Product Description

When a truck owner demands a powerful sound, the Cannon Ball Express is the horn and gives any truck a true train horn sound. All three trumpets are constructed of all metal with brass triple chrome plating and a painted metal base. The Cannon Ball Express requires an on-board air system with a minimum of 3 gallon storage tank (such as the Wolo on-board air system Model 840). Built with heavy-duty 12 volt electric solenoid. The kit comes with all mounting hardware and 10 feet of 1/4” Nylon high-pressure hose.

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Product Details

• Amazon Sales Rank: #109950 in Automotive
• Brand: Wolo
• Model: 837
• Released on: 2005-10-04
• Dimensions: 2.00 pounds

Features

• This is the horn if you demand a powerful true train horn sound
• All three trumpets are constructed of all metal with brass triple chrome plating
• Heavy-duty 12-volt electric solenoid
• Kit comes with all mounting hardware and 10 feet of 1/4" Nylon high-pressure hose
• Requires an on-board air system with a minimum of 3 gallon storage tank

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Customer Reviews

Most helpful customer reviews

4 of 4 people found the following review helpful.
Best Horn EVER!
By Andy
OK I have a big truck, and don't want a wimpy horn...Who doesn't? About three years ago I bought a cheap set of WOLOs with a two plastic air horn set up and a small on demand compressor, and they sounded ok...for a while. Living in Alaska, where we are subjected to lots of crazy weather, the ole plastic horns deterioated and sounded worse than stock. Thats when I decided to "Go BIG or Go Home!" I purchased the cannonball express and the only complaint i have is they are so big i t took forever to find a place for them. I finally mounted them inside my bumper where it has a mount for a winch. These horns are HUGE! you need a spot approximaly 1ft wide x 1ft high x 1.5ft long to get them mounted in. Is it worth it? OH YEAH! These things will make an unsuspecting person wet themselves!!! AWESOME!

3 of 3 people found the following review helpful.
Extremely Loud Horn
By scott
This thing is great. Ive had it on my truck for three yrs. and its a BLAST. Literally. I got the air tank and the air pump for it. I mounted it in the best place I could think of. I took the spare tire off and mounted it under the truck. facing forward and have not had any problems with it. I have a lifted truck so the spare wouldnt of done me any good anyway, because I also have oversized off road tires. nobody even knows I have it. So if you dont want anyone to know you have this giant horn. I would recommend you mount it under the truck where your spare time is. It makes everyone jump. I love it.

1 of 1 people found the following review helpful.
Nice Construction, but not as loud as others.
By Thomas E Ridgaway
I have owned these horns for a couple months now and would NOT recommend these horns.

I have been buying and using air train horns on my trucks for over 20 years. Wolo has some fairly good products overall for being Chinese built. I bought this horn to replace another dual air horn and I thought it would be loud. It isn't.

I have a very nice Airraid 200PSI 12v compressor and big tank to push my horns and suspension air bags. I have a 150psi regulator for the horns. My 11 year old shorter, smaller duals are louder than this triple unit. It came with a 1/4" air valve, which broke and leaked within one week. I contacted Wolo and they sent a new one right away. At first, I thought the low output volume was due to the bad valve, but the new one did not increase the airflow nor the loudness of the horns. I think the valves and manifolds into the horns need to be 1/2" to increase the air volume into the horns to increase the loudness. I can't fix that. Since I have had these on my truck a while, I can't return them so I am going to have to sell them on eBay or Craigslist- dangit.

Do your homework and go with a something different.