Model 500: The "Sentinel" Chrome-Plated ABS Triple Train Horns -Chrome 307 Solenoid

KL 500

$203.95
$203.95 $239.95

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Model 500: The "Sentinel" Tri-Mount Chrome-Plated ABS Triple Train Horns - 307 Solenoid - 1/4" Airline

The Titan of the Road Has Arrived!

The Model 500 Sentinel is the foundation of our 500 Series train horn lineup, offering a significant step up in depth and resonance from the compact horn series. Featuring three separately tuned trumpets (16", 14", and 11"), it produces an authentic locomotive tone with a measured output of 151.8 dB. By utilizing chrome-plated high-impact ABS, we’ve engineered a horn that delivers a rich, deep sound profile without the excessive weight of all-metal units, providing 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 Sentinel ensures reliable air flow for an instantaneous, crisp blast every time you hit the switch. The ABS trumpets are mounted on a heavy-duty triangular right-angle bracket crafted from sturdy aluminum, which is 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 500 Sentinel is the perfect fit for the enthusiast who wants more presence than compact air horns but doesn't require 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.

WHY CHOOSE THE "SENTINEL” 500 HORNS?

  • Tri-Mount Chrome Design: Featuring three high-impact ABS trumpets integrated into a single heavy-duty air block with a right-angle mounting bracket, this system is engineered for maximum durability and a massive, multi-tonal locomotive blast. Its lightweight, compact architecture allows for a seamless, bolt-on installation across a wide variety of vehicle applications.
  • True Locomotive Tone: The three-trumpet design (16", 14", and 11") is precision-tuned to create a deep, harmonic chord that mirrors a real train.
  • Optimized Performance: Positioned as the base tier in the series, the 500 Sentinel features a 307 chrome solenoid fed by a 1/4" airline that delivers that rich, more resonant blast than the smaller bell Kleinn compact horn series.
  • Weather-Resistant Durability: Chrome-plated high-impact ABS trumpets provide a mirror-finish look while remaining lightweight and resistant to the elements.
  • Customizable Soundscape: The reversible trumpets allow you to direct sound both forward and backward, creating a realistic multi-directional effect.
  • Versatile Mounting: The heavy-duty aluminum triangular bracket is designed for a low-profile fit, making it ideal for both under-body and rooftop installations.

THE VERDICT: The Sentinel 500 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?

  • (500) Sentinel Triple Trumpet Assembly: High-impact ABS chrome-plated 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 1/4” Outer Diameter Airline

THE KLEINN 500 SERIES HIERARCHY

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.

⚠️ SYSTEM REQUIREMENTS & COMPATIBILITY

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:

  • 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

The "Sentinel 500" is the official replacement for the following Kleinn Air Systems:

  • Universal ProBlaster™ Train Horn Kits: Model HK6

Air Horns vs. Train Horns

Find Your Signature Blast

The Screamer

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.

Classic Chrome
  • Compact Horns: 102 / 130 / 141
  • Kits: HK2 / HK3 / HK4
Stealth Black
  • Compact Horns: 101 / 102-1 / 130-1 / 141-1
  • Kits: HK1 / HK2-1 / HK3-1 / HK4-1 / HKUTV / Vehicle Specific Kits 102, 102-1
The Deep Rumble

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.

Classic Chrome
  • Train Horns: 500 / 501 / 502 / 630
  • Kits: HK6 / HK8
Stealth Black
  • Train Horns: 220 / 230 / 730
  • Kits: HK5 / HK7 / HK9 / HK9-Slimline / All Vehicle Specific Train Horn Kits

Professional-grade engineering. Legendary Kleinn Performance.

Too Loud? Too Bad

Train Horn Specifications

Tri-Mount ABS Train Horns
Part Number Model 500 "Sentinel"
Number of Horns 3 Horns (Individual Mount)
Warranty 1-Year Warranty
Construction Chrome ABS 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 Horn) 16” Lg. - 14" Med. - 11" Sm.
Minimum Tank Size Required 2.5-Gallon
Airline Length and Size Included 12’ of 1/4” OD Airline

Installation Instruction Links:

Model 500: The "Sentinel" Chrome-Plated ABS Triple Train Horns -Chrome 307 Solenoid

$203.95

Does it come with a warranty?

Kleinn Automotive Accessories Limited Warranty

Kleinn Automotive Accessories stands behind the quality and craftsmanship of our products. Our products are covered against defects in materials and workmanship when properly installed and used under normal operating conditions, subject to the terms below.

One-Year Limited Warranty

Unless otherwise specified, Kleinn Automotive Accessories products are covered by a 1-year limited warranty from the original date of purchase.

This warranty applies to the original purchaser and covers defects in materials and workmanship under normal use.

If a product is determined to have a covered warranty defect, Kleinn Automotive Accessories will, at its discretion, repair or replace the defective product or component.

What Is Not Covered

This warranty does not cover damage or failure resulting from:

  • Improper installation
  • Misuse, abuse, or improper operation
  • Use outside the product's intended application or specifications
  • Modification or alteration of the product
  • Accidents or physical damage
  • Electrical damage
  • Environmental damage or exposure
  • Normal wear and tear

Kleinn Automotive Accessories is not responsible for installation or removal charges, diagnostic fees, labor costs, vehicle downtime, loss of use, or other incidental or consequential expenses associated with warranty service.

Warranty Claims

To request warranty service, email warranty@kleinn.com with the following information:

  • A copy of your original sales receipt or proof of purchase
  • Your full name
  • Email address
  • Telephone number
  • A brief description of the issue

A Kleinn representative will review your claim and may first attempt to resolve the issue through technical support.

If the product needs to be returned for inspection, Kleinn will provide a Return Authorization (RA) number and return instructions. Products should not be returned without prior authorization.

Once received, the product will be inspected to determine whether the issue is covered under warranty. If a covered defect in materials or workmanship is confirmed, Kleinn will, at its discretion, repair or replace the defective product or component.

If inspection determines that the product does not have a covered warranty defect, the product may be returned to the customer, and the customer will be responsible for applicable return shipping costs.

This limited warranty gives you specific legal rights. You may also have other rights, which vary from state to state.

Kleinn Automotive Accessories
4045 N. Highway Drive, Tucson, AZ 85705
Tel (520) 579-1531

What's the returns policy?

How To Return An Item

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.

Return Non-Exceptions

Merchandise that has been worn, used, or altered will not be accepted for return or exchange.

Restocking Fee

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.

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