailer hitch and bike rack for a trailer hitch system to fit your carrier needs. The Draw-Tite Class III Max-Frame Trailer Hitch Receiver # 75599 is designed to fit your...
    view full answer...
  • Is Trailer Wiring Harness Included with Curt Hitch Part # 13328
    Wiring harnesses are not included with Curt hitches. Hitches include the hardware needed to mount the hitch to the vehicle. Some Hidden Hitch models will included a draw bar and pin and clip. There are a handful of Valley hitches that have integrated wiring. For your 2005 Honda Pilot, you would use either part # 118336 or part # 33105 for a trailer wiring harness.
    view full answer...

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Info for this part was:

Expert Research:
Robert G
Expert Research:
Patrick B
Expert Research:
Michael H
Expert Research:
Jeff D
Expert Research:
Reno H
Expert Research:
Jameson C
Video Edited:
Joshua S
Video Edited:
Jacob T
Video Edited:
Chris R
Updated by:
Laura H
Updated by:
Sarah W
Updated by:
Alexander C
Installed by:
Cole B
Test Fit:
Ryan G

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