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Replacement Tekonsha Trailer Breakaway Switch

Replacement Tekonsha Trailer Breakaway Switch

Item # 420000

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Replacement Tekonsha Trailer Breakaway Switch Switch 420000
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Product Images


  • Trailer Breakaway Kit
  • Switch
  • Tekonsha
Call 800-298-8924 to order Tekonsha accessories and parts part number 420000 or order online at etrailer.com. Free expert support on all Tekonsha products. Guaranteed Lowest Price and Fastest Shipping for Replacement Tekonsha Trailer Breakaway Switch. Accessories and Parts reviews from real customers.


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  • Reviews (28)
  • Q & A (31)
  • Videos (2)
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Tekonsha Accessories and Parts - 420000


Features:

  • Application: up to 4-axle trailer brake systems



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 Reviews

Replacement Tekonsha Trailer Breakaway Switch - 420000

Average Customer Rating:  4.9 out of 5 stars   (28 Customer Reviews)


- 420000
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. 222638


Comments

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

Ken R - 08/28/2016

20634

- 420000
by:

Perfect 515095



- 420000
by:

Shipped out quick 391483



- 420000
by:

Happy with service and all the parts I buy.. 374661



- 420000
by:

Fast delivery!! Thanks 337072



- 420000
by:

Bought for an exact replacement of existing switch which the contacts rusted out on. worked perfectly! 320356



- 420000
by:

Great replacement breakaway switch. 304880



- 420000
by:

Easy to install and wire. Great product! 295877



- 420000
by:

Top notch service! I placed an order mid-day as a rush delivery and received my items in the morning the next day. The product was exactly what I needed with no surprises. Keep up the great work! 271395



- 420000
by:

All items exceeded my expectations 264726



- 420000
by:

Great deal 261053



- 420000
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. 255059



- 420000
by:

good parts fast and cheap 242952



- 420000
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. 237792



- 420000
by:

Excellent heavy duty exactly what I wanted easy to install and very fast shipping will buy from again highly recommend pleasure doing business 236910



- 420000
by:

Great quick service have used them before will use them again. 223885



- 420000
by:

Great service great products 216191



- 420000
by:

Great service! 205762



- 420000
by:

Plenty of wiring and release cable. Great price. 178712



- 420000
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. 172157



- 420000
by:

Wow I received the parts today and that was fast service and it was exactly what i order. Thank You. 164014



- 420000
by:

I love you store always stock items, fast response, timely delivery 156036



- 420000
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. 155665



- 420000
by:

Quality product and fast order processing by etrailer. Thanks guys, I will be checking with you for all my future needs. 154150



- 420000
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. 105498



- 420000
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. 78696



- 420000
by:

Very impressed by the product and service that I received. Thank you and other products that I need I will be sure to buy from you all. 26980



- 420000
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. 10693


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Ask the Experts about this Tekonsha Accessories and Parts
Do you have a question about this Accessories and Part?


  • What Does a Trailer Breakaway Kit Do
  • Yes, what you described is the correct purpose of a trailer breakaway braking system. If for some reason the hitch and the safety chains were to fail and the trailer was to be completely unattached from the tow vehicle the breakaway kit would activate the trailer brakes so that it would stop as soon as possible. You would want to ensure that the length of the cable is enough so that under normal situations the pin would not get pulled while the trailer is still safely connected to the...
    view full answer...

  • Do You Have a Replacement Pin and Lanyard for a Trailer Breakaway Switch
  • If you have the Tekonsha trailer breakaway kit you will need the Replacement Tekonsha Trailer breakaway Switch, part number 420000, to replace your lost or broken cable and pin. If you have a Hopkins Breakaway system then you can order the Replacement Cable and Pin for Hopkins Breakaway Switches, part number HM20051 which works on the HM20059 and HM20060 breakaway switches.
    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...

  • 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...

  • 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...

  • Solution for Lost Plunger for Esco Model 2010 Breakaway Switch
  • The easiest solution I can provide is to just replace the entire switch with the part # 420000 that you referenced. Trying to replace just the plunger can be challenging and since all of the switches are basically universal it's just easier to replace the whole thing.
    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 Trailer Breakaway Switch and Grounding Wire On 14-Foot EZ-Dump Trailer
  • After speaking to my contact in the electronics department at Cequent, I have discovered what could be the source of the problem. If the ground is disconnected, the breakaway battery ground is disconnected, and if the trailer is not attached to a tow vehicle, the 12-volt current you are detecting in your trailer frame is the current that should be going to your ground. Try the test again with these issues resolved and the problem should take care of itself. If you continue to have the...
    view full answer...

  • How Does Replacement Breakaway Switch Wire into Circuit
  • I don't have a specific way to recommend wiring the part # 420000 to a dump trailer but essentially this switch wires into a circuit by just cutting the wire and splicing it between the two wire ends. Whenever the plug of the switch is inserted the circuit is dead and then when the pin is removed the circuit is active. I attached an install video for you to check out as well.
    view full answer...

  • Breakaway Switch Diagram for Installation on a Dump Trailer with Trailer Mounted 12 volt Battery
  • I attached a diagram showing how a breakaway switch, like part # 420000, would be wired to a trailer mounted battery like the one on your Loudo dump trailer. With this type of setup you would not want to pull the breakaway switch with the trailer connected to the vehicle, to avoid a short circuit situation which could damage your brake controller. When testing the breakaway switch just be sure to disconnect the trailer connector from the truck, as it would be in a breakaway situation. The...
    view full answer...

  • Replacement Breakaway Switch Recommendation for UPG D2901 Solution
  • I wish we carried that but we do not. One solution we can provide is to replace the entire switch with part # 420000. This will be the easiest solution and will work well as the switches are universal.
    view full answer...

  • Trailer Breakaway Switch Smoked/Melted When Trailer Was Unattended
  • The Tekonsha Replacement Trailer Breakaway Switch # 420000 that you referenced should work fine as a replacement part for your trailer's breakaway system. As for the cause for a smoking/melting switch, my first thought is a malfunctioning breakaway battery charger. If this unit failed it might have taken out the switch with it. We offer the Tekonsha Battery Charger for Trailer Breakaway Systems # 1024, whose installation is shown in the linked diagram.
    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...

  • Installation of Curt Triflex Brake Controller and Trailer Breakaway System
  • When you state you have the harness coming for the Curt product, I assume you are meaning the custom wiring harness for your Curt Triflex Brake Controller # C51140. When your controller is properly wired for your vehicle side trailer connection, then you simply add a breakaway kit to your trailer in case your vehicle becomes disengaged from your trailer. If you don't yet have the breakaway system, I recommend the Hopkins Engager Push-To-Test Trailer Breakaway Kit w/ Built-In Charger...
    view full answer...

  • 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...
    view full answer...

  • Replacing Breakaway System Switch on Lacrosse Travel Trailer
  • All the breakaway switches we offer serve the same function and are pretty much interchangeable as long as the switch on your trailer is normally closed. The circuit is normally closed until the switch pin is pulled, which closes the circuit and allows the voltage from the battery to reach the trailer brakes. Just because the system you currently have uses a switch from Bargmann, doesn't mean your replacement needs to be of that brand too. The Hopkins replacement breakaway switch, part...
    view full answer...

  • 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...

  • Replacement Trailer Break-Away Switch for a Hopkins Engager Trailer Break-Away Kit
  • The Replacement Tekonsha Trailer Breakaway Switch, item # 420000, is compatible with Tekonsha breakaway kits. The item # 20099 is a Hopkins breakaway kit, and it uses a Hopkins switch. The Tekonsha switch may work but for safety purposes we recommend replacing the switch with the original manufacturers switch. We offer two different Hopkins replacement switches with different lengths of lead wire. They are the Hopkins Replacement Break-Away Switch, 7 inich Lead Wires, item # HM20010, and...
    view full answer...

  • 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...

  • 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...

  • 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...

  • Troubleshooting Camper Breakaway Switch with Pin That Will Not Come Out
  • I am glad you were able to safety return home after your camper's brakes locked up. It sounds like your breakaway switch could be corroded internally. That would explain why the pin would not come out. It is possible that same corrosion caused a short inside the switch that in turn caused the breakaway battery to apply the trailer brakes. We can help you with a complete new breakaway kit like # 50-85-315 or the Tekonsha unit you referenced, part # 20020. We also offer breakaway switches...
    view full answer...

  • Wiring a Replacement Breakaway Switch
  • I can help you wire the Replacement Tekonsha Trailer Breakaway Switch # 420000 and the accompanying diagram shows exactly how it will be wired; I have also added a link to a video which shows it being installed. The white wire is a ground wire and the other two wires are interchangeable. One will be spliced from the from the switch and blue trailer brake wire that is running from the trailer connector to the trailer brakes. The other wire will be spliced to the blue brake wire coming...
    view full answer...


Do you have a question about this Accessories and Part?




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Info for this part was:

Expert Research:
Michael L
Video Edited:
Zack K
Expert Research:
Robert G
Expert Research:
Patrick B
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Brandon M
Updated by:
Laura H
Installed by:
Cole B
Photos by:
Sam P
Updated by:
Alexander C

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