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Replacement Tekonsha Trailer Breakaway Switch

Replacement Tekonsha Trailer Breakaway Switch

Item # 420000
Retail:$31.99
Our Price: $13.81
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  • Reviews (62)
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Tekonsha Accessories and Parts - 420000

  • Trailer Breakaway Kit
  • Switches
  • Tekonsha


Features:

  • Application: up to 4-axle trailer brake systems



2010-B125 Tekonsha Replacement Breakaway Switch for Kit 2010-P




California residents: click here


Video of Replacement Tekonsha Trailer Breakaway Switch

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




Video Transcript for Tekonsha Trailer Breakaway Kit 420000 Review

Today, we're going to be taking a look at the Tekonsha Replacement Breakaway Switch. Now, a breakaway switch is designed to apply power to the trailer brakes, to stop the trailer should it become disconnected from the tow vehicle. If the trailer and vehicle disconnect, the vehicle pulls on this cable right here, which pulls the pin out of the switch. Once this happens, the trailer brakes are applied, which will bring the trailer to an eventual stop. The kit is going to come with the switch. It's going to come with the wiring. It's going to come with the pin.

It's already installed there, and it's going to come with the cable. It's already attached. The wire leads on this side, these are going to measure 48 inches, or 4 feet long. One wire gets connected to power, the other wire gets connected to the electric trailer brakes. On this side, we're going to have the cable.

This is a high-strength, steel cable that's covered with a protective coating to keep it from fraying and to keep it from scratching anything that it comes into contact with. Now, this unit is designed for 1 to 4 axle trailer brake systems. The cable length is going to measure 48 inches or 4 feet long. It's got the looped end on here, that would connect to the tow vehicle. When it comes to the dimensions of the switch, it's really nice, low-profile design. This is going to give us an overall length measurement, and I am including the bracket.

From edge to edge, we're looking at about 4 7/8 inch long, and that's measuring from the end of the bracket to the end of the pin. The switch body, that's going to give us a measurement of about 3 inches long. The overall width, you can see that the switch kind of hangs out over the side a little bit, so the overall width is right around 1 7/8 inch. Just that bracket width is going to be about 1 1/2 inch. Then, the height, or the thickness, it's only about 7/8 of an inch. It does have a mount hole right here.

That's going to give us a diameter of 1/4 of an inch, and hardware is not included to get that mounted to the trailer frame. That's going to do it for today's look at the Tekonsha Replacement Breakaway Switch.

Customer Satisfaction Score:


Customer Reviews

Replacement Tekonsha Trailer Breakaway Switch - 420000

Average Customer Rating:  4.8 out of 5 stars   (61 Customer Reviews)


by:

Put the axle seals in the same box as 40 hooks and bent a few of them a bit

Etrailer Expert

Jenny N.

1/13/2024

Oh no! I will have our Customer Service team reach out to you.



by:

This allowed me to back up my camper easier because it move the distance from hitch to wheels just enough. Very very strong.



by:

Helped make it easier to back up traile r.



by:

Purchased this switch to replace old rusty unit on our cargo trailer. I checked function with volt meter prior to installation and it works as advertised. Quality seems to be very good. It's one of those things you have to have but hope it never gets any opportunities to perform! Good customer service and prompt delivery. No problems.

Ken R.

8/28/2016

No problems. Unit is holding up well and dont foresee any problems.



by:

etrailer products and service are excellent! With their helpful videos and staff (plus a little help from Curt Manufacturing and our teardrop trailer manufacturer (CampInn)) I was able to install electric brakes on the trailer, and a controller in my vehicle by myself. I had never installed electric brakes before. Everything works perfectly!



by:

Good product, simple and works. Used this to replace the original brake switch due to it breaking. Wired to a small 12V breakaway battery then to Blue brake wire on the car trailer and all works as it should.



by:

easy as falling off a log to install to replace my old one

Robert

12/16/2022

despite my best effort it is still working. it constantly exposed to road dirt, rain and heat



by:

Ordered battery box and break away switch. Received item in a timely matter and was a good quality for the price. Happy with E-trailer co. will order from them as needs arise.



by:

Always have what I’m looking for and great prices



by:

This item was exactly what I needed. The etrailer site was so easy to navigate and the selection of items cannot be beat. Whether you are looking for a component or a complete kit, they seem to have it all.



by:

Right parts at a great price !!!



by:

Great replacement breakaway switch.



by:

This is an exact replacement for the oem on my trailer. Won't install until spring, but I expect it will work fine. Received product very quickly and in good shape.



by:

Quality part good service



by:

Purchased a second hand RV that had a damaged switch and ordered an exact replacement from etrailer that works great.



by:

This is a geeat safety feature and eTeailer has excellent customer service and is our go-to place for anything for our trailer



by:

Products I received were easy to install. I followed the instruction videos on your web site which were very helpful. I am very satisfied with your service.



by:

Happy with service and all the parts I buy..



by:

Bought for an exact replacement of existing switch which the contacts rusted out on. worked perfectly!



by:

Quality product and fast order processing by etrailer. Thanks guys, I will be checking with you for all my future needs.



by:

Easy install



by:

Got it in the mail faster than the estimated shipping! Easy install. This website has a lot of videos of installations which are helpful.



by:

Etrailer was great to work with. They had the product that I needed and was received the next business day. Quality product at a good price. I will absolutely use them again.



by:

Products i bought was good quality and etrailer ships out quickly. I like buying from company that is quick



by:

Great service, reliability, and respons iveness.


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See what our Experts say about this Tekonsha Accessories and Parts

  • Trailer Break Away Switch is Draining Trailer Battery
    There is always going to be power going to the breakaway switch but that power will not go anywhere unless the pin is pulled. And if the pin is pulled your brakes would lock up. There could be something else that is draining the battery. Check all the wiring to the battery, brakes, and break away system. You will be looking for loose or broken wiring, corrosion, and loose connections. Clean off dirt and corrosion on the wiring/connectors. You should also know that the 12 volt circuit from...
    view full answer...
  • Should a Rusted Trailer Breakaway Switch be Replaced
    The pin that keeps the contacts inside a break away switch is plastic or otherwise a material that does not conduct electricity. As long as the contacts on the inside are not rusted the switch will continue to work. There is a way you can test it and I have linked an FAQ that shows how. Given that rust spreads it sounds like it would be a good idea to replace the switch. You can use any switch, like # 420000, that you have referenced. If the wiring to and from the switch is removed then...
    view full answer...
  • Solution for Needing Blue Ox Breakaway Switch Replacement for BX88181
    The Blue Ox breakaway switch BX88181 is no longer available but it was basically just a standard breakaway switch so you could use the part # 420000 in place of it very easily. It functions the exact same and would wire in the exact same way as well.
    view full answer...
  • Replacement Pin for an LBS48-16 ESCO Break Away Switch
    While we do have numerous replacement break away system pins, all of which are similar, I cannot guarantee that any will fit your ESCO brand switch because they have not all been tested together. The difference in cost between a replacement pin and a new switch is minimal so I advise just replacing the switch with # HM20010.
    view full answer...
  • Should Breakaway Switch Activate Brake Magnets When Pin Is Pulled
    Yes, the brake magnets should engage when pulling a properly wired breakaway switch pin. If the brakes aren't locking up on your trailer when pulling the pin then I recommend making sure the power source (battery) for the switch is fully charged and that everything is properly connected. When testing the switch I don't recommend having the trailer hooked up to the tow vehicle just so you can avoid any potential damage to the brake controller or wiring on the vehicle. I have attached a...
    view full answer...
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  • Replacing Breakaway Switch On a Trailer with ESCO Breakaway System
    You likely can use any replacement switch since all they do is complete a circuit when the pin is pulled out. One wire on the switch should be connected to the positive battery terminal on the trailer. The other will tee into the wiring leading from the trailer connector to the brake magnets like in the diagram I have included. Just follow the wires on the old switch to where they are connected and remove them. I have also included a link to the right that should help.
    view full answer...
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  • Wiring an Up/Down Switch to Hydraulic Pump on a Dump Trailer
    It sounds like you have a switch that has 3 positions, up, down, and off, similar to # PK34312. For each position that requires power there will be an input from the 12 volt power source and an output from the switch to the device it runs. You will run power in from the 12 volt source to the switch. There is likely a single input from the 12 volt power source. Then one output for up and one for down that will attach to the hydraulic pumps wiring accordingly. There is also likely a terminal...
    view full answer...
  • Replacement Breakaway Switch, Cable and Pin For Tap By Hoppy Switch
    I'm going to have to recommend replacing the entire breakaway switch as I cannot locate any replacement parts for your Tap by Hoppy switch. I recommend the Tekonsha Trailer Breakaway Switch # 420000 for a replacement. The wiring is long enough to run to the factory connectors so you do not have to worry about splicing wires where they are going to be exposed to the elements. It also connects with a single screw and uses a 49" long cable and pin.
    view full answer...
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  • Replacement Breakaway Switch for a 1991 Dutchman Camper Trailer
    We do not carry the Kool-RV products so any of replacement pins are not a for sure fit because they have not been tested together. What I recommend is to go ahead and replace the the whole switch since it is not very expensive. You could use # 420000 that you have referenced or another switch like # HM20010.
    view full answer...
  • Troubleshooting Wiring Issue of Trailer Breakaway System
    Most likely the problem is not insufficient amperage if the fully charged breakaway battery won't apply the brakes. You can test this however by running a jumper wire from a car battery to see if the much higher amperage of that battery does the job. I would be very surprised if the problem wasn't the wiring. Electric stuff can be frustrating to diagnose, but if you go over all of the connections and compare the setup to the diagram I attached you should be able to find the problem.
    view full answer...
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  • Can the Pin On a Tekonsha Breakaway Switch Be Removed To Replace Steel Wire
    Yes, the pin can be pulled off and you can then replace the wire. Make sure that everything is disconnected so you do not accidentally set the breakaway kit off.
    view full answer...
  • BrakeBuddy Breakaway Switch and Battery Charger Kit for Flat Towed Vehicle
    Breakaway cables are actually pretty universal so you should be able to use the Tekonsha Trailer Breakaway Switch # 420000 that you referenced for your BrakeBuddy. The BrakeBuddy does utilize banana clips to connect to the BrakeBuddy itself so you will need to get some of those from an electrical supply store. To charge the battery in your vehicle use the Battery Charge Line Kit for Towed Vehicles # RM-156-25. I typically recommend this with the Flexo-Coil Wiring Kit # RM-15267 for a towed...
    view full answer...
  • Are There DOT Regulations on the Pull Pin Lanyard of a Breakaway System
    That we or Tekonsha are aware of there aren't any restrictions on the cable used on breakaway system. Typically in towing situations the restrictions aren't that specific. They will say you need a breakaway system that functions, but they won't get down into the materials used of the system in question. For more information on breakaway systems check out the link I attached.
    view full answer...
  • Breakaway Battery Causes Trailer Breaker to Pop When Connected Troubleshooting
    Sounds like you have at least a few wiring problems going on with your setup. Instead of trying to troubleshoot each issue you have I think it would be smart for you to inspect all of the trailer wiring you have starting with the 12 volt circuit from your tow vehicle to the battery and breakaway system to see if you can find any shorts or exposed wire and fix as necessary. I attached a diagram and an FAQ on breakaway systems for you to check out. I also attached an FAQ on trailer wiring...
    view full answer...
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  • Wiring a Trailer Breakaway Kit on a Bigfoot Travel Trailer
    In order for a break away system to power electric trailer brakes, it will need a 12 volt power source (a battery mounted on the trailer). The battery has to provide a full 15 minutes of braking power to comply with DOT regulations. On the trailer connector there is a wire that goes back to the trailer brakes. This wire may be black or blue depending on the specific system. Attach one wire from the switch to the wire that goes to the trailer brakes. There should be another wire, usually...
    view full answer...
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  • Trailer Breakaway Switch Compatible With 12-Volt RV Battery
    Yes, the Trailer Breakaway Switch # 420000 can be wired to the 12 volt RV battery on your trailer as long as the battery has a charge line to maintain its power while you are towing. I prefer to use the Fastway Zip Trailer Breakaway Switch with Coiled Cable in 4' # FA80-00-2040 or 6' # FA80-00-2060 since there is less chance of the coiled cable becoming damaged. I have included the wiring diagram from Fastway that shows how the breakaway switch is wired to your RV battery.
    view full answer...
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  • Is 12 Gauge Wire Required For A Breakaway Switch Going To 12 Trailer Brakes That Use 12 Gauge Wire?
    The wire gauge on the Replacement Breakaway Switch for Tekonsha Trailer Breakaway Kits # 420000 are also 16 AWG, however since your brakes are using 12 AWG wire I recommend splicing in 12 AWG wire # 12-1-1, with some butt connectors # DW05745-10 since it's running more than 5', which is the maximum distance allowed before you should beef up the wire size.
    view full answer...
  • Identifying a Trailer Breakaway Switch with ESCO Printed on the Switch
    ESCO actually stands for Elkhart Supply Corporation, that is the brand of your breakaway switch. Most likely it is part number LBS48-16. If you are looking for a replacement switch the Hopkins Replacement Break-Away Switch # HM20014 should work well for you. I attached a couple FAQ articles on breakaway switches for you to check out as well.
    view full answer...
  • Troubleshooting Brake Controller that Only Works with Override Lever
    Sounds like your brake controller will apply your trailer brakes if you apply the manual override lever but not when you press the brake pedal. This is a fairly common problem and the solution is the red wire of the brake controller. Make sure it is connected to a circuit that only sees voltage when the brakes are applied and none when released. Most likely the connection is the issue and just reconnecting the circuit will cause the controller to work again.
    view full answer...
  • Can Replacement Breakaway Switch # 420000 Be Used with Any Breakaway System
    For the most part, all breakaway situations work the same way. There are a few exceptions but they are not common. If your existing system used 2 wires like # 420000 then you can use it or any similar switch. I have included a link to all of the breakaway switches we carry.
    view full answer...
  • Availability of a Coiled Breakaway Cable To Keep the Cable From Getting Caught in Bed of Truck
    We have the Roadmaster Coiled Breakaway Cable, # RM-8603, that could be used in the bed of your truck to keep the cable from getting caught on items in the bed when towing your fifth-wheel or gooseneck trailer. This cable can extend up to 8 feet in length to allow cornering and sharp turns with the trailer.
    view full answer...
  • Are Trailer Brake Assembly Magnets Positive and Negative Wires
    On trailer brake magnets like what's on the brake assembly # 23-106 the magnets are not polarity sensitive which means either wire can be used as the power or ground as long as the other is the opposite. This is why the wires of the assemblies are typically the same color like on the # 23-106 they are both white.
    view full answer...
  • How Much Force Is Required To Remove The Pin On a Trailer Breakaway Switch?
    The Trailer Breakaway Switch # 420000 should be somewhat difficult to pull out. It is designed to stay in place unless the trailer disconnects and is held firmly in place to not be pulled out due to vibrations and possible road debris when towing. If you give the cable a quick tug it should allow the pin to more easily be removed for testing. You will then be able to attach your Coiled Breakaway Cable # FA80-01-2140.
    view full answer...
  • Solution for Trailer Breakaway Pin that is Broke and Won't Stay Installed
    The easiest solution for a breakaway pin that keeps popping out would be to replace the entire switch since they are all universal and the install is really easy. For that the # 420000 would be a great solution that will wire right in place of what you have.
    view full answer...


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