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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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Tekonsha Accessories and Parts - 420000

  • Trailer Breakaway Kit
  • Switch
  • Tekonsha


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   (45 Customer Reviews)


- 420000
by:

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



- 420000
by:

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



- 420000
by:

exact fit !!



- 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.



- 420000
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!



- 420000
by:

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



- 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.


Comments
No problems. Unit is holding up well and dont foresee any problems.
Ken R - 08/28/2016



- 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.



- 420000
by:

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



- 420000
by:

Thank you for the good quality and fast delivery



- 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.



- 420000
by:

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



- 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



- 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.



- 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.



- 420000
by:

Easy to install and wire. Great product!



- 420000
by:

Great replacement breakaway switch.



- 420000
by:

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



- 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.



- 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.



- 420000
by:

Happy with service and all the parts I buy..



- 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!



- 420000
by:

Shipped out quick



- 420000
by:

Works Great



- 420000
by:

Everything arrived that was ordered in a timely manner.


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Ask the Experts about this Tekonsha Accessories and Parts



  • Replacement Breakaway Switch and Extra Pin for Trailer Brakes
    We don't have the Esco brand, so I recommend simply replacing the entire pin and housing since these are standard wire circuits. I recommend the Replacement Tekonsha Trailer Breakaway Switch # 420000 and the Replacement Cable and Nylon Pin Assembly # 2010-A.
    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...
  • 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...
  • 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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  • 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...
  • 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...
  • 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...
  • 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...
  • 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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  • 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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  • Installation Instructions for the Tekonsha Breakaway Kit with Charger # 20020
    Check out the link I attached that has the installation instructions for the Tekonsha Breakaway Kit with Charger # 20020 that you referenced. Scroll down to the section on wiring a Tekonsha breakaway kit to see what it would take to install this kit on your trailer.
    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...
  • 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...
    Image 1 for
  • 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...
  • How Does the Universal-Design Rocker Switch Wire to Circuits
    On the part # PK34312 that you referenced the two pins in the middle that are perpendicular to the ground are the ground circuits for each side of the switch. Now the power for each corner of the switch is at the terminal that is directly behind the push button. So the terminals in the four corners are the power wires for each circuit. Basically this can control the power for up to 4 circuits and you would need to wire them up to the switch accordingly.
    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 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...
  • Is a Circuit Breaker Required When Installing Trailer Breakaway Switch?
    When installing a breakaway system and the Replacement Tekonsha Trailer Breakaway Switch # 420000 you asked about, there is no need to add a circuit breaker or in-line fuse. I've attached a help article for the installation of a system as well as a video of an installation to assist.
    view full answer...
  • Solution for Missing Trailer Breakaway Switch Plunger
    I wasn't able to track down any information on the particular Bargman breakaway switch that you have so your best option is going to be to simply replace the switch assembly. Cables and pins/plungers are pretty specific to the models they are deigned to fit but the switches are typically universal across the board. This means you can simply replace your switch with the Tekonsha # 420000, which will include the cable, switch, and plunger/pin.
    view full answer...
    Image 1 for
  • 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...
  • 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...
  • 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...
    Image 1 for
  • Troubleshooting Breakaway Switch To See If it is Reason System Isn't Working
    If you cut the wiring of the switch and bypassed it like you mentioned and could hear the brakes hum that would mean that the switch is the issue that's preventing the system from working properly. Based on what you mentioned already it does sound like this is the most likely cause. In that case a replacement switch like the part # 420000 would be what you'd need.
    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...
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