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Hella Twin Supertone Horn Kit

ExtremeTerrain no longer carries the Hella Twin Supertone Horn Kit. Please check out Jeep Air Compressors & Onboard Air Systems for an updated selection.

Features, Video & Details

  • Supertone Horn Kit
  • Features a Red Protective Grille
  • Durable Metal Construction
  • 12V, 66W
  • Delivers a Loud, Strong, Penetrating Sound
  • Features a Solid Galvanized-Steel Construction
  • Includes a 300-Hertz Low-Tone Horn, a 500-Hertz High-Tone Horn, Relay and Mounting Brackets
  • Designed for 1987-2018 Jeep Wrangler YJ, TJ, JK & JL Models

Review & Installation Video

Review & Install Video

This Hella Twin Supertone Horn Kit is for those of you that have a 1987 and up Wrangler and are looking to change up the way that your Jeep sounds but we're not talking about exhaust. Right out of the factory your Jeep has a horn that sounds maybe a little bit weak sometimes and especially if you have a big, lifted Jeep that looks really mean, you want it to sound mean when you hit the horn and that factory horn just isn't gonna do it. So, this setup here is going to be a bi-tone horn, it's gonna give you a really rounded sound, it's going to be a very loud sound, and it's going to match the personality that your Jeep has a lot better than that factory horn does. This is going to be a kit that's gonna be pretty easy to install, although it is going to require a little bit of wiring. These horns are going to draw a little bit more power than that factory horn does, so you are going to wanna wire in the relay that comes with this kit, so I'm gonna give it a two outta three wrenches. But overall if you are looking to change up the voice of your Jeep, this is going to be a great way to do that. As far as the construction goes, these are a very well-built horn. These are going to be metal construction, they have these red metal grates overtop of them to keep them protected, they have a mounting bracket that comes attached right on them. Right here you have your two tabs, that's where you're going to attach your wires. And you do have two horns, this is the twin supertone kit, because this has a 300 hertz and a 500 hertz horn, so that's how you're going to get that very well-rounded sound. One's a little higher, one's a little bit lower and they just work really, really well together. Now over here what you have is the relay. And like I said before, these draw a little bit more power than that factory horn. So in order to get the most out of the horn, and also to make sure that you're not going to blow any sort of fuse, you are going to wanna power these through that relay, so you're gonna have to get the relay power directly from your battery. You are gonna wanna fuse that, then you're going to pick up your trigger from your factory horn and then have the relay power the horns from the battery, that's going to give you the full amount of power that you need to get these things as loud as they can be and also like I said before, not to blow any fuses or cause any other electrical issues on your Jeep. So like I said before, I'm gonna give this install a two outta three wrenches, probably around an hour's time to get this installed, maybe a little bit more. There is going to be a good bit of wiring involved in getting this set up, so if you're uncomfortable with that, if you don't wanna tackle it, it's okay to take your Jeep to a shop and have these installed by someone else. But if you are somebody who's into automotive wiring, if you wanna figure this out and you wanna learn, this is going to be a good place to start. Now like I said before, getting the horns installed themselves is very easy, they come with a mounting bracket, you can use any number of holes, drill a new hole. Doesn't come with any hardware but go ahead and get these attached, probably right up in the front of the Jeep right behind the grille is where you're gonna wanna get these mounted. Once you have them mounted then you're gonna start with the wiring. So you're gonna use that factory trigger, that factory horn switch, to trigger your relay to power these horns. So you're going to tap into that factory circuit, get that hooked up to your relay, then you're gonna fuse power directly from your battery into your relay as well, go from the relay over to the horns and make sure everything is grounded properly. These horns come in at $65 and I think that's gonna be a really good deal for what you're getting. This is going to be a very loud setup, they're very well built, they're gonna last for a very long time. You're getting two horns so you have that bi-tone really well-rounded sound. I think if you're looking to change up your horn, going with something like this is going to give you something very high-quality, very well built, gonna last a long time and also give you the sound you're after for a very fair price. So if you're looking for a louder horn to match the look of your Jeep, I definitely recommend taking a look at this kit from Hella, and you can find it right here at

Superior Sound. The Hella twin supertone horn kit is designed to deliver a loud, strong, penetrating sound of 118-decibel that warns passersby and other vehicles of your presence.  Two tones at 300 & 500 Hz provide a penetrating sound that leaves your weak factory beep in the dust.

Durable Construction. The horns in this kit feature a solid galvanized-steel construction and have red protective grille that offer a rugged appeal.  Included mounting brackets allow for easy installation directly behind your grille for an aggressive look that can withstand the elements.

Includes. The Hella Twin Supertone Horn Kit includes a 300-hertz low-tone horn and a 500-hertz high-tone horn. The kit also includes relay and mounting brackets needed for installation.

Application. The Hella twin supertone horn kit is designed for 1987-2018 Jeep Wrangler YJ, TJ, JK and JL models.

MPN# 3399801

CA Residents: WARNING: Cancer and Reproductive Harm -

What's in the Box
  • (1) High tone unit
  • (1) Low tone unit
  • (1) Relay
  • Mounting brackets
Installation Info
Tech Specs
  • Voltage: 12V
  • Power Consumption: 66 W
  • Low tone frequency: 300Hz
  • High tone frequency: 500 Hz
  • Sound @ 2 meters (approx. 6.5 Ft): 118 dB

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      Questions & Answers (3)

      3 Top Rated Questions

      Can these take the place of the oem horn? As in plug and play to the oem wiring

      • The Hella Twin Supertone Horn Kit can replace the OEM horns, but you would need to cut the connectors from the OEM wiring and install ring terminals in order to mount to the new horns.

      Helpful (0)

      How well do these hold up with water fording and some mud?

      • The Hella Twin Supertone Horn Kit can handle rain/moisture as well as mud, however these should not be fully submerged as this can cause early failure.

      Helpful (0)

      I am not good with installs Inhave a 2014jk do I need the shop to install or do the wires just plug in to new horns.

      • Hello. If you know you are not great with installs, maybe you would want to have it installed for you. However, we have this listed as a simple install for anyone.

      Helpful (0)
      Post Your Question

        Customer Reviews (16) Write a Review

        Overall Rating 3.6

        out of 5 stars

        • Fit 4 4
        • Bang For Your Buck 3.625 3.6

        • 5/5

          July 12, 2018

          All install

          Only thing to say is that you need to know at least the basics of electrical to install these horns, my jeep originally only has one horn so I had to split the wires I was given into two on each so I had 4 wires, 2 for each horn. Plus a little imagination while mounting, the sound is just amazing though, big improvement!


          Year: 2007Submodel: Wrangler

          Helpful (8)

        • 5/5

          June 25, 2018

          Beep Beep!

          Very good value. Horns sound great and do get attention when you need it. Installation was easy and instructions were clear. I would purchase them again if I needed more.


          Year: 1999Submodel: Wrangler

          Helpful (7)

        • 4/5

          April 25, 2018

          Great sound

          Easy install, a little bit of wiring experience is needed. Works great!


          Year: 2008Submodel: Wrangler

          Helpful (8)

        • 1/5

          November 26, 2017

          stay away

          not loud at all!!! very displeased!!! Had these professionally installed and are no louder than stock horns!!!


          Year: 2004Submodel: Wrangler

          Helpful (9)

        • 1/5

          November 12, 2017

          Hella Twin

          Sounds like my wife's horn on her Sanata. Not impressed at all...


          Year: 2015Submodel: Wrangler

          Helpful (8)

        • 4/5

          November 09, 2017

          Reasonable install, loud results.

          Good and loud for not being an airhorn. Several times louder than the factory stuff. Easyish to install. Did not require any additional wiring and fit with some finagling in the same spots the originals did.


          Year: 2014Submodel: Wrangler

          Helpful (9)

        • 5/5

          October 23, 2017

          Great upgrade / better than stock replacement

          easy to install, louder than factory. easy to mount using the factory mounting brackets.


          Year: 1997Submodel: Wrangler

          Helpful (8)

        • 1/5

          October 03, 2017

          Hella NO

          Very disappointed in the sound. Not loud at all. SOUNDED LIKE A SQUIRL GOT RUN OVER.


          Year: 2011Submodel: Wrangler

          Helpful (9)

        • 5/5

          August 10, 2017

          Much better than stock

          They aren't air horns but the keep you from being run off the road


          Year: 2007Submodel: Wrangler

          Helpful (9)

        • 4/5

          June 08, 2017


          Nice n loud under the bumper not behind the grill...even painted the gloss black...people jump when I hit them with it


          Year: 2010Submodel: Wrangler

          Helpful (10)

        • 4/5

          August 27, 2015

          09 rubicon

          Its a nice set, other drivers will hear them when you blast them.


          Year: 2009Grenora, ND, USA

          Helpful (9)

        • 2/5

          August 27, 2015

          A better horn

          Good sound. Challenging fit ( had modify and make my brackets ). Had to do additional wiring.


          Year: 2010Atlanta, GA, USA

          Helpful (10)

        • 4/5

          August 24, 2015

          'Blows' away stock. :)

          Very happy with purchase. Tone is kinda weird but very loud and far better than stock horns. The mounted back to back on original mount under the hood in about 30 mins, but visually are well suited for mounting inside grill or even on bumper or bull bar if you want to be different. :). Would easily recommend.


          Year: 2002Smithtown NY

          Helpful (11)

        • 4/5

          June 17, 2015

          Hella Horns

          These supertone horns are very loud! Much better then the OEM single horn. The horns are of high quality and construction and are very tuff looking, a great fit for what I was looking for. It took a few hours to mount them because they are larger then the OEM horn. I mounted them behind my front grill so to get the best audible sound from the horns as I could, once the horns where mounted the wire was a breeze with the easy to follow instructions. I'm very impressed and happy with the Hella Twin Supertone Horn Kit and with the way they look on my JK,


          Year: 2011Cedar City, UT, USA

          Helpful (8)

        • 3/5

          January 17, 2015

          They are ok..

          The horns aren't that bad, but they are much too high for my taste. When you really lay on it it sounds good. When you hit the lock button on my jk it sounds extremely high pitched, I think it doesn't have enough time to get the full sound out, I had to disable the sound when I hit the lock. Overall it's an ok horn but I would go with a different one.


          Year: 2013FL

          Helpful (8)

        • 5/5

          November 09, 2014

          replacement horn

          Did it job got rid of the stock little horn and installed these right behind the grill extremely loud


          Year: 2009

          Helpful (10)

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