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LABOR DAY SALE • 15% OFF SITEWIDE • PRICES AS MARKED
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LABOR DAY SALE • 15% OFF SITEWIDE • PRICES AS MARKED
KL 501
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PERFORMANCE & SOUND PROFILE
The Model 501 Warlock is the premium mid-tier upgrade in our 500 Series train horn lineup, offering a massive step up in resonance and tone from composite air horns. Moving from composite materials to three precision-tuned steel trumpets (16", 14", and 11"), it produces a majestic, deep harmonic chord that carries much further down the road. Finished in a mirror-like chrome plating, we’ve engineered a horn that provides show-quality brilliance paired with an authentic locomotive roar, ensuring a "clear the way" authority that is loud, professional, and commanding.
ADVANCED AIR FLOW & MOUNTING
Equipped with our high-performance Model 307 Vortex™ 4 Solenoid Valve, the 500 Series architecture ensures reliable air flow for an instantaneous, crisp blast every time you hit the switch. The steel trumpets are integrated into a single heavy-duty air block with a triangular right-angle bracket crafted from sturdy aluminum, designed for versatile installation on rooftops or under-body frames. A unique feature of this mount is the reversible trumpets, allowing you to face them in different directions to create a realistic, multi-directional sound effect just like a real moving train.
PROFESSIONAL GRADE CONSTRUCTION AND PERFORMANCE
The Model 501 Warlock is the perfect fit for the enthusiast who wants a richer, more melodic train sound and the rugged durability of chrome-plated steel without requiring the extreme, maximum-output intensity of our Top Tier 502 Kraken Horns. It offers the perfect balance of durability and performance, making it the ideal choice for trucks and SUVs looking for a legitimate train horn look and sound.
THE VERDICT: The Warlock 501 is the perfect step up into the world of premium steel Kleinn train horns. It's a cost-effective, high-output solution that proves you can capture a richer, more melodic train sound and command the road with a legendary locomotive roar.
MODEL 500 "SENTINEL": THE FOUNDATION OF AUTHORITY
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
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
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 1/2” 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.
THE 500 SERIES TRAIN HORNS
These units require compressed air and demand 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:
THE "WARLOCK 501" IS THE DIRECT REPLACEMENT FOR:
Find Your Signature Blast
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.
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.
Professional-grade engineering. Legendary Kleinn Performance.
Too Loud? Too Bad
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Tri-Mount Steel Train Horns |
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| Part Number | Model 501 "Warlock" |
| Number of Horns | 3 Horns (Individual Mount) |
| Warranty | 1-Year Warranty |
| Construction | Chrome-Plated Steel Trumpets |
| Activation 12v Solenoid (Chrome) | P/N- 307 |
| Min / Max Pressure | 140 - 160 PSI |
| Output (dB) @ 150 PSI | 151.8 dB |
| Dimensions Overall | 15.5” L x 11.5” W x 11.5” H |
| Dimensions (Each Individual Horn) | 16” Lg. - 14" Med. - 11" Sm. |
| Minimum Tank Size Required | 2.5-Gallon Tank Minimum |
| Airline Length and Size Included | 12’ of 1/4” OD Airline |

$246.45
Kleinn Automotive Accessories is committed to delivering high-quality products to our customers. We stand behind the craftsmanship and materials of our products by offering a comprehensive one-year limited warranty. This warranty is extended to the original purchaser, ensuring that when our products are installed properly and used under standard conditions, they will be free from defects in workmanship and materials for a period of one year from the original date of purchase.
This warranty encompasses a promise that the product you have purchased will perform as expected under normal use conditions and will not suffer from flaws in materials or craftsmanship. However, it is important to note that this warranty does not cover any damage that results from abusive use, operation that is not in line with the product’s intended purpose, or harm resulting from exposure to harsh environmental conditions. In the event that a product is found to be defective within the warranty period following a thorough inspection, Kleinn Automotive Accessories reserves the right to either repair or replace the defective item at no additional charge to the purchaser. It is our goal to ensure that our products meet the high standards that our customers expect, but we also want to clarify that Kleinn is not responsible for covering any costs related to the installation of our products, nor are we liable for any loss or damage that may occur as a result of the repair or replacement process of any product under warranty.
Understanding the specific needs of our customers and the demands placed on certain products, Kleinn Automotive Accessories is pleased to offer an exclusive extended two-year warranty for our 6450/6650 Compressors and 730 Horns. This special warranty extension reflects our confidence in these products’ durability and performance. Eligible products under this extended warranty will enjoy all the benefits of our standard one-year warranty with an additional year of protection, totaling two years from the date of purchase. This extended warranty coverage ensures that these specific models, recognized for their robustness and reliability, receive the extra assurance customers desire for these critical components.
Should you need to initiate a return under the warranty, we have a straightforward process designed to make it as convenient as possible for our valued customers. To start, you will need to email a copy of your sales receipt, which must be dated within the past year for standard warranty claims or within the past two years for claims under the extended warranty for the 6450 Compressors and 730 Horns. This email should be directed to our Warranty Manager and include your full name, email address, telephone number, and a concise description of the problem you are experiencing.
Upon receipt of your email, a dedicated representative from Kleinn Automotive Accessories will reach out to you directly. Our first step will always be to attempt to resolve the issue through technical support, aiming to provide a quick and effective solution. If the problem cannot be addressed remotely, our representative will issue a Return Authorization number. This number is crucial as it will identify your return throughout the inspection process. You are then required to send the product back to Kleinn Automotive Accessories for a comprehensive physical inspection.
Upon inspection, if the product is determined to be defective due to issues in workmanship or materials, Kleinn will undertake to either repair or replace the product at our discretion. We are committed to ensuring that our customers receive products that meet our high-quality standards, and we will make every effort to resolve warranty claims to your satisfaction. However, if the inspection reveals that the product does not have a material defect, we will return the unit to the customer. In such cases, the shipping costs for the return will be the responsibility of the customer.
Your item must be in its original unused condition to be returned, unless there is a manufacturer defect. You must return the item within 30 days of your purchase.
1. Please email support@kleinn.com to request a refund and we will assign you a Return Authorization #.
2. Mail your returned item to:
Kleinn Automotive Accessories
Returns Department
4045 N Highway Drive
Tucson, AZ 85705
3. Include in your package a signed letter stating the reason for your return and the original receipt.
Merchandise that has been worn, used, or altered will not be accepted for return or exchange.
All returns are subject to a 15% restocking fee, which will be deducted from your refund. If shipping and handling fees were applied to your order, they are non-refundable.