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Description

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

Specifications

BrandKleinn Automotive Accessories
Part NumberFSD23-734
Airline Length - Size12 Feet of 1/2" High-Pressure Airline
Horn LengthsEach Horn Measurement: 21.75” Lg. – 17.75” Med. - 13.5” Sm.
Horn MaterialStainless-Steel Trumpets with Zinc-Alloy Metal Base
Installation guidehttps://kleinnretail.s3.amazonaws.com/pdfs/KL%20FSD23-734.pdf
Model 1302Quick connect relocation kit - place air source wherever you wish
Model 6351RT3-Gallon Air Tank with Cortec Interior Anti-Corrosion Coating
Model 6450RCWaterproof Air Compressor - 200 PSI - 100% Duty-Cycle
Model 730Demon Black Stainless Steel Triple Train Horn - Produces a thundering 157.8 dB Blast
Model INF-1Tire Inflation Kit- 24' Heavy-Duty Hose w/ Quick-connect couplers - Glow Face Gauge Inflator
Model VX-6003Heavy-Duty Brass Air Solenoid (12-Volt) - 3/8" inlet/outlet
MountingCustom Powder Coated Steel Mounting Brackets, Made in the USA!
Upgrades AvailableUltra BlastMaster Upgrade kit 6890, Model 333 Sniper Remote Control kit, HCL-3 Horn Covers
Weight77 lbs

Vehicle Fitment

Year(s)MakeModelSubmodelNotes
2023-2026FordF-250 Super DutyBASEHorn 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
2023-2024, 2026FordF-350 Super DutyBASEHorn 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
2025FordF-350 Super DutyBASEHorn Brackets Interfere w/ Tremor, Plow, Winch, Aftermarket Bumper, PTO; Horn Brackets do not bolt up on F-450 with 6.7 High Output; Location - Horns: Behind Front Bumper. Tank: Along Crossmember in Front of the Spare Tire. Compressor: Rear Passenger Side Inner Frame Rail
2023-2025FordF-450 Super DutyBASEHorn 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

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Kleinn Automotive Accessories P/N FSD23-734

Onboard Air Systems

$1,499.95

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In Stock
16 from our supplier network

Free pickup at an H&H store Free — we'll bring it to your store, usually 1–3 days
Professional installation available
We install this. Labor runs $140/hour and the time varies by product, so call your local store for an exact quote.
Nothing is charged for it today — your local H&H store works out the exact cost when they call to say your order has landed.
Ships Fast
Free store pickupReady at your local H&H
22 storesAcross the Southeast
Family-ownedServing trucks since 1987
Installation availableLabor from $140/hour — ask your store
Fitment guaranteeIf it doesn't fit, no restocking fee Details
Price matchFound it cheaper? Tell us before you buy Details
Warranty handled hereClaim it at the store, not by mail Details
4.8 out of 5 stars, 5,735 Google store reviews. These rate our stores, not this product. Read the reviews.
4.8
5,735 reviews
Store reviews on Google

Rated 4.8 across 24 stores

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.

Oxford · 1 day ago

Bedliner installed, in and out less than 20 minutes

Jonesboro · 1 day ago

Brian was so very professional and knowledgeable of the job he performed!!!

Lilburn · 2 days ago

I purchased a roll up cover that came damaged from the factory. Jim was able to kindly replace my broken part with another one. Exceptional customer service.

Marietta · 3 days ago

Great service as always. Needed something quickly, the store had it in stock and was able to pickup within minutes. Justin was helpful and very accommodating. Highly recommend!

Gainesville · 3 days ago

Just had Arcane Warrior roof rack installed. Unbelievably quick and convenient service. Blake and Garrett were readily available and exceptionally personable. Highly recommend them for any and all truck accessory recommendations, provisions and installations!

Cumming · 4 days ago

Good pricing, fast service. Quality products.

Trussville · 4 days ago

Good experience. If you need truck accessories, these are the guys.

Madison · 4 days ago

⭐️⭐️⭐️⭐️⭐️ WOW – That’s How You Stand Behind Your Work H&H installed my airbags last year, and recently I ran into an issue where they stopped working. From the very first call, they were incredibly helpful and patient, walking me through troubleshooting over the phone trying to save me a trip. When we couldn’t get it resolved, I called first thing Monday morning and they had me scheduled right away. They got the truck in, diagnosed the issue, and replaced the parts — completely under warranty — no hassle, no excuses. A couple hours later I was back on the road. That’s rare service these days. Professional. Honest. Stand-up guys who truly stand behind their work. H&H is hands down the place to go for all your truck needs. 💪

Pensacola · 4 days ago

Very knowledgeable, great selection and fast install .

Reviews of H&H Truck & Outdoor stores, sourced from Google. They rate our stores and service, not this individual product.

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Popular with the Ford F-250 Super Duty