Kleinn Automotive Accessories P/N FSD23-734

Onboard Air Systems

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
2023-2026FordF-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
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
Kleinn Automotive Accessories P/N FSD23-734

Onboard Air Systems

$1,499.95

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13 in stock!
In our warehouses — we’ll bring it to your local H&H store, usually 1–3 days
If an item can't be sourced, a refund will be given and the order will be canceled.

Free pickup at an H&H store Free — we'll bring it to your store, usually 1–3 days
Professional installation available
Install times vary — call your local store for an installation quote!
Ships Fast
Onboard Air w/ Horns
Free store pickupReady at your local H&H
22 storesAcross the Southeast
Family-ownedServing trucks since 1987
Installation availableAsk your store for a quote
4.8
5,563 reviews
Customer Reviews

Rated 4.8 across 22 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.

Pensacola · 10 hours ago

Easy people to deal with and friendly. Will do business again with them.

Marietta · 24 hours ago

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!

Pelham · 24 hours ago

Bought step rails for a truck. Took less than an hour to have them installed! Great work!

Gainesville · 24 hours ago

Great service. Super quick install.

Trussville · 2 days ago

Love the new look

B K
Conyers · 3 days ago

Eric was a pleasure to work with on my LEER top! Capable service guys installed my top and it looks great. Thank you!

Cumming · 6 days ago

My experience was great Brandon was exceptionally helpful and professional and the crew did a great job installing my tonneau cover Thanks

Decatur · 1 week ago

Tyler and his team have done a couple different jobs for me this year on two different trucks. The quality of work was outstanding.

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