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Tekonsha Shur-Set III Trailer Breakaway Kit with Built-In Battery Charger - Top Load - Clamp On

Tekonsha Shur-Set III Trailer Breakaway Kit with Built-In Battery Charger - Top Load - Clamp On

Item # 2028

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Trailer Breakaway Kit

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Trailer Breakaway Kit 2028 - Side-Load - Tekonsha
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  • Kit with Charger
  • Tekonsha
  • Side-Load
Breakaway system is designed to bring your trailer safely to a stop by activating its electric brakes should it become disconnected while being towed. Built-in charger refuels the included rechargeable battery. Lowest Prices for the best trailer breakaway kit from Tekonsha. Tekonsha Shur-Set III Trailer Breakaway Kit with Built-In Battery Charger - Top Load - Clamp On part number 2028 can be ordered online at or call 800-298-8924 for expert service.

  • All Info
  • Reviews (10)
  • Q & A (14)
  • Videos (1)
  • Photos
  • Why etrailer?

Tekonsha Trailer Breakaway Kit - 2028

Breakaway system is designed to bring your trailer safely to a stop by activating its electric brakes should it become disconnected while being towed. Built-in charger refuels the included rechargeable battery.


  • Breakaway system activates your trailer's electric brakes if the trailer disconnects from the tow vehicle
  • Built-in charger automatically refuels the battery
  • Top-loading case is easy to access from above
    • Polymer construction protects battery from moisture and debris
  • Built-in mounting bracket offers simple installation - no drilling required
    • Clamps onto your trailer frame or around your jack post
  • Lockable lid deters theft (padlock sold separately)
  • Breakaway switch installs on your trailer's frame - drilling is required
  • Department of Transportation (DOT) compliant
  • 12-Volt rechargeable battery is included


  • Application: single-, tandem-, triple-, and quad-axle trailers with electric brakes
  • Case dimensions: 6" long x 3-1/2" wide x 5" tall
  • Mounting hole spacing: 2-1/4" from center of hole to center of hole
  • Clamp hole diameter: 2-1/2"
  • Battery capacity: 5 amp-hours
  • Breakaway switch length: 7-1/2"
  • 1-Year limited warranty

Note: A breakaway system is required by law in most states for trailers that are equipped with electric brakes and have a GTW of at least 3,000 lbs.

2028 Tekonsha Shur-Set III Trailer Breakaway Kit with Charger- Top Load - Clamp On - 5 amp/hrs

California residents: click here

Video of Tekonsha Shur-Set III Trailer Breakaway Kit with Built-In Battery Charger - Top Load - Clamp On

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

Video Transcript for Tekonsha Trailer Breakaway Kit - Kit with Charger - 2028 Review

Today we're going to be taking a look at the Tekonsha Breakaway Kit with the included charger. This breakaway kit is designed for use on single, tadem, and tri-axle breakaway applications. It's a quick and easy installation. The unit's constructed to perform well in all weather conditions so it features a weather and corrosion resistant design and the kit meets or exceeds Department of Transportation specifications for trailer breakaway and holding requirements. It's going to come with your breakaway battery, it's already inside the case, so it comes with the breakaway battery and it's going to come with the charger for the breakaway battery. The battery is a 12 volt sealed rechargeable five amp battery, and this right here is a DC to DC triple charger that fits securely into the breakaway battery case. It's going to provide continuous recharge, it features an automatic shutoff that will not permit the battery to overcharge.

Two of the wires connect directly to the terminals here on the breakaway battery, the other two wires connect to the main power supply, and that's how the unit recharges the breakaway battery. Inside the case here fits the breakaway battery in the larger compartment and on the side area is where the charger would fit into. Simply pushes down in there and then right here on the backside you have a small cutout that allows the wires to feed out of the case that way you can still completely close the lid and not pinch the wires. The kit also comes with a durable polymer case that holds the battery and the charger. It's going to come with the clamp-on mounting bracket. This bracket can mount to the frame of the trailer, it does come with the hardware to get that unit clamped on and it's also got a hole right here so that way it could also mount to the trailer jack post.

This hole is going to have a diameter of about 2-1/2". It's also going to feature the breakaway kit, this is included as well, this unit mounts to the trailer frame, hardware to get that mounted is not included. It's got a single hole design for mounting. One wire here, one black wire's going to connect to the power supply, the other wire connects into the trailer break wire, and then the cable on this side is connected to the pin, the other end of the cable attaches to the tow vehicle. Any event where the tow vehicle and trailer disconnect and the safety chains fail, the tow vehicle will pull the cable which will pull the pin, which will then engage or activate the trailer's brakes bringing the trailer to a safe stop to prevent a full runaway situation. The case, a few measurements real quick.

Edge to edge going this direction is about 6". Just measuring the case right here, going depth is about 3-1/2" deep and then the height is going to be around 5" tall. That's going to do it for today's look at the Tekonsha Breakaway Kit with the included charger.

Customer Reviews

Tekonsha Shur-Set III Trailer Breakaway Kit with Built-In Battery Charger - Top Load - Clamp On - 2028

Average Customer Rating:  4.7 out of 5 stars   (10 Customer Reviews)

Breakaway system is designed to bring your trailer safely to a stop by activating its electric brakes should it become disconnected while being towed. Built-in charger refuels the included rechargeable battery.

- 2028

Haven’t had time to install the trailer breakaway switch yet , just received it late this afternoon. 462244

- 2028

The product is what I need for my mullins style trailer. Hopefully it never comes loose from my car. Thank you 641075

- 2028

Everything I ordered worked perfectly. When I need to service another trailer I will definitely be looking you up 529395

- 2028

Excellent delivery time and communication. The break away kit was as described. The installation instructions were a little confusing but I eventually figured it out. Works great. Also got LED clearance lights and I was impressed as to how much brighter they were than the regular lights with a bulb. 507890

- 2028

George, Everything arrived on time and exactly what I ordered. etrailer again has not let me down. The best price's for the best trailer items. Thank's Again. 495226

- 2028

Great kit at a great price. 488453

- 2028

I am a long time etrailer customer and will continue to be. etrailer always has what I need, prices are competitive, and shipping is always fast. The tekonsha trailer breakaway kit was exactly as depicted on the web site and exactly what I needed. etrailer's instructions and videos on the web site always a welcome feature and very complete and helpful 399873

- 2028

Everything was as sold. Parts still going strong. Etrailer was a good company to do business with. 387334

- 2028

Really nice kit, will order again for other trailers 256856

- 2028

Easy to install and operate. Just follow the instructions. Get a wiring junction box to simplify wire hookups. 31908


Ask the Experts about this Tekonsha Trailer Breakaway Kit
Do you have a question about this Trailer Breakaway Kit?

  • Comparing Tekonsha Trailer Breakaway Systems
  • Tekonsha breakaway kit # 50-85-313 is an all-in-one type of set up in which the charger is integrated into the lid of the battery box. Kits # 2028 and # 20020 both have a separate external charger that is, to put it bluntly, better than the one integrated into the lid of the other kit. They are all good options though and I am certain you would be happy with any of the 3. I have included links to videos for all 3 kits for you.
    view full answer...

  • Pulling Breakaway Switch Pin Causes Battery Box to Burn and Melt and Running Lights Stay On
  • If things start to melt when you pull the breakaway pin from the switch then that indicates a bad short that we have to track down. It also sounds like somehow the trailer running light circuit is being tied into the brake and breakaway system wiring which it should not be; or that there was additional damage in the trailer side connector causing a short between the running light circuit and another circuit. A breakaway system has to be wired up a certain way. I have included a diagram...
    view full answer...

  • Trailer Breakaway System Recommendation for a Tri-Axle Trailer
  • If all 3 of the trailer axles have brakes you will need one with enough amperage to be able to apply the trailer brakes on full for at least 15 minutes. The Tekonsha system, # 50-85-313 will work with 1 to 3 axles. I have included a link to a video review for you. Another option is # 2028. I have also included a link to an FAQ article on installing a breakaway kit.
    view full answer...

  • Do Tekonsha Breakaway Kit with Charger, # 20020 and # 2028 Come with the Same Charger
  • Both the Tekonsha Breakaway Kit with Charger, # 20020, and the Tekonsha Breakaway Kit with Charger, Clamp On, # 2028, come with the same charger. The only difference is how each system mounts to the trailer. Break away batteries require a special charger because they are smaller than a regular 12 volt battery. Trying to charge it just through the 12 volt circuit from a trailer connector can overcharge the battery. The charger prevents that from happening after the battery has been charged...
    view full answer...

  • Trailer Break Away Kit Installation
  • The Brake Controller itself is connected to the battery in the tow vehicle. The breakaway system battery is good for a month or two of inactivity before needing charging. The Break Away kit you looked at, the Tekonsha part # 2028 includes a charger that will keep the battery maintained during towing. The charger is supplied power by the 12-volt power circuit from the 7-way trailer connector. I will provide instructions that include a wiring diagram. You can see the instructions by...
    view full answer...

  • Comparing the Curt, Tekonsha, and Hopkins Breakaway Batteries
  • Can you please provide me with the exact part numbers that your are referring to?
    view full answer...

  • Do Trailer Breakaway Kits Use Separate Batteries
  • The breakaway batteries on campers are dedicated batteries separate from any other trailer batteries like what comes with the Tekonsha kit part # 2028. For more info on breakaway kits check out the FAQ article I attached on them.
    view full answer...

  • Adding Electric Trailer brakes to 3500 lb Lippert Axle on Aluma Edge Trailer
  • We have everything that you will need to add electric brakes to your trailer that has a 3,500 lbs axle. It doesn't come in a complete kit but I will list the parts that you will need. A Brake Mounting Flange # 4-35 will need to be welded onto the spindle so that the brake assembly can be installed on the axle. The next step would be to install the brake assemblies. The Electric Trailer Brake Kit # AKEBRK-35-SA will work with 3,500 lbs axles and measures 10"x 2-1/4". These assemblies...
    view full answer...

  • Troubleshooting a Trailer Breakaway Kit that Drains the Battery When White is Connected
  • The white wire is the ground wire of the breakaway kits like part # 2028 that you referenced. When it is connected it is completing the circuit for the battery to the trailer wiring. The problem you are having would indicate that there is a circuit on your trailer wiring's 12 volt circuit that is drawing amperage from the battery. This shouldn't be happening unless your battery is run straight to the breakaway battery and not through the charger. I would recommend you check the wiring...
    view full answer...

  • Why Can't Trailer Breakaway Kit Use Main Trailer Battery
  • You'll want to use a breakaway battery kit. Reason being the smaller battery of the breakaway kits like the # 2028 are small enough that they can be kept at a full charge from the trailer wiring 12 volt power circuit and nothing else will be drawing off of it. Since the other battery of your trailer would be too large to be kept charged and will have other accessories draining it occasionally it just wouldn't be a good idea.
    view full answer...

  • Why Would Trailer Interior Lights Not Work with Breakaway System Installed
  • Sounds like you have the 12 volt power circuit of your trailer either running to only your breakaway battery or only the trailer lights. Most likely the issue is the connection that you are making from the battery to the 12 volt system. Make sure that the connection is solid and allows both circuits to be active.
    view full answer...

  • Right Brake Light Does Not Work After Breakaway Switch Installation
  • That is odd that your right rear brake light does not work if they spliced the break away switch battery into your running light circuit. The brake lights and running lights typically run on two different circuits so it should not have been affected. I would recommend checking each of the connection points for possible cuts or frays to other wires nearby. It is possible that they may have accidentally cut or damaged a brake light wire creating a short that would cause your brake light to...
    view full answer...

  • How to Add Electric Drum Brakes to a Top Hat Econo Angle Utility Trailer
  • In order to install electric drum brakes on your Top Hat Econo Angle Utility Trailer you will need braking assemblies, hub/drums, a breakaway kit, and trailer wiring. For the braking assemblies, I recommend using the Dexter Nev-R-Adjust Electric Trailer Brake Kit part # 23-468-469 because they are self-adjusting which means you don't need to make continual adjustments for even pad wear. For the hubs/drums, I recommend using the Dexter Trailer Hub and Drum Assembly part # 84546UC3 because...
    view full answer...

  • Compatibility of Breakaway Kit 2028 With Electric Over Hydraulic Disc Brake Actuator
  • The Tekonsha Shur-Set III Trailer Breakaway Kit with Built-In Battery Charger # 2028 will absolutely work with two Dexter 12k Axles with electric over hydraulic disc brakes. The EOH brake actuator is the key to the braking, so the 12V battery will send that signal to the EOH and give the proper pressure to your disc brake calipers. This battery is rated for 5 hours. I've attached an article to assist as well as a schematic of the wiring to assist.
    view full answer...

Do you have a question about this Trailer Breakaway Kit?

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Info for this part was:

Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
John H
Updated by:
Laura H
Installed by:
Cole B
Updated by:
Alexander C
Photos by:
Jeffrey L
Updated by:
Brian T

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