Having a loud train horn sound on your or truck or service vehicle can help warn people when you’re approaching. They’re not only a safety feature but also an aesthetic choice. Some of these bad boys can be so loud that they surpass 180 plus decibels! The sharp, ringing sound can last for many seconds after use.

Be careful when using them to warn pedestrians as, being the driver, you may be the closest person to the vehicle and might sustain some ear damage. But some truck drivers want the loudest train horns out there, and I’ve found them - the loudest of the loud, the super pipers, authentic truck train horns. If you want to get the loudest possible sound, you’ve got to get a horn that’s used on a real train. Everyone will know you’re coming with one of these monsters.

The hardest part about searching for loud truck train horns is to find the actual decibels the horns you may be interested in purchasing have clocked in at. Most companies don’t list this essential statistic on their website. The best thing to do, then, is first of all, limit your search to compressed air horns that are actually used on real trains. These will be hands down the loudest horns you can find.

Now that you’ve limited your search, the next step is to call the sellers of the horns you’re actually interested in and ask them, before you purchase, what decibels the horns have reached. That’s the only way to know for sure, short of purchasing the behemoth, installing it, and registering the noise yourself (with ear plugs on, please).

Here’s a brief, non-exhaustive list of the horns I like. There are several train horn sites, and they all sell authentic train horns for your truck, car, or service vehicle.

You can buy their AirChime K3LA and pump an astonishing 156 decibels into your neighbors ear drums. The cost will be under 1,500 bucks. Well worth it, though, for the raw power and authentic chime. It comes with a 150 PSI 5 Gallon All-Inclusive Kit. This refers to the compressed air that’s used to generate such intense noise. They also offer, for another 500 bucks, the same kit but with two additional horns. The decibels are about the same—156Db—so this is really just a stylistic choice?

A great place to find super loud truck train horns is trucktrainhorns.com. Their website is very easy to use and has some pretty cool features. Be sure to check out their videos demonstrating some of the train sounds their horns make. They give you a good idea of what you’ll be purchasing and how unique the sound is, compared with most other drivers on the road. Plus, they have some funny videos on using train horns to scare people. That is half the fun, isn’t it?

One of their prettiest horns, is the Nathan AirChime K5LA, the “godfather of all train horns.” It’ll cost you about 1,500 bucks, but from the look of her she’s worth every penny. Made from high cast aluminum, the K5 employs five “heavy duty drum bells with a high flow five-way manifold.” They boast that this set is most likely the loudest thing they’ve ever sold. They guarantee quality and durability. The company also offers air horn kits, air systems, and aftermarket horns. No matter what horn you use, you’ll be heard for miles away - perfect for a scare and safety.