DIRECT FIT TRAIN HORN AND ONBOARD AIR SYSTEMS FOR 2017-2022 FORD F-250 / F-350 / F-450

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KL SDKIT17-734

Kit Type
Regular price $1,376.95
Sale price $1,376.95 Regular price $1,529.95
In stock

PROP 65 WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.

DIRECT FIT TRAIN HORN AND ONBOARD AIR SYSTEMS FOR 2017-2022 FORD F-250 / F-350 / F-450

$1,376.95

Overview

Power & Performance — Heavy-Duty Onboard Air Systems

At the heart of every Kleinn onboard air system is a 100% duty-cycle, submersible waterproof air compressor engineered for extreme reliability, fast recovery, and maximum airflow. The high-output compressor feeds a high-capacity, anti-corrosion inner-coated steel air tank built to withstand harsh under-vehicle conditions while delivering consistent pressure and long-term durability for your rig.

When activated, Kleinn train horn systems deliver a true locomotive-style blast engineered for maximum airflow and aggressive output. Whether equipped with ABS (230) or stainless steel (730) horns, each system is tuned to produce a serious road-clearing presence and the kind of attention-commanding performance professional truck builds demand.

System Performance Highlights

  • 100% Duty-Cycle - Waterproof Compressors
  • High-Output Locomotive-Style Air Blast
  • Tuned for Maximum Decibel Output
  • Internal Anti-Corrosion Coated Air Tanks
  • Integrated Tire Inflation Station Support

Kleinn systems don’t just outperform the competition—they redefine the standard. For more than 15 years, Kleinn has dominated by providing the most powerful onboard air systems and unrivaled locomotive volume available. As the only manufacturer to offer true, vehicle-specific bolt-on kits that preserve your OEM spare tire, Kleinn systems provide the perfect fusion of massive airflow and the real-world utility required for tire inflation, air lockers, and pneumatic tools.

True Direct-Fit Installation — Engineered in Tucson, AZ

Every Kleinn direct-fit train horn and onboard compressed air system starts at the Kleinn Automotive Accessories engineering facility in Tucson, Arizona. Our team designs and builds precision-fit, powder-coated steel brackets and pairs them with premium hardware defining what a "true" direct-fit kit should be.

These chassis-specific brackets bolt directly to factory mounting points, delivering a flawless, no-drill OEM-style installation that eliminates the guesswork and frustration of universal kits. By utilizing heavy-duty, laser-cut steel, we ensure each component is securely anchored to the vehicle, providing a stable foundation that can withstand extreme vibration and harsh off-road environments.

Vehicle Specific Kit Highlights

  • 100% bolt-on design
  • Powder-coated heavy-duty steel mounting brackets
  • No drilling. No Cutting. No Welding.
  • No fabrication required
  • Clean, stealth, under-truck mounting
  • Premium mounting hardware
  • Tire Inflation with compressed air service station
  • Spare tire is retained

Ditch the DIY guesswork. Experience a 100% bolt-on transformation that pairs OEM-Style finish with the aggressive performance of our signature train horn blast and compressed air system. Engineered for a perfect fit and maximum decibel output, this is professional grade power designed to dominate the road.

Built for Long-Term Performance — Heavy-Duty Reliability

Kleinn systems are engineered for long-term reliability, heavy-duty performance, and minimal maintenance. Every component is built to withstand harsh under-vehicle conditions while maintaining consistent air pressure and dependable output. Our onboard air systems don’t just survive the elements—they deliver professional-grade power exactly when you need it.

To maximize this utility, each complete system includes the Kleinn INF-1 Tire Inflation Kit and the (1302) Air Coupler Relocation Kit. This powerful combination transforms your vehicle into a convenient mobile air service station, providing the pneumatic muscle required for everything from rapid trail-side maintenance to daily heavy-duty utility.

kleinn COMPLETE SYSTEMS include

  • Heavy-Duty 24' Air Hose: Durable Kink-Resistant High Pressure Hose with attached quick connect couplers
  • Luminscent Gauge: Custom Tire Inflator with glow-in-the-dark face gauge, clip-on air chuck, pressure release
  • Premium Storage: Custom Kleinn canvas storage bag.
  • Coupler Relocation: Quick connect coupler, 12' airline, fittings. Mount your coupler anywhere
  • Automated Pressure: Pressure switch controls the compressor turning on and off automatically.
  • Installation Supplies: All Fittings, Airlines, Horn button, mounting hardware, thread sealant.
  • Complete Wiring: Relay, wires, loom, and fittings needed for installation.

Whether you’re commanding the road with a massive blast, airing up truck tires, or engaging pneumatic accessories, this system is engineered to stay strong and stay loud. The "Demon" bolt-on models ending in -734 enjoy an extended 2-year warranty on both the compressor and horn assembly. Don’t just hit the trail—dominate it with the peace of mind that comes with professional-grade engineering.

Kleinn 230 vs. 734 Systems
What’s the Difference?

Choosing the right system for your truck depends on your demand for air power and volume. While all options are 100% bolt-on, Kleinn systems are categorized into three distinct performance tiers:

Performance Tier Comparison For Vehicle Specific Kits

-OBA Series

Dedicated 200 PSI Onboard Air systems only. Designed for tire inflation, managing air suspension and lockers, and powering small air tools. Horns not included.

-230 Series

High-performance entry-point featuring the Beast™ Series 230 Triple ABS Train Horns, 1/4" airline, and our reliable 150 PSI onboard air system capable of filling tires up to 35".

-734 Series

Step up to the Demon™ Series featuring our 730 Stainless Steel Flagship Train Horns fed by 1/2" airline. The 734 is built to decimate all. UNMATCHED VOLUME. UNRIVALED POWER!

Vehicle Specific System Comparison at a Glance

Feature 230 Series (xxxxxx-230) 734 Series (xxxxxx-734)
Horn Model Beast™ Triple Train Demon™ Triple Train
Horn Material ABS Black Plastic Stainless Steel
Air Line Size 1/4" High-Pressure 1/2" Max-Flow
Air Compressor 6350RC (150 PSI) 6450RC (200 PSI)
Duty Cycle 100% Duty Cycle 100% Duty Cycle
Tire Inflation Up to 35" Tires Up to 39" Tires

Ultra BLASTMASTER™
UPGRADE OPTIONS

Maximize Your Horn's Potential

Maximize your horn's potential by upgrading the airflow. These kits bypass standard restrictions to deliver instant air directly to each horn.

Kleinn Model 6885 — Upgrade Kit for (xxxx-230)

Engineered specifically for -230 Beast Series systems, the 6885 BlastMaster™ shatters the limitation of standard 1/4" line. By feeding high-velocity air through a massive 1/2" primary line directly to a high-flow manifold, this kit floods each solenoid with maximum air volume. The result is a devastating increase in output and a sharper, perfectly synchronized tri-tone blast that hits with absolute authority.

  • Designed for Model 230 Beast Train Horns
  • (2) Heavy-duty VX6003 High-Flow Brass Solenoid Valves
  • High-Flow Manifold for maximum airline distribution
  • Optimized 1/2" Airline from the tank to the manifold
  • Delivers a massive 30-40% volume increase

Kleinn Model 6890 — Upgrade Kit for (xxxx-734)

Engineered for our flagship -734 Demon Series, the 6890 Ultra BlastMaster™ unleashes the dominance of the legendary 730 Demon Stainless Steel Horns. This kit completely replaces standard plumbing with a specialized high-volume manifold and 1/2" Max-Flow lines. By equipping each horn driver with its own dedicated solenoid, the 6890 upgrade ensures synchronized engagement and peak pressure for every blast.

  • Designed for Model 730 Demon Train Horns
  • (2) Heavy-duty VX6003 Brass Solenoid Valves
  • High-Flow Manifold for 1/2" airline distribution
  • Upgrades to 1/2" Max-Flow airlines delivered to each horn
  • Delivers a massive 30-40% volume increase

Does it come with a warranty?

One-Year Limited Defect Warranty for Kleinn Automotive Accessories:

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.

Extended Two-Year Warranty for Select Products:

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.

Detailed Warranty Return Procedure:

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.

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.