bing tracking image
  1. Trailer Wiring
  2. Hopkins
  3. Trailer Connectors
  4. Vehicle End Connector
  5. 4 Flat
  6. Plug Only
Hopkins Endurance Quick-Fix Replacement 4-Way Flat Trailer Connector w LED Test Lights - Vehicle End

Hopkins Endurance Quick-Fix Replacement 4-Way Flat Trailer Connector w LED Test Lights - Vehicle End

Item # HM48190
Our Price: $9.77
You Save: 63%
Trailer Wiring
Add to cart
In Stock
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

Customer Photos


Need help with installation?
Locate installers near me
Replace a damaged 4-way flat, vehicle-end connector in just seconds with this Quick-Fix plug. Simply remove the damaged plug, insert your wires into the new plug, and press closed to secure the wires. Built-in LEDs confirm proper connection. Great Prices for the best trailer wiring from Hopkins. Hopkins Endurance Quick-Fix Replacement 4-Way Flat Trailer Connector w LED Test Lights - Vehicle End part number HM48190 can be ordered online at or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (89)
  • Q & A (0)
  • Videos (1)
  • Photos

Hopkins Trailer Wiring - HM48190

  • Trailer Connectors
  • Vehicle End Connector
  • 4 Flat
  • Plug Only
  • Hopkins

Replace a damaged 4-way flat, vehicle-end connector in just seconds with this Quick-Fix plug. Simply remove the damaged plug, insert your wires into the new plug, and press closed to secure the wires. Built-in LEDs confirm proper connection.


  • Plug replaces a damaged 4-way flat, vehicle-end connector in seconds
    1. Cut off the broken plug
    2. Insert existing wires into new plug
    3. Press the cover on the new plug closed to secure the wires in place - no wire stripping required
  • LED test lights confirm that electrical connections have been made
  • Integrated dust cover protects the terminals from the elements
  • Wire-retention plate ensures a secure installation
  • Easy-pull finger grips make it simple to plug in and unplug the connector - reduces strain on wires
  • 3-Year limited warranty

48190 Hopkins Endurance Quick-Fix Replacement 4-Way Flat Connector w/ LED Test Lights - Vehicle End

California residents: click here

Video of Hopkins Endurance Quick-Fix Replacement 4-Way Flat Trailer Connector w LED Test Lights - Vehicle End

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

Video Transcript for Hopkins Wiring - Trailer Connectors - HM48190 Review

Today, we'll be reviewing part number HM48190. This is the Hopkins Endurance Quick Fix Replacement 4-Way Flat Trailer Connector with the LED test lights. This plug is designed to replace a damaged 4-Way Flat vehicle and connector in just a few seconds. All you got to do is cut off the broken plug, insert the existing wires into the new plug, and then press the cover on the new plug closed, to secure the wires in place. No wire stripping is required. Just cut the LED test lights up here. That's going to confirm the electrical connection has been made correctly. It also has the integrated dust cover that's going to protect the terminals from the elements.

It's got a wire retention plate that's going to ensure secure installation. It's got the easy pull finger grips that make it simple to plug in and unplug the connector, that really helps reduce the strain on the wires. In that housing, you have 2 little mount holes you can use to secure this to your application. It's also going to come with some terminal grease for your installation. That's going to do it for today's review of part number HM48190. This is the Hopkins Endurance Quick Fix Replacement 4-Way Flat Trailer Connector. .

Customer Reviews

Hopkins Endurance Quick-Fix Replacement 4-Way Flat Trailer Connector w LED Test Lights - Vehicle End - HM48190

Average Customer Rating:  4.8 out of 5 stars   (89 Customer Reviews)

Replace a damaged 4-way flat, vehicle-end connector in just seconds with this Quick-Fix plug. Simply remove the damaged plug, insert your wires into the new plug, and press closed to secure the wires. Built-in LEDs confirm proper connection.


I recently had a need for the Hopkins Endurance Quick-Fix Replacement 4-Way Flat Trailer Connector w LED Test Lights - Vehicle End - HM48190 to replace the faulty one on my van. It was easy to find what I needed on the site and the price was comparable to other sites I had visited. I decided to go with etrailer because I had previously ordered the hitch through them. I appreciated the fact that an email was sent out confirming that they received the order as well as a follow-up email telling me that the part was shipped along with providing the tracking number. The installation of the part was easy and took no time to complete. Overall it was a fine experience and if I need to order anything in the future, I will be sure to come back and order from etrailer.


Great product. Easy to install


These male and female 4 wire pigtails are advertised as "quick fix" connectors. I use these connectors so that I can make my own pigtails. Sure, you can buy a pre-wired pigtail and add on to it by splicing the wire with butt connectors, however by using the quick fix connectors, you eliminate the need for the butt connectors and an additional possibility of a place to have a problem such as corrosion. The connectors are easy to use, reliable and you do not have to use the conventional 4 flat wire. I have used these connectors with individual wires as well as a round, 4 conductor wire. In addition, these connectors are a newer version with screws to connect the plug together rather than a snap connector. This version also makes them easier to take apart in case of a malfunction.



The pigtails that I purchased are still in excellent condition and have held up well in the weather.


Wanted a connector I could bolt to my bumper instead of leaving it dangling. This fit the bill. My only complaint is that the no-strip wire connectors were apparently designed for a heavier gauge wire than my wiring harness has (no gauge range stated on the web site or packaging), so they didn't make good contact on the first try. I had to double the wires over before pushing them in so they made good contact (that made them a little too tight but it worked). I didn't originally think I needed the LEDs, but they came in handy letting me know about the connection problem, and reassured me that my fix took care of it.

Jim R.


Some of the lights on my trailer have stopped working. I havent had time to investigate, but I would not be at all surprised if it is related to the wire gauge mismatch.


My Toyota 4-Runner has the trailer wiring hookup on the left side of the truck instead of the center near the trailer hitch so I have to use an extension wire. I replaced the end that the trailer plugs into with a matching end of this product so that the length allows me to tywrap the new end by the trailer hitch area. I then replaced the trailer connector with the same style of this product. It’s now a breeze to test the trailer lights and determine if and malfunctions are on the truck or trailer wiring.


This connector was just what I was looking for to avoid doing any soldering or the entire harness. Was quick and easy to install. As a bonus, delivery was expected on a Mon., got it on Fri. Thanks!

Tom M.


Worked good for a short time then I noticed one of the lights out on it. Tried getting better contact then it never worked again so I just took it off.


I broke the ground post off the hitch connector on my 2008 Toyota RAV4 and I bought this replacement connector on your website. It was very easy to just clip the four wires on my broken connector and insert the wires into this replacement connector. The replacement connector has two screws to open it up and then you just push the four wires into each push "V" connector. No stripping wires or terminal screws. The LED lights work just like the description on the website which made it easy to confirm the connections were good. The overall project took about 30 minutes. The only problem I had was that
the two bracket holes didn't match the holes on my tow bar, so I could only use one screw to re-attach the new connector. I used electrical tape to secure the wires so they wouldn't hang down.


This connector is much more robust than the standard ones. It was simple to install and the bolt-together cover keeps the wiring firmly connected. I have had no problems with either of my trailers. The end cap stays on and keeps the contacts clean. Finally, I like the red LEDs that tell you at a glance which wires are live. Trailer wiring the way it should be.


My electrical connection to my trailor works very well with this connector.

Larry F.


I have used this product for a year now and it works as good as it did when I purchased it. Great product.


Product is good, easy to install. Light on individual wire makes it easy along with the clear instructions that come with it. Video of item is very helpful.

Worst thing UPS to USPO mail service: always seems to be a day or two dead period.

Douglas S.


Great, still working


Very easy to install and fast delivery


Could not have been simpler. Backed truck up on to ramps, unbolted the original harness (on which the ground plug had snapped off) verified the colors and placement of the wires on the new plug, cut them, slid the wires into this new plug per the directions, screwed the cap on and bolted it up in place where the original was. The LED's showed everything was working and it was done. No more than 10 minutes beginning to end. Could not have been easier or less expensive to repair my harness. A win/win.


Great box for making all the connections for the plug harness, trailer brakes, and the brake battery and safety switch. etrailer has all the parts needed to rewire a trailer from plug to lights!!!


Exactly what I wanted


Great replacement for my 2000 Ford Ranger and likely any vehicle with tow light connector.

My cables were a little thin for the internal V spikes that you splice the wire in to, so I needed to take a pair of needle nose pliers and wrap them around the lead inside.

Came with terminal grease, which I didn't expect.

The three lights on the connector are great to make sure it's all working.

Highly recommended.


Trailer connector works great. Mounts easily and wires attach with a cover plate. LED's show everything is working. billooltewah


great price - quick delivery - simple i nstallation

Ed D.


no problems - have them on two vehicles - LEDs are great added feature - already have a spare to use on my next truck!


I have not installed it yet but I like that it is sturdy construction with a hefty cap to keep the contacts clean. Extra added bonus is it actually has led's so that you know the connection is good! Only A few days delivery. Looks easy to install, no soldering or wire connectors needed.


Just what I needed. The service was qui ck.


This worked like a charm and I'm about a 2/10 on the handyman skills level. Was easy to install and worked immediately. Service from etrailer was first rate - kept me up to date with shipping etc and followed up to check on my satisfaction. Delighted


great product fasten it under my trailer hitch with two self taping screws. took about five minutes.product was shipped and delivered on
time as promised. works great!


Best replacement connector! simple and easy to use and I love the test lights. solved my erratic non-working tail lights.


Ordered a bunch of stuff for hooking up a towed. Everything arrived as ordered and quick shipping. Everything fit the application without much trouble. Communication from etrailer was excellent. I would purchase from etrailer again.


I haven't had a chance to use it yet cause my camper is still under about two foot of snow but I had one before and it worked awesome. Both of the products that I ordered go together. You people are awesome I've ordered from you before and your really fast and sell a very high standard items at a low price.


We make our Professional Tow Lights with this plug end and have not had any issues in 3 years.

Nice product. EZ to use. LED Features tell ALL.

Show More Reviews

See what our Experts say about this Hopkins Trailer Wiring

  • Running Wiring For Bully Light Bar At Back Of 40-Ft Fifth Wheel Trailer
    There are a couple of ways you can run the wires for the Bully Light Bar, part # BLS-1103. The easiest way would be to attach the light bar wiring to the wiring you have at the rear of your fifth wheel trailer. That is if you can access the wiring easy enough either by getting to the wires under your trailer or by removing the lights and getting to the wiring behind them. Another way would be to install a junction box like part # 38656 on your fifth wheel and attach the trailer wiring...
    view full answer...
  • Adapter Harness to Convert Tekonsha/Hopkins Male Plug to Female Plug
    It sounds like you're trying to convert one of the male ends to female. If that is correct you need an adapter with female on both ends so you can use the the # HM48035 and add the # HM48190 to the other end. There are no premade adapters so this is the simplest solution. You could also cut off one of the male ends you and add the # HM48190 so you have less parts to purchase.
    view full answer...
  • 4-Way Vehicle Side Trailer Connector that Can be Spliced Into Wires from Trailer Wiring Harness
    I have a great option for you. Take a look at the Hopkins Quick Fix connector # HM48190. All you have to do is remove the screws on this connector, place the wires in the correct locations, and then put the cover and screws back on. The white wire will go to the one exposed pin. Next to it will be the brown wire, then the yellow wire, and the green wire is last. This connector also has a handy LED test light feature so you can see if each function has power without using a meter or circuit...
    view full answer...
  • Can a Reese Multi Tow 7-Way and 4-Pole Trailer Connector be Repaired if 4-Pin Connector Broke
    You can purchase a separate 4-pin connector like # HM48190 but it won't fit the slide slot on the mounting bracket on the multi-tow 7-way and 4-pole trailer connector # 74682. You can zip tie it or even let it hang if you prefer. I included a couple video reviews for you too.
    view full answer...
  • Troubleshooting Trailer Wiring For Double Towing Camper and Motorcycle Trailer Behind 2016 Tundra
    It sounds like you want to tow 2 trailers and need the wiring for both. It is completely possible to do that as long as your truck can handle the total weight of the two loaded trailers. For the wiring, there are a couple of different options. You can run an extremely long harness like you mentioned that will be a simple customized length or you can tap into your trailer wires to create a harness at the back of your camping trailer. My recommendation is to do the latter. To tap...
    view full answer...
  • Where to Attach the 12 Volt Power Circuit for 7-Way Wiring on a 2006 Jeep Rubicon
    For the 12 volt accessory circuit of the 7-way you plan on installing on your 2006 Jeep Rubicon you will want to run that all the way to the positive side of the vehicle battery through a 40 amp circuit breaker like part # 9510. 10 gauge wire should be used. If you are looking for a keyed power source that only sees voltage with the key on you will need to also install a part # PK5231201 inline with the 12 volt power circuit from the battery with a keyed power source run to the middle...
    view full answer...
    Image 1 for
  • Solution for Connecting RV 4-Flat Male to 4-Flat Male on Tow Dolly
    I do have a solution for you, however we do not have any adapters available that will allow you to connect the two male 4-flat connectors on your RV and tow dolly. An RV or vehicle will typically have a 4-flat female connector at the rear for hook up with the trailer. I recommend simply cutting the male connector from the RV and replacing it with the Vehicle End Hopkins Endurance Quick-Fix Replacement 4-Way Flat # HM48190. After cutting off the RV's male connector, you will simply insert...
    view full answer...
  • Trailer Wiring Harness with 4-Way Flat Connector for 1997 Honda Valkyrie
    First, with LED lights, the color of the bulb needs to match the color of the lens. Otherwise you will have dim lights or off-color lights. If you want you can replace just the 4-Way end on the harness that you have with # HM48190. If you want to replace the whole harness I recommend going with a powered option such as # 119250KIT which will get the power for the trailer lights directly from the battery instead of drawing it through the tail light wiring.
    view full answer...
  • Replacement 4-Way Connectors to Replace Damaged Connectors
    We sell replacement 4-way connectors like the part # HM48192 for the trailer end side or the part # HM48190 for the vehicle end side. You'd just need to cut off your damaged 4-way and wire in either connector to it. These also have circuit testers built in for each circuit as well.
    view full answer...
  • Adapter to Go from 6-Way Square on Tow Vehicle to 4-Way Flat Trailer Side Connector
    It sound like you want the opposite of adapter # 30104. That would mean your tow vehicle has a 6-Way square connector. What you can do is use # 37995 which has both the vehicle end and trailer ends. On the trailer end, you can wire the loose wires to a vehicle side 4-Way, # HM48190. Then you will have a 6-Way square to 4-Way flat adapter. The other option is to just replace the 4-Way flat on the trailer with the trailer end 6-Way that comes with # 37995.
    view full answer...
  • How To Make a Trailer Wiring Harness Adapter with Two Vehicle Side Trailer Connectors
    In order to obtain a trailer wiring harness with two vehicle side trailer connectors you will need to either splice two of the Hopkins Wiring Harness with 4-Pole Flat Trailer Connector part # HM48035 into one another with the Deka Heat Shrink Butt Connector part # DW05744-5 or you could just install the Hopkins Endurance Quick-Fix Replacement 4-Way Flat Trailer Connector part # HM48190 onto the opposite end. Unfortunately, we do not have a complete trailer wiring harness like the Roadmaster...
    view full answer...
  • Using Hopkins Tow Bar Wiring on 2011 Jeep Wrangler That Needs Charge Wire From RV
    You can use the Hopkins tow bar light kit part # HM56200 on your 2011 Jeep Wrangler as it's a confirmed fit, but the 4-way ends of this and the # A10-6034VP don't match as they are both male 4-ways. So what you could do is cut off the 4-way of either side and install the # HM48190 in place of it and you'd be able to make the connectors as needed. For a coiled extension to adapt the 7-way or your RV to the 6-way of the adapter you'd then want the # RM-1676-7 which will carry the charge...
    view full answer...
  • Can New 4-Way be Spliced Onto Trailer Wiring Harness 118566 on 2015 Ford Escape
    Yes, you can splice in a new 4-Way flat vehicle end, such as # HM48190. This vehicle-side 4-Way also has LED test lights so its easy to determine if one of the circuits isn't working. Or for a regular short-length harness you can use # 18252.
    view full answer...
  • Recommmended 4-Way Flat Trailer Wiring for Cargo Carrier Light Strip on Travel Trailer
    My recommendation for your application is to add a junction box like # 3375601101 which will allow you to connect another wire without "splicing in" on the trailer side and run wiring like # DW03240-1 for a longer run or # 16-4B-1 to the rear of your trailer and then use # HM48190.
    view full answer...
  • How To Mount Hopkins Endurance Quick-Fix Replacement 4-Way Flat Trailer Connector w LED Test Light
    You do not need a mounting bracket with the Quick-Fix Connector # HM48190 as it comes with mounting holes that you can use. A mounting bracket would only cover the LED lights that allow you to confirm that the wiring circuits on your 2007 Ford Explorer are working properly. It is best to mount it somewhere that you can easily access and will be able to see the LED lights to check operation at the connector. The Hopkins Fold-Over Mounting Bracket # HM48595 will not fit over the Hopkins...
    view full answer...
  • Converting Vehicle Side 7-Way Trailer Wiring to 4-Way Standard Wiring
    It sounds like you want to do a conversion from your 7-way to a standard 4-way trailer connection that has the 3 functions and ground. There are a couple different options for you that don't require much if you just need the 4-way connector for a trailer. You can use the Pollak 7 Pole to 4 Way Connector Adapter # PK12716 for the easiest connection. Your 2001 Xterra didn't come with a factory 7-way so you may find there is a 4-way plug connection behind your 7-way that you can simply...
    view full answer...
    Image 1 for Image 2 for
  • Troubleshooting Trailer Running Lights Not Working on Trailer
    I checked your order notes and it looks like you ordered part numbers # 9653P, # HM48192, and # HM48190. It could be as simple as a bad ground that is causing the running lights to now work, but since the bulb was blown that would more indicate a short on the wiring of the circuit somewhere. Check the wiring of the circuit for any exposed or cut wire and fix as necessary. I realize that's the last thing anyone wants to do in the cold but that is most likely the problem. The way you have...
    view full answer...
  • Low Voltage on Factory 4-Way Trailer Connector on a 2002 Toyota Tundra
    If the factory tow package wiring on your 2002 Toyota Tundra uses both fuses and relays then the issue could be a faulty relay. They can sometimes still allow some power to trickle back even if they are bad so that is one thing to check. There could also be a corrosion issue, ground problem, or wiring problem. If you are testing the pins on the 4-Way go ahead and test one of the wires going to the connector instead. If you get the proper voltage on the wire but not the pin then it is...
    view full answer...
  • Is the Terminal Grease Included with the Hopkins Connector Part # HM48190 Conductive
    The terminal grease that is included with the Hopkins Endurance Quick-Fix Replacement 4-Way Flat Trailer Connector part # HM48190 is non-conductive therefore you should not have any issues using it on the quick-splice terminals of the trailer connector. The grease as you mentioned is designed to keep out dirt and moisture therefore is highly recommended that you use accordingly. If you need more of the terminal grease for other applications then you can use part # 11755.
    view full answer...
  • How Can I Determine If My 2023 Toyota Highlander LE Has The Factory Tow Package Or Not?
    The only way to really know if your 2023 Toyota Highlander LE has the factory tow package or not is to contact your local Toyota dealer with your VIN. They can tell you exactly what features your vehicle came with. Vehicles with the factory tow package would have the connector right behind the bumper like you described. So based on that, it sounds like you do have the tow package. We still recommend having a dealership run your VIN to be sure. If you do have the tow package, we suggest...
    view full answer...
  • How to Troubleshoot a Trailer Connector Without Power
    If the trailer connector at the rear of your 1998 Ford F-150 is not receiving power, you will first want to check inside the connector for any dirt or debris. You can use electrical cleaner to clean the connector off, if needed. You will also want to give each of the wires leading into the connector a good wiggle to ensure they are properly attached. If the wires have come loose or the pins inside the connector are corroded, you can replace it using part # HM48190 for 4-way connectors or...
    view full answer...
  • How To Replace a 4-Way Trailer Connector Without Standard Wire Colors
    In order to replace a 4-way trailer connector you can use part # HM48192 for the trailer end or part # HM48190 for the vehicle end. These connectors both have built-in lights to help with troubleshooting. In regards to installation; the usual wire colors are green for right stop/turn, yellow for left stop/turn, brown for running, and white for ground. If you have different colors which is the case you will unfortunately have to test each wire for function by touching the wire lead directly...
    view full answer...
  • Alpena Trailblaze Tailgate LED Light Bar Does Not Show Passenger Side Lights
    For starters, I recommend that you check the ground for the 4-way trailer connector on your vehicle as this could very well be causing your issue. If the ground checks out then this leads me to believe there is an issue with the trailer connector on your 2004 Chevrolet Silverado or the trailer connector on the Alpena Trailblaze Tailgate LED Lights part # ALP77229. I see you said that you replaced the 4-way but I didn't catch if it was the 4-way on the vehicle or the 4-way on the light...
    view full answer...
  • Are Wesbar Coiled 4-Pole Connector 54000-026 and Hopkins Quick-Fix Connector HM48190 Compatible
    Yes, the parts you referenced, Wesbar coiled trailer-end 4-pole with pigtail leads # 54000-026 and Hopkins Quick-Fix Replacement 4-Way Flat Vehicle Connector # HM48190 are compatible. These two parts will give you a coiled 4-pole extension with both vehicle-side and trailer-side 4-pole connectors, with LED test lights on the vehicle side plug.
    view full answer...

< Previous

Do you have a question about this Trailer Wiring?

Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Frances L
Edited by:
Frances L
Employee Tyler C
Written by:
Tyler C
Employee Cole B
Installed by:
Cole 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.