HK 12V 150db Air Horn, 18 Inches Chrome Zinc Single Trumpet Truck Air Horn with Compressor Powerful Loud 150db for Truck Boat SUV Train (Sliver)

This is such a great horn. It's alot louder then I had expected. Gotta say this horn is a great buck for your bang and gets every idiots attention on the rd. I loved it so much I ordered a second to install on my other truck. Ide highly recommend to anyone looking for a loud horn.

1) This is a cast replica of a Semitruck horn 2) I drive a freightliner Semitruck and this is 80% as loud with the exact same tone. 3) If you use thin wires like these other goofs, you won't get full power. The little compressor draws alot of amps. Instructions: A) Connect the red wire to the + terminal of the battery with 14 guage wire. B) Connect the black wire to the - terminal of the battery with 14 guage wire. C) Connect the yellow wire to the + wire going to your horn. D) Connect the blue wire to the - wire going to your horn. E) Press the horn button and it'll blow your socks off!

Good product for the money!! Decently loud, and pretty easy to install. Put it under the hood in my 2011 Denali and it’s definitely louder than my two stock horns combine. And was able to tie into one of my existing horns so I ordered an aftermarket horn button for no reason I guess. Thinking of buying another horn for the golf cart and using the horn button on that just so it won’t go to waste..... lol. Will be buying again, thank you!

The horn was easy enough to install. Anyone who says it isn't loud enough must've already had one and injured his inner ears from blowing it too much. The thing is PLENTY loud! I put it at that angle to keep water from gettin' in there. 2 weeks before I put the horn on, I'd had the bike listed for sale. I was having second thoughts about selling it, so I hadn't re-listed it. Well, literally the day after putting the horn on, a guy who responded to my ad and I politely turned down his offer, called back and gave me an offer that was what I had told him was my bottom line. I didn't feel right turning him down, so he was here the next morning and bought the bike. Because of that I never got the chance to test my theory about no rain gettin' in front-facing bell end, and also never got the chance to use it on the street, even though I did take it for a short ride before lettin' 'er go. I blew it a couple times while out, and the last one started crapping out. Got back to the house and found the super-lightweight air hose that goes from the pump to the horn had a kink in it. It would've been an easy fix - just get some air line with some meat on it - and it would/will not keep me from buying another one for my next bike. But I had to take a star for it nonetheless. There ya go.

Bought to replace old air horn. Just hooked up to my old 12 volt compressor and it sounds great. Nice and loud and a good low tone.

Install was not difficult, but there are no directions to mount or wire it in the box. I had to look at one of the pictures on Amazon that said what each wire was for then figure out how to wire it from there. I also had to make my own bracket to mount it. I put mine on my Harley and the front support bracket broke within the first 1000 miles on the road. I replaced that broken support with a conduit clamp, a bolt, and a couple nuts from Home depot. Checked the decibels and I couldn't get more than 102 decibels out of it despite the fact it claims to get 150. This sounds plenty loud sitting in the garage, but is not as loud as expected when out on the road.

After mounting and wiring the horn the horn would not work when pressing the horn button I believe that the horn supply power was not enough to energize the relay to the horn compressor I pulled the relay out of the wiring and connected the positive side of the compressor directly to the horn supply power eliminating the relay and the horn works just fine

I got this in 2020 and it lasted a whole 1and 1/2 yrs. Not what I expected but however the compressor went out. I guess you get what you pay for. And for $7 cheaper I can order just the compressor. Do to needing a horn ASAP I will order the replacement and research a good one that will last.

Es muy buena de sonido. Perfecta para mim..

Me llego antes de lo mencionado, suena muy fuerte, no es sonido de tren, es sonido como de camión pesado, pero créeme que es lo que realmente buscas y por un excelente precio.

You have to change tubing, because so cheap quality and broken in any angle. And the compressor motor making nose as horn. I changed tubing and it helps. Also the black gaskets are garbage, just gone in first day

BUEN PRODUCTOR

Suena muy bien y cumple la función! Pero los materiales dejan mucho que desear. Por el precio que tiene no está mal