Model 501: The "Warlock" Chrome-Plated Steel Triple Train Horns - Chrome 307 Solenoid
KL 501
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Model 501: The "Warlock" Tri-Mount Chrome-Plated Steel Triple Train Horns - 307 Solenoid - 1/4" Airline
The High-Resonance Steel Upgrade
If you’re looking for a train horn that sounds as good as it looks, the Model 501 "Warlock" is the definitive choice. While entry-level horns rely on composite materials, the Warlock steps up to premium chrome-plated steel trumpets. This upgrade in material isn't just for show—it provides a significantly higher level of resonance and a "magical" deep harmonic chord that carries much further down the road, ensuring your presence is felt long before you're seen.
Show-Quality Brilliance & Durability
Warlock 501 features three precision-tuned steel trumpets (16", 14", and 11") finished in a mirror-like chrome plating that is built to withstand the elements. Whether mounted on a rooftop or tucked under the chassis, these horns maintain their show-quality luster while delivering a professional-grade locomotive blast. Driven by our reliable Model 307 Vortex™ 4 Solenoid and a high-pressure 1/4" airline, the Warlock provides a crisp, instantaneous response every time you hit the switch.
Versatile "Tri-Mount" Engineering
Installation is made simple with the heavy-duty aluminum triangular mounting bracket. This design offers a unique reversible trumpet feature. You can face the trumpets in different directions to create a realistic, multi-directional sound field that mimics a massive freight train in motion. It is the perfect mid-range powerhouse for trucks and SUVs that demand a high-impact sound profile and rugged steel construction.
WHY CHOOSE THE WARLOCK 501 HORNS?
- Chrome-Plated Steel Trumpets: A major upgrade from ABS, offering superior resonance and a deeper, richer tonal quality.
- True Locomotive Tone: The three-trumpet layout is engineered to create a "magical" deep tone that cuts through sirens, construction and heavy road noise.
- Vortex™ 4 Solenoid Performance: Includes our high-flow 307 chrome solenoid and 1/4" airline that delivers that rich, resonant blast that composite horns can't deliver.
- Multi-Directional Sound: Reversible trumpets allow you to customize your soundscape, directing the blast exactly where you want it.
- Rugged All-Weather Build: Designed to handle vibration, moisture, and road debris without losing its mirror finish.
THE VERDICT: The 501 Warlock is the definitive jump into the world of premium Kleinn train horns. It's a cost-effective, high-output solution that proves you don't need to break the bank to command the road with a legendary locomotive roar.
WHAT'S IN THE BOX?
- (501) Warlock Triple Trumpet Assembly: High-impact chrome-plated steel trumpets in 16", 14", and 11" lengths.
- Triangular Mounting Base: Heavy-duty aluminum right-angle bracket for secure, multi-surface mounting.
- Hardware Kit: All necessary bolts and fasteners for the horn and bracket assembly.
- (Model 307) Solenoid: (1) Vortex™ 4 12V Solenoid. Dedicated electronic air horn solenoid valve.
- (Model 25014-1) Airline: 12 ft ¼” Outer Diameter Airline
THE KLEINN 500 SERIES HIERARCHY:
Model 500 "Sentinel": The Foundation of Authority
Model 500 "Sentinel": The essential Entry-Level Powerhouse for the 500 Series. Designed to be the "watchman" of the road, it provides the authentic locomotive sound Kleinn is famous for without the premium price tag. Engineered with high-impact chrome ABS trumpets, the Sentinel offers incredible durability and a mirror-like finish that stands up to the elements. Driven by our reliable chrome 307 solenoid and a high-pressure 1/4" airline, this system delivers a sharp, aggressive blast that instantly replaces your weak factory horn with a reliable and authoritative presence. It is the perfect starting point for drivers who want a professional-grade train horn that is both lightweight and incredibly loud.
Model 501 "Warlock": The Bridge of the 500 Series
Model 501 "Warlock": The Mid-Tier. A step up in resonance and tone, this system takes performance to the next level by moving from composite materials to premium chrome steel trumpets. The result is a significant increase in resonance and tonal depth, producing a "magical" deep harmonic chord that carries much further than standard horns. Powered by our reliable chrome 307 solenoid and a high-pressure 1/4" airline, the Warlock offers the perfect balance of show-quality aesthetics and a penetrating locomotive blast. It is the ideal choice for drivers who want a richer, more melodic train sound and the rugged durability of chrome-plated steel.
Model 502 "Kraken": The Apex of the 500 Series
Model 502 "Kraken": The Top-Tier. Engineered for those who demand nothing less than total dominance. By upgrading to the Vortex 6 VX6003 heavy-duty brass solenoid and a massive ½” high-flow airline, the Kraken moves a staggering volume of air instantaneously through the chrome finished steel, wide bell train horns. As the king of the family, it delivers maximum air volume and the highest output possible, producing a bone-rattling locomotive blast that is significantly louder and deeper than the entry-level models. If you want the ultimate "get out of the way" authority, the Kraken is your weapon of choice.
⚠️ System Requirements & Compatibility
The 500 Series Train Horns require compressed air and require a minimum 2.5-Gallon air tank for sufficient blast time. The optimal cut-off pressure is between 140 PSI to 160 PSI.
Kleinn Air Systems designed specifically to run the 500 Series horns:
- Model 6350: 150 PSI | 100% Duty Cycle | Heavy-Duty Onboard Air System
- Model 6450: 200 PSI | 100% Duty Cycle | Ultra Heavy-Duty Onboard Air System
Air Horns vs. Train Horns
Find Your Signature Blast
Compact Air Horn Series
Engineered for "Emergency Vehicle" authority. This series delivers a sharp, high-frequency blast designed to cut through ambient noise instantly. With 3.5" bells, these horns produce a piercing scream that commands attention in heavy traffic.
- Compact Horns: 102 / 130 / 141
- Kits: HK2 / HK3 / HK4
- Compact Horns: 101 / 102-1 / 130-1 / 141-1
- Kits: HK1 / HK2-1 / HK3-1 / HK4-1 / HKUTV / Vehicle Specific Kits 102, 102-1
Train Horn Series
Don’t just make noise—make an impact. Engineered with massive 6-7" bells, our Train Horns move huge volumes of air to create a deep, earth-shaking rumble. This is the authentic tone of a 40,000-lb locomotive.
- Train Horns: 500 / 501 / 502 / 630
- Kits: HK6 / HK8
- Train Horns: 220 / 230 / 730
- HK5 / HK7 / HK9 / HK9-Slimline / All Vehicle Specific Train Horn Kits
Professional-grade engineering. Legendary Kleinn Performance.
Too Loud? Too Bad!
Train Horn Specifications
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Tri-Mount Steel Train Horns |
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Part Number |
Model 501 "Warlock" |
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Number of Horns |
3 Horns (Individual Mount) |
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Warranty |
1-Year Warranty |
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Construction |
Chrome Steel Trumpets |
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12v Solenoid (Chrome) |
P/N- 307 |
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Min / Max Pressure |
140 - 160 PSI |
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Output (dB) @ 150 PSI |
152.2 dB |
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Dimensions Overall |
15.5” L x 11.5” W x 11.5” H |
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Dimensions (Each Horn) |
16” Lg. - 14" Med. - 11" Sm. |
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Minimum Tank Size Required |
2.5-Gallon |
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Airline Length & Size Included |
12’ of ¼” OD Airline |
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Installation Instruction Links:

$289.95