Easy people to deal with and friendly. Will do business again with them.
Dominate the road with the Kleinn FSD23-734 Demon train horn and onboard air system, custom engineered specifically for a 100 percent direct bolt-on installation on 2023 to 2026 Ford F-250 and F-350 Super Duty trucks. Utilizing chassis-specific, USA-made powder-coated steel mounting brackets that attach directly to factory holes, this high-performance kit completely retains your factory spare tire while requiring absolutely no drilling, cutting, or welding. The system features the legendary, triple-trumpet Model 730 spun steel black-finish Demon train horns, unleashing a spine-tingling 157.9 decibels of earth-shaking blast. Powering this setup is an industry-exclusive, 150 PSI 100 percent duty cycle Model 6450RC waterproof high-output air compressor paired with a heavy-duty 3-gallon air tank, creating a versatile onboard air station capable of inflating up to 37-inch tires, powering air tools, or supplying air suspension setups. Every premium component, high-pressure line, and wire harness is precision-engineered for a factory-clean, stealthy under-truck setup, backed by a comprehensive warranty to ensure the ultimate balance of original equipment manufacturer style mounting and high-output performance.
Kleinn FSD23-734 Demon™ Bolt-on Steel Train Horn & Onboard Air for 2023–2026 Ford F-250 / F-350 Super Duty Trucks
| Brand | Kleinn Automotive Accessories |
|---|---|
| Part Number | FSD23-734 |
| Airline Length - Size | 12 Feet of 1/2" High-Pressure Airline |
| Horn Lengths | Each Horn Measurement: 21.75” Lg. – 17.75” Med. - 13.5” Sm. |
| Horn Material | Stainless-Steel Trumpets with Zinc-Alloy Metal Base |
| Installation guide | https://kleinnretail.s3.amazonaws.com/pdfs/KL%20FSD23-734.pdf |
| Model 1302 | Quick connect relocation kit - place air source wherever you wish |
| Model 6351RT | 3-Gallon Air Tank with Cortec Interior Anti-Corrosion Coating |
| Model 6450RC | Waterproof Air Compressor - 200 PSI - 100% Duty-Cycle |
| Model 730 | Demon Black Stainless Steel Triple Train Horn - Produces a thundering 157.8 dB Blast |
| Model INF-1 | Tire Inflation Kit- 24' Heavy-Duty Hose w/ Quick-connect couplers - Glow Face Gauge Inflator |
| Model VX-6003 | Heavy-Duty Brass Air Solenoid (12-Volt) - 3/8" inlet/outlet |
| Mounting | Custom Powder Coated Steel Mounting Brackets, Made in the USA! |
| Upgrades Available | Ultra BlastMaster Upgrade kit 6890, Model 333 Sniper Remote Control kit, HCL-3 Horn Covers |
| Weight | 77 lbs |
| Year(s) | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2023-2026 | Ford | F-250 Super Duty | BASE | Horn Brackets Interfere w/ Tremor, Plow, Winch, Aftermarket Bumper, PTO; Location - Horns: Behind Front Bumper. Tank: Along Crossmember in Front of the Spare Tire. Compressor: Rear Passenger Side Inner Frame Rail; Horn Brackets do not bolt up on F-450 with 6.7 High Output |
| 2023-2026 | Ford | F-350 Super Duty | BASE | Horn Brackets Interfere w/ Tremor, Plow, Winch, Aftermarket Bumper, PTO; Location - Horns: Behind Front Bumper. Tank: Along Crossmember in Front of the Spare Tire. Compressor: Rear Passenger Side Inner Frame Rail; Horn Brackets do not bolt up on F-450 with 6.7 High Output |
| 2023-2025 | Ford | F-450 Super Duty | BASE | Horn Brackets Interfere w/ 6.7 HO, Tremor, Plow, Winch, Aftermarket Bumper, PTO; Location - Horns: Behind Front Bumper. Tank: Along Crossmember in Front of the Spare Tire. Compressor: Rear Passenger Side Inner Frame Rail; Horn Brackets do not bolt up on F-450 with 6.7 High Output |
Every review below is a verified Google review of an H&H store — written by real customers about the people who sold, fitted and stood behind their gear.
Easy people to deal with and friendly. Will do business again with them.
The staff is friendly and helpful. They went out of their way to make sure I got a warranty part replaced. Their communication is professional and they completed the work in a timely manner and it looks wonderful! Thanks!
Bought step rails for a truck. Took less than an hour to have them installed! Great work!
Great service. Super quick install.
Love the new look
Eric was a pleasure to work with on my LEER top! Capable service guys installed my top and it looks great. Thank you!
Great experience!
My experience was great Brandon was exceptionally helpful and professional and the crew did a great job installing my tonneau cover Thanks
Tyler and his team have done a couple different jobs for me this year on two different trucks. The quality of work was outstanding.
Great service
Brian and his employees did an outstanding job!! upgrading my 2013 Ford F150 truck. His customer support,patience and fair pricing was really appreciated. I felt taken cared of & the result was excatly what I needed.
It’s great service here an good products to Choose from plus a great atmosphere.
The HH sales and install team were through the whole process of ordering, receiving and storage of my LEER topper and Decked slide out. I’m already looking at additional upgrades to my truck because of my confidence in their professionalism
Love my new bed cover! It looks amazing and will provide much needed protection for items I chose to put in the truck bed. Everyone was uber friendly! The bedliner I chose was reasonably priced and installation took less than 30 minutes. I will be spending more $$ there when I need some other truck accessories! Before and after pics of my truck bed.
The guys were thorough and detail oriented. They went to great lengths to explain the product and were Happ to any any questions.
Fast! My order was ready, and installed in less than 24hrs! (Would have been sooner but I had to wait till next day) Staff was very friendly, will definitely be back!
Luke went out his way to make sure we had enough space for the delivery for our new shed!! Thanks Luke! You're awesome!!!!!!!
I had a problem with a tonneau cover almost blowing off. I patched it as best I could and visited H & H in Muscle Shoals to see if they could fix it even though it had been installed at a different H & H store. Rusty was kind enough to fix it easily. Highly recommend this individual.
Had the pool parts we needed and a lot of other things!
Excellent service. Highly recommend!!
It was a good experience, everything went as we told, although a little delayed. The waiting room was however not comfortable and could have used a good deep cleaning and more comfortable seating. The bed liner we purchased was great but the store needs a little TLC!
Super great service No complaints at all
The men at H&M’s H were outstanding With great customer service. I will go back to the Andalusia H&H for any needs for my truck. Thank you for a great experience.
Always a pleasure dealing with the Pensacola H&H. Prices are very fair, schedules are kept, communication and status updates are great and their install team is top notch. I’ve had them perform installs on my 3rd & 4th Gen Tacomas, and now my 2026 Tundra. I could not be happier. Highly recommended!!
Reviews of H&H Truck & Outdoor stores, sourced from Google. They rate our stores and service, not this individual product.