KL SDKIT17-734STL-NOB - BOLT-ON STEEL TRAIN HORN / ONBOARD AIR KIT - 2017-2026 FORD F-250 / F-350 / F-450
KL SDKIT17-734STL-NOB
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KL SDKIT17-734STL-NOB - BOLT-ON STEEL TRAIN HORN / ONBOARD AIR KIT - 2017-2026 FORD F-250 / F-350 / F-450 New Open Box [PNXXXX-NOB]
Previously opened boxes that have been reboxed. NOB-Stock goods have the same 1-year warranty as all other Kleinn products.
Model SDKIT17-734STL: Spare Tire Location Onboard Air & Triple Train Horn System
- Brand: Kleinn Automotive Accessories
- Product Type: Bolt-On Vehicle Specific Steel Train Horns & Onboard Air System
- SKU: KL SDKIT17-734STL
- Compatible Vehicles: 2017-2026 Ford F-250 / F-350 / F-450 Super Duty (All Trims)
- Horn Installation Instructions
- Tank and Compressor Installation Instructions
Built For Modified Rigs. Engineered To Dominate.
Standard horn kits assume your truck is straight off the factory floor—but your build is anything but stock. The Kleinn Automotive Accessories SDKIT17-734STL Steel Triple Train Horns and Onboard Air System is the ultimate, uncompromising solution for Ford Super Duty owners running oversized off-road tires, aggressive aftermarket bumpers, or heavy-duty behind-the-bumper winches.
When modifications take up valuable under-chassis real estate, this premium system saves the day. By utilizing vehicle-specific, powder-coated steel brackets, it intelligently reclaims the factory spare tire cavity to mount the legendary Kleinn 730 Demon™ train horns. The air tank and compressor seamlessly tuck into the surrounding spaces without interfering with your aftermarket upgrades. The result? A completely hidden, high-performance stealth installation that protects your gear from road debris while delivering a true 100% bolt-on fit—meaning absolutely zero cutting, drilling, or welding on your truck's frame.
The Ultimate Onboard Air Command Center
Don't settle for basic horn kits that only make noise—this system transforms your rig into a fully functional, mobile pneumatic powerhouse. At the heart of this heavy-hitting package is a genuine Kleinn heavy-duty, 100% duty-cycle waterproof air compressor paired with a high-capacity air tank.
This creates an incredibly versatile onboard air station engineered for real-world utility. Whether you need to air up large off-road trail tires after a weekend of wheeling, manage air suspension helper bags on the fly, or run pneumatic air tools right from your truck bed, this system delivers instant, reliable high-pressure air on demand. Every chassis-specific bracket, high-pressure airline, and premium hardware component is precision-engineered to tuck completely out of sight, providing clean, stealthy integration while offering maximum defense against harsh road debris, mud, and the elements.
Professional-Grade Durability, Stealth Bolt-on Design
You shouldn't have to sacrifice your truck's clean factory lines to get massive acoustic power. This complete onboard air and train horn system delivers the ultimate combination of high-output performance and a discreet, factory-style aesthetic.
Engineered specifically to survive the most punishing conditions, every component is strategically tucked away to maintain your rig's clean look while keeping the hardware safe from mud, water, and road debris. It is the perfect, low-profile upgrade for serious custom truck builds that demand maximum dependability without the cluttered look of universal kits.
Highlights for SDKIT17-734STL: Ford super-duty 2017-2026
- Custom Mounting Brackets: Direct-Fit No-Drill Infrastructure. These vehicle-specific, heavy-duty steel mounting plates feature a durable black powder-coated finish and bolt directly into existing factory frame holes, providing a rock-solid, custom-fit foundation engineered specifically for proprietary, genuine Kleinn components.
- Strategic Multi-Zone Space Allocation: Brackets locate the air tank along the crossmember in front of the spare tire area, tuck the compressor safely on the passenger side inner frame rail, and position the massive horns directly in the empty factory spare tire pocket.
- Model 730 Demon™ Triple Steel Train Horns: Precision-tuned detachable triple stainless steel trumpets with custom mounting configuration footprint, shipped on flat-rack bar. These horns receive air from a high-flow VX6003 brass solenoid and heavy-duty 1/2" airline to deliver an authentic, window-rattling locomotive roar.
- Model 6450RC Waterproof Air Compressor: Industry-exclusive fully sealed pump delivering up to 200 PSI with a 100% duty-cycle, engineered to operate flawlessly in harsh, moisture-heavy under-truck environments.
- Model 6351RT 3-Gallon Air Tank: Specialized heavy-gauge steel multi-port reservoir treated with an internal Cortec anti-corrosion coating to eliminate rust and protect downstream components.
- Premium INF-1 Tire Inflation Station: Includes a pro-grade inflation setup featuring a 24' heavy-duty air hose with pre-attached quick-connect couplers, a custom analog glow-gauge inflator, a secure clip-lock chuck, and an integrated pressure-release button.
- 1302 Quick-Connect Relocation Architecture: Fully equipped with a dedicated bumper/hitch mounting bracket layout, 12 ft of specialized high-pressure airline, and premium adapter fittings designed to position the inflation port cleanly under your bumper or next to your trailer hitch receiver.
- Installation Pack: 1/2" OD high-pressure airline, automated pressure switch, high-pressure tank fittings, wiring kit, mounting hardware, and horn button.
For the ultimate locomotive experience, add the Ultra BlastMaster Upgrade Kit. Boost output by 30% with Model 6890 by doubling the airflow using dedicated 1/2" lines and individual high-flow brass solenoids for each train horn.
Train Horn Specifications
| Triple Steel Train Horns | |
|---|---|
| Part Number | Model (730) “The Demon" |
| Number of Horns | 3 (Flat Rack or Individual Mount) |
| Warranty | 2-Year Warranty |
| Construction | Stainless Steel Trumpets |
| Brass Solenoid | P/N VX6003 (12-Volt) |
| Max Pressure | 200 PSI |
| Output (dB) | 157.8 dB (159.6 dB w/ 6890 Upgrade Kit) |
| Rack Dimensions | 22.5” L x 18.5” W x 7.25” H |
| Trumpet Lengths | 21.75”, 17.75”, 13.5” |
| Airline Size | 1/2" OD Airline |
Air Compressor Specifications
| Feature | Feature Details |
|---|---|
| Part Number | Model 6450RC |
| Warranty | 2-Year Extended (6450RC, 6650RC, & 730) |
| Max Pressure | 200 PSI |
| Duty Cycle | 100% @ 100 PSI (@ 72° F) |
| Flow Rate | @ 0 PSI (13.8 Volts): 2.1 CFM |
| Compressor Type | Waterproof Sealed, Oil-less |
| Voltage | 12-Volt DC |
| Motor Type | Permanent Magnetic Motor |
| Max Tank Size | 7.0 Gallon |
| Max Amp Draw | 23 Amps |
| Dimensions | 11.25” L x 4” W x 6.50” H |
| Mounting Holes | 8.90” L x 3.31” W (5mm Diameter) |
| Mounting Note | Mountable in any position except upside down |
| Shipping Weight | 12 lbs |
| Pressure Switch | P/N 2151 (Works with 52175 Safety Valve) |
Air Tank Specifications
| Slim Mount Air Tank | Model 6351RT |
|---|---|
| Warranty | 1-Year |
| Tank Capacity | 3-Gallon |
| Construction | All Steel Design (Gloss Black Epoxy Finish) |
| Internal Coating | Cortec Internal Anti-Corrosion Coating |
| Mounting Legs | 2 Legs w/ 4 Mounting Points |
| Air Tank Ports | Five - 1/4" NPT Ports & One - 3/8" NPT Ports |
| Mounting Hardware | Fitting Pack - 4 Bolts, Nuts, Washers |
| Max Pressure | 200 PSI |
| Dimensions | 27” L x 6” W x 8” H |
Air Tank Fill Rates
| Tank Capacity | Pressure Range | Fill Rate |
|---|---|---|
| 2.5 Gallon | 0 - 150 PSI | 2 Min. 54 Sec. (+/- 10 Sec.) |
| 2.5 Gallon | 110 - 150 PSI | 54 Sec. (+/- 5 Sec.) |
| 5 Gallon | 0 - 150 PSI | 5 Min. 57 Sec. (+/- 10 Sec.) |
| 5 Gallon | 110 - 150 PSI | 1 Min. 53 Sec. (+/- 5 Sec.) |
Installation Links:
