bing tracking image
  1. Custom Fit Vehicle Wiring
  2. Hopkins
  3. Custom Fit
  4. Trailer Hitch Wiring
  5. 4 Flat
  6. Converter
Plug-N-Tow (R) Vehicle Wiring Harness

Plug-N-Tow (R) Vehicle Wiring Harness

Item # 43475
Our Price: $45.55
You Save: 30%
Custom Fit Vehicle Wiring

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

Shipping Weight: 0.83 lbs
Add to cart
In Stock
Hopkins Trailer Hitch Wiring - 43475
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Need help with installation?
Locate installers near me
1-800-940-8924 to order Hopkins custom fit vehicle wiring part number 43475 or order online at Free expert support on all Hopkins products. Great prices and Fastest Shipping for Plug-N-Tow (R) Vehicle Wiring Harness. Custom Fit Vehicle Wiring reviews from real customers.
  • All Info
  • Reviews (30)
  • Q & A (0)
  • Videos (2)
  • Photos

Hopkins Custom Fit Vehicle Wiring - 43475

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

Plug-N-Tow (R) Wiring Connectors provide a no-hassle, quick and easy way to wire your vehicle.

  • Each vehicle specific connector is pre-wired and uses original OEM connectors for water tight protection, a guaranteed fit, and a great look
  • No cutting or taping
  • 16 gauge wire
  • 4-Pole connector includes dust cap
  • Easy to follow instructions with pictures are included

Can be used with 5-pole, 6-pole or 7-pole adapters.

Connection Points: The wiring harness gets plugged in behind both driver and passenger side taillights. The 4 pole trailer connector will be able to be mounted under the vehicle by the hitch. A mounting bracket is recommended.

Tech Tip: It is always a good idea to apply a small amount of grease to all electrical connections to help prevent corrosion.

11143475 Plug-N-Tow (R) Vehicle Wiring Harness

Replaces 43475

Installation Details 43475 Installation instructions

This Product Fits The Following Vehicles

California residents: click here

Video of Plug-N-Tow (R) Vehicle Wiring Harness

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Trailer Wiring Harness Installation - 1998 Toyota Sienna

Today we are going to install part number 43475 from Hoppy. This is their wiring kit and we are going to install on a 1998 Toyota Sienna mini van. The wiring plugs for this T connector are going to be located behind the plastic here. You can either: a, access them behind the tail light or take off the tail light and get to them that way and run them straight down. Or, in this case, we are going to go behind the plastic and install everything on the inside. First off, we are going to go ahead and take off the thresh hold right here so we can take out the side panels. Alright, undo a couple of screws for the panels. Take off this panel here and there is an additional screw back here you can loosen the panel, the whole rear interior quarter panel with.

Alright, this is the gray connection right here. This is the one we want to take apart and the T part into it. It is real tight working, so you push down the tab here. I think you can pull off the bottom. We are working on the passenger side. We will install the green wire to there and then do the same thing back up in here. And then we can reassemble our panel at this point. We will repeat for the same thing on our drivers side here. We have to take out the jack assembly to pull this whole panel off because this interior part is connected to the plastic here. Again, the same thing applies to the other side. Just push in that little tab and it should pop apart. We will hide our box back behind the plastic and leave this little plastic end, the port for the 4-pole, we will leave that hanging out. We will go ahead an put our panel back together. And we can just reassemble everything inside this panel here.

Next what we are going to do is hide our green wire next to the harness underneath the carpet here and we are just going to pull these little tabs out, just tuck it behind it. Now what we are going to do is bond up our white wire here and our green wire to take up the slack. Now we will install our ground. And we will use the overlapping pieces of steel here. That way, you will have more steel to go through and more for the screw to adhere to. And our little converter box here, we can just tuck back up inside of here. And then, we will leave our 4-pole end port, we will leave that hanging out below the thresh hold. Now at this point here, you can simply just fold this underneath the plastic here and come up inside the jacks storage compartment. And then we can go ahead and plug our 4-pole into the port. And when you are ready to use it, you can simply pull it out, a little bit of it. Go ahead and put the door back on. And you have the excess hanging out and it will come down right down to your hitch. And there you have it for part number 43475 from Hoppy for a 4-pole T end wiring harness.

Customer Reviews

Plug-N-Tow (R) Vehicle Wiring Harness - 43475

Average Customer Rating:  4.9 out of 5 stars   (30 Customer Reviews)

1999 Toyota Sienna

Does the trick in the Sienna (after the new kid at the local U-Haul shop installed the hardware for a hitch just fine, then drilled RIGHT THROUGH several wires in the bundle in the rear threshold for their adapter! [GRRRR!]) I was able to repair/splice that, and got yours. Makes for a nice clean, plug-n-play installation!
We can take the utility trailer for a load of compost or DG and be street-legal.
Instructions and testing ideas made the whole process do-able, THANX!
Now off to see about other RV/Camper things we'll need later...


Everything worked perfectly, and installed easily.

2003 Toyota Sienna

I ordered and installed the wiring harness as well as the trailer hitch for my 2003 Toyota Sienna. I am not a mechanic and usually do not do my own work.
I am very pleased to say that the instillation went without a hitch (pun intended). I definitely recommend these products and etrailer.

2001 Toyota Sienna

This product works great! I watched the install video on youtube, then ordered the wiring harness, then I installed it in less than 10 minutes. Thank you for making it simple! I highly recommend this to anyone!

2002 Toyota Sienna

It cannot be any easier to install with no cutting, drilling or splicing.

Tom K.


Perfectly, that is an easy install.


Not knowing about auto electrical wiring. I received your unit yesterday. And installed it today with ease I tested all my light functions and to my suprise it worked. Thank you guys very much.


Went together easily and quickly. Less tha an hour total. Would have been faster had not two of the Toyota bolts had not been crossthreaded.

Only shortage, a mounting bracket as a premanent install.

2000 Toyota Sienna

Written instructions don't help much, WATCH THE VIDEO! Watched it once, then took about 15 minutes to hook up harness and reinstall panels. Hooked up friends trailer with "wiring issues" and everything worked first try!

2001 Toyota Sienna

Works as advertised. Easy to install and fits a Toyota sienna perfectly The installation video is very helpful.

1998 Toyota Sienna

How could it be better? I order the Wiring Harness on Wednesday, it arrived on Friday, and it works perfectly. Thanks

2000 Toyota Sienna

I received it on time and it took me about 30 minutes or less to install. It was very simple and everything worked just right. I reviewed the video that was included on the site and it was extremely helpful. I have only had to use it once so far, but more opportunities will develop.


works great so easy to install

2000 Toyota Sienna

Item was easy to install Video was helpful. Installed onto my 2000 toyota sienna worked like a charm.


Good YouTube videos on installation. Product was a great fit and installation no problem. The ordering and shipping process was fast and efficient! Great customer service!!!


Good product and easy to install.

Russ M.


Everything is still working great, thanks again.

2003 Toyota Sienna

It was updated daily and told me everything I needed to know and shipped on schedule.

1998 Nissan 200SX

I recieve it today and all i do is just fit right in place no wire cutting at all.....i love car i will definitely but it from you guys.....thankyou so much. Makr my life easier...


Not the easiest to install but I would buy again.


Great people shipped everything on time and even used tracking. Pkg was small and well packed. Prices were great also !!!!!

2000 Toyota Sienna



Awesome product and very helpful with video tips.


Great products, service, communication and super fast shipping! Thanks for a great shopping experience!


This was supper easy to hook up. The short video was a great help.

2002 Toyota Sienna

Installed in 15 minutes, works perfectl y.

2001 Toyota Sienna

works great, easy to install, and easy to find and order the right part on the web.

Show More Reviews

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

  • Replacement Trailer Wiring Harness for a 2000 Toyota Sienna with Original Harness Not Working
    You are correct, if you have power going into the converter box and not coming out of the converter box you, for any one of the trailer lighting functions, will need to replace the converter. Although the converter does not look the same it preforms the same function, combining the separate brake light signal and turn signals on your vehicle on to the same wires going to the trailer lights. The Hopkins Custom Fit Wiring Harness, item # 43475, will install inline with the connectors going...
    view full answer...
  • Hopkins Wiring Harness # 43475 and 5-Way Adapter Recommendation 2000 Toyota Sienna
    Yes, there is a way to get a 5-way at the back of your 2000 Toyota Sienna, but you would first need to install the Plug-N-Tow Vehicle Wiring Harness, part # 43475, that you referenced. I attached installation instructions for this product below. The next thing you would need is a Adapter 4 Pole to 5 Pole Trailer Wiring Adapter, part # 47515. This will give you a 5-way at the rear of your vehicle and would also give you the option to decide what you want the fifth pole to be. Some people...
    view full answer...
  • What is the Right Trailer Wiring Harness for a 2000 Toyota Sienna
    For a 2000 Toyota Sienna the correct trailer wiring harness is # 43475. This harness plugs in line with the tail light wiring so you will not need to splice into the vehicle wiring. I have included instructions and video links that explain a typical installation for you.
    view full answer...
  • 4-Way Trailer Connector Mounting Bracket Recommendation for a 200 Toyota Sienna
    The 4 pole trailer connector will be able to be mounted under the Toyota Sienna by the hitch. From the way the instructions seem to explain it, the 4-Way will be on the outside underneath the vehicle and not hanging through the rear cargo doors. I have included a link to the installation instructions for you to view. For a bracket, you can use a combination of # 18144 and # 18140. If you determine that the 4-Way would have to be pulled through the rear hatch, you can follow these alternative...
    view full answer...
  • Is Drilling Required to Install Draw-Tite Class III Hitch, Part # 75120 on 2000 Toyota Sienna
    Installing the Draw-Tite Class III hitch, part # 75120 would require drilling. I attached the installation instructions for you to check out. We also carry the wiring harness for the Sienna to provide a connection for trailer lighting. The Hopkins Wiring Harness, part # 43475 is specifically designed for your Sienna. Installation is simple, with no cutting or splicing required.
    view full answer...
  • 2000 Toyota Sienna Wiring Harness Installation Quest
    We have videos that will show you how to install your hardwire kit, however I would recommend getting the Plug-N-Tow, simply for the fact that you will not have to splice and test wires. Just plug it in and you are set. Depending on where you are located, we can have the wiring harness to you in a few days. I have included a link below to the Plug-N-Tow custom-fit wiring harness for your vehicle. If you would rather hardwire the harness you have, the video I am recommending shows an installation...
    view full answer...
  • How to Remove Rear Threshold to Install Trailer Wiring on a 1999 Toyota Sienna
    To install the Curt Wiring Harness part # C55418 you will need to remove the rear tailgate threshold. Basically you will just pull straight up on it and it will come out. To see how a very similar wiring harness would install on a very similar Sienna as your 1999 model check out the video I attached. It shows how the threshold is removed as well as the rest of the install process.
    view full answer...
  • Left Turn Signal Makes Right Trailer Signal Blink With Hopkins Wiring Harness,1998 Toyota Sienna
    I suppose it is possible that something, somewhere was not installed correctly when you installed the Plug-N-Tow Wiring harness, # 43475, into your 1998 Toyota Sienna. There is an easy way to determine if you have the sides switched. The wires with yellow, red, and brown plug into the driver side taillight wiring. The Connector with the green wire plugs into the passenger side taillight wiring. make sure that the white ground wire is attached to a bare metal surface. Looking at the picture...
    view full answer...
  • Is Drilling Required to Install Draw-Tite Trailer Hitch # 75120 on a 2001 Toyota Sienna
    In order to install the Draw-Tite trailer hitch, # 75120, you would need to drill 2 holes, 1 on each frame rail. I have included a link to the installation instructions for you to view. Drilling the holes will not be that difficult. You will attach the hitch to the 4 (2 on each side) holes that are already there. Then you will use the hitch as a template and drill the holes for the remaining two attachment points. Using a special high quality drill bit like the 1/2 inch rotabroach bit...
    view full answer...
  • Wiring Adapter for Installing a Prodigy Brake Controller, Part # 90185 on a 2000 Toyota Sienna
    Some vehicles have the provision for plugging the brake controller directly into the wiring under the dash, but unfortunately that option is not available with your 2000 Toyota Sienna. Your Brake Controller will have to be hardwired directly into the existing vehicle wiring. We have a Brake Controller Installation Guide available on our web site. As the Guide mentions, in addition to a brake controller, you will also need the appropriate installation kit (Part # ETBC7 for a 7-Way Connector...
    view full answer...
  • Is it Required to Use all 6 Bolts to Install the Draw Tite Hitch part # 75120
    It sounds like you have the Draw Tite Hitch part # 75120 for your 2003 Toyota Sienna. I can only recommend that you install this hitch per the manufacturer recommendations by using all 6 of the installation points. Otherwise the warranty would be voided. If you need trailer wiring you would want the Hopkins Harness part # 43475. For a ball mount, hitch ball, and pin and clip, I would recommend the etrailer Ball Mount Kit, part # EBMK4. This is a kit which includes 2 ball mounts, a 1-7/8...
    view full answer...
  • Will the Thule Apex 5 Bike Rack Fit on a 2002 Toyota Sienna with a Draw-Tite Hitch
    You are correct, the Draw-Tite Hitch # 75120 will work for your 2002 Toyota Sienna and unfortunately some drilling is required. The upside to installing a trailer hitch on your vehicle is that it is only a one time thing. Once you have the hitch installed, your Thule Apex 5 bike rack will work well. Another advantage to installing a trailer hitch on your vehicle is having the ability to tow a trailer if the occasion arose. I have listed a few more items that you will need to complete...
    view full answer...
    Image 1 for
  • Towing Set Up for 2000 Toyota Sienna
    As far as a license, you can tow with your normal driving license, yes. As far as the capacity of your 2000 Toyota Sienna I looked at an online version of your owner's manual and it stated that the maximum towing capacity without the towing package is 2,000 lbs and with the towing package it is 3,500 lbs. If you are unsure if your Sienna has the towing package you can contact your local Toyota dealer with your VIN and they will be able to tell you. Keep in mind if your trailer and cargo...
    view full answer...
  • Trailer Hitch, Wiring and Accessories for a 1999 Toyota Sienna XLE to Tow a Boat Trailer
    The Draw-Tite Max-Frame Trailer Hitch Receiver - Custom Fit # 75120 does require drilling to install on your 1999 Toyota Sienna, the Draw-Tite hitch # 36298. I have included a link to the installation instructions for you. You would also need the ball mount kit # EBMK4, this will give you the ball mount, 2 balls, and the pin and clip. For trailer wiring, use # 43475. I have included some instructional links on the wiring as well. If the boat has an electric reverse lockout feature and...
    view full answer...
  • Does The Class III Frame Trailer Hitch, Item # 75120, Require Drilling on the 2002 Toyota Sienna Van
    For the Class III Max-Frame Trailer Hitch Receiver, item # 75120, drilling will be required for installation. the installation is as the instructions read. Some items you may need to complete your towing setup include. DrawBar Kit # EBMK4 Wiring Harness # 43475 Hitch Lock # e98879 Bike Rack # S64670
    view full answer...
  • Replacement Truxedo Lo Pro Soft Roll-Up Tonneau Cover on a 2008 Ram Quad Cab
    Yes, we do carry the replacement part you need! Here it is Item # TX546601-CVR. This is a replacement cover for your Truxedo Lo Pro Soft Roll-Up Tonneau Cover Part # TX546601 on your 2008 Ram Quad Cab.
    view full answer...
  • Recommended Brake Controller for 2000 Toyota Sienna
    Either the Curt Class III # C13511 or the Draw-Tite # 75120 would be an excellent choice that would work very well for you. Both hitches have similar capacities and would install in similar manner. The Hopkins # 43475 trailer wiring harness you referenced would work just fine. A brake controller is not a vehicle specific item, you can use just about any controller on just about any vehicle. I would highly recommend a proportional controller like the Tekonsha Prodigy P2, part # 90885. A...
    view full answer...
  • Adding a 12 Volt Circuit to a Trailer Connector on a 1999 Toyota Sienna to Charge a Trailer Battery
    First, the 12 volt power from the vehicle battery will only provide a maintenance charger to a trailer mounted battery, it cannot charge it up. The wiring is too small and the battery and alternator on the vehicle are not strong enough to push back the appropriate voltage. It is best to charge the battery using an AC battery charger such as # CTEK56353. Several of us here use this charger and it works beautifully. It will not overcharge a battery and it can revive worn (not dead) batteries. If...
    view full answer...
  • Trailer Hitch Recommendations for 2000 Toyota Sienna
    I would recommend the Draw-Tite Class III receiver, part # 75120. A Class III hitch uses the 2 inch receiver opening, versus the 1-1/4 inch opening used by the Class II. Having the more common Class III will allow you more flexibility in choosing hitch mounted accessories like bike racks or cargo carriers. According to my research, the 2000 Sienna has a 2000 lb towing capacity, or 3500 lbs if equipped with the tow package. If you do not know if the van has the tow package, you can call...
    view full answer...
  • Ball Mount For 2002 Toyota Sienna With Curt Hitch C13511 For Towing U-Haul Trailer
    I can help you out with the right ball mount and hitch ball for your 2002 Toyota Sienna so you can tow a U-Haul trailer with the Curt Trailer Hitch Receiver # C13511. When we installed this hitch on a 2002 Sienna, we found that the distance from the ground to the top of the hitch receiver was 13-1/2 inches; since the bottom of the U-haul coupler is going to be 18-1/2 inches from the ground (that is what they mean when they say "optimal ball height" as that is how far off the ground the...
    view full answer...

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

Info for this part was:

Employee Robert G
Expert Research:
Robert G
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Jeff D
Installed by:
Jeff D
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
Alexander C

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.