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Replacement Tekonsha Trailer Breakaway Switch

Replacement Tekonsha Trailer Breakaway Switch

Item # 420000

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420000 - Switch Tekonsha Trailer Breakaway Kit
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  • 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






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 Trailer Breakaway Switch Installation

Today on this old horse trailer we are going to replace the break a way switch. And we are going to be replacing with part number 420000 Tekonsha, the first thing we need to do is remove the old switch. Its rib bitted into place so the first thing we need to do is drill out the rib bits and remove it, and also disconnect the wiring. The wiring underneath is a junction point here, and also a junction point, and heres our second one in the harness, what we will do is go ahead and disconnect it right here and we will put in new connectors at these points. We will use our old switch as a pattern to drill out holes for our new switch. Now we will go ahead and drill out our pot holes for that.

We will go ahead and run our wires through our metal bracket, and then through the frame. We use two self tapping screws to attach it back to the frame, these are number 14 screws. Okay we will take these two wires, one wire will go to the splices that we had before, doesnt matter which one in this case. Lets go ahead and cut it to length, and we will use a butt connector as a junction for the three wires. Pair those two together, and put a butt connector in place.

We will go do the other wire and make our splice there. Okay connections are made, now lets go ahead and use some electrical tape to seal them up. Our cable comes with a cable looped in, a good idea to connect this to your vehicle, we got a quick link, we will be using a 3/8 one right here. It is over kill but we may need that to get over steel, and there are different style hitches with different style tow loops and thicknesses, so best to go large and work with that. Alright and there you have it for the replacement of our break a way switch on this old horse trailer..


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

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Perfect 515095



- 420000

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Shipped out quick 391483



- 420000

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



- 420000

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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

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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

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All items exceeded my expectations 264726



- 420000

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Great deal 261053



- 420000

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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

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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

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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

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



- 420000

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Great service great products 216191



- 420000

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Great service! 205762



- 420000

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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?


  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • Troubleshooting Trailer Electric Brakes and Breakaway Kit Installation
  • If you just put new brake assemblies on your dump trailer, the brake magnets have two wires and it doesn't matter which one gets the brake controller output voltage and which one is grounded to your trailer. You do want to make sure the one grounded to your trailer has a bare metal to metal connection free of rust, corrosion, or debris. If you have also added a breakaway system like the Replacement Tekonsha Trailer Breakaway Switch # 420000 you asked from, then you will want to install...
    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...


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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

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