Pensacola · 13 hours ago
Easy people to deal with and friendly. Will do business again with them.
Dominate the road with the ultimate train horn and onboard air system. If you are looking for the loudest train horn for your truck alongside an onboard air system that delivers extreme power and unmatched reliability, this setup is built for you. This system is not for the timid, it is engineered specifically for drivers who want to command attention, turn heads, and run the most powerful train horn kit on the road. This direct-fit, 100 percent bolt-on train horn and onboard air system is engineered for maximum performance with zero hassle, requiring no drilling and no fabricating for pure, unapologetic power.At the heart of this system is an exclusive 100 percent duty-cycle waterproof air compressor, paired with a high-capacity, anti-corrosion-coated air tank built for long-term durability. When you hit the switch, the XCR 2.0 black-coated Demon stainless steel train horns unleash a blast so loud and aggressive it rivals a real locomotive, making it one of the loudest train horn kits for trucks on the market.True direct-fit installation means every component mounts cleanly under your truck using precision-engineered, powder-coated brackets that bolt directly to factory locations. This guarantees no drilling, no guesswork, no cutting, and an OEM-clean fitment for a stealthy, rock-solid installation that hits like a freight train.Built for long-term performance, every hose, fitting, and accessory is designed for long-term punishment and minimal maintenance. This complete kit includes a heavy-duty air hose, quick-connect fittings, a glow-in-the-dark inflator gauge, and all wiring and hardware needed for installation. For those who want even more power, you can add the BlastMaster Upgrade Kit (Model 6890) for a 30 to 40 percent increase in volume. This upgrade gives each horn its own dedicated heavy-duty brass solenoid and half-inch airline for maximum airflow and maximum output, making your setup one of the loudest aftermarket train horns available.
Kleinn Bolt-on Steel Train Horn & Onboard Air Kit - 2020-2026 2500, 3500 Silverado, Sierra (Running boards that use 4 mounting locations on frame rail require removal of 1 support)
| Brand | Kleinn Automotive Accessories |
|---|---|
| Part Number | GMHD20-734 |
| Airline Size | 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 |
| Model 1302 | Quick connect relocation kit - place air source wherever you wish |
| Model 6353RT | 3-Gallon Air Tank with Cortec Interior Anti-Corrosion Coating |
| Model 6450RC | Heavy-Duty 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 | (1) Heavy-Duty Brass Air Solenoid (12-Volt) - 3/8" inlet/outlet |
| Mounting | Custom Powder Coated Steel Mounting Brackets, Made in the USA! |
| Mounting Location | Mounting - Horns:(2) Inside cavity of bedside steps, (1) between fuel tank and exhaust system. Tank: Mid driver side frame rail. Compressor:Mid Passenger side frame rail |
| Upgrades Available | Ultra BlastMaster Upgrade kit 6890, Model 333 Sniper Remote Control kit, HCL-3 Horn Covers |
| Weight | 62 lbs |
| Year(s) | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2020-2026 | Chevrolet | Silverado 2500 HD | BASE | Running boards w/ 4 mounts require removal of 1 mount)\; Mounting Horns:(2) Inside cavity of bedside steps, (1) between fuel tank and exhaust system. Tank: Mid driver side frame rail. Compressor:Mid Passenger side frame rail |
| 2024, 2026 | Chevrolet | Silverado 3500 HD | BASE | Mounting Horns:(2) Inside cavity of bedside steps, (1) between fuel tank and exhaust system. Tank: Mid driver side frame rail. Compressor:Mid Passenger side frame rail; Running boards w/ 4 mounts require removal of 1 mount)\ |
| 2020-2026 | GMC | Sierra 2500 HD | BASE | Running boards w/ 4 mounts require removal of 1 mount)\; Mounting Horns:(2) Inside cavity of bedside steps, (1) between fuel tank and exhaust system. Tank: Mid driver side frame rail. Compressor:Mid Passenger side frame rail |
| 2020-2026 | GMC | Sierra 3500 HD | BASE | Running boards w/ 4 mounts require removal of 1 mount)\; Mounting Horns:(2) Inside cavity of bedside steps, (1) between fuel tank and exhaust system. Tank: Mid driver side frame rail. Compressor:Mid Passenger side frame rail |
| 2020-2023, 2025 | Chevrolet | Silverado 3500 HD | BASE | Running boards w/ 4 mounts require removal of 1 mount)\; Mounting Horns:(2) Inside cavity of bedside steps, (1) between fuel tank and exhaust system. Tank: Mid driver side frame rail. Compressor:Mid Passenger side frame rail |
GM Truck Kits
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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.
