The Kleinn Universal Heavy Duty Onboard Air Systems (Models 6350 & 6450) are designed for drivers who need serious onboard air performance for demanding applications. These systems deliver high-output compressed air while maintaining durability and reliability in extreme environments.
Built with 100% duty cycle waterproof compressors, these systems are engineered for continuous operation—making them ideal for off-road use, work trucks, and heavy-duty builds. The included air tanks provide sufficient volume for extended use, allowing you to power horns, inflate tires, and operate accessories without interruption.
Additional features include corrosion-resistant steel air tanks, snorkel intake systems for clean airflow, and complete inflation kits with hoses and gauges. These systems are designed to go beyond simple horn setups, offering true onboard air capability.
Engineered with universal fitment, they can be mounted in engine bays, underbody locations, or along frame rails depending on your vehicle and setup.
Installation is typically a bolt-on process with wiring, making it suitable for both DIY and professional installs.
Whether you're upgrading for air horns, off-road tire inflation, air suspension, or tool use, these systems deliver professional-grade performance. Now Available at LEER!
Features & Specifications
Product Type: Onboard Air System
Material: Steel air tank / sealed compressor components
Finish Options: Black corrosion-resistant coating
Mounting Type: Universal bolt-on
Fitment: Universal
Design: High-capacity compressor + tank system
Key Dimensions:
- Tank Capacity: ~3 gallons (6350) / ~5 gallons (6450 configurations)
Functionality:
- Powers air horns and train horns
- Inflates large off-road tires
- Supports air suspension and tools
Available Options
Heavy Duty System (Model 6350)
Kleinn 6350 Heavy Duty Onboard Air System - 150 PSI 100% duty cycle onboard air system with 3-gallon tank for serious multi-use performance.
- 150 PSI max pressure
- 100% duty cycle compressor
- 3-gallon air tank
- Includes tire inflation kit
Best for daily heavy-duty use, off-road builds, and moderate air tool support
Ultra Heavy Duty System (Model 6450)
Kleinn 6450 Ultra Heavy Duty Onboard Air System - Upgraded high-output onboard air system with increased airflow and performance for extreme builds.
- 150 PSI high-performance system
- Higher airflow output than 6350
- Larger/expanded system configurations
Best for extreme builds, large air systems, and maximum performance demands
Choose 6350 for reliable heavy-duty use, or 6450 for maximum airflow and extreme applications.
Why Choose Kleinn Heavy Duty Air Systems?
This product is ideal for customers who want professional-grade onboard air performance.
- Continuous-duty compressor for demanding environments
- Large tank capacity for longer air supply
- Supports multiple accessories beyond horns
- Built for off-road, work, and high-performance setups
What’s Included
- Air compressor (model-specific)
- Steel air tank
- Pressure switch and safety valve
- Snorkel intake system
- Tire inflation kit (hose, gauge, storage case)
- Airline tubing and fittings
- Mounting hardware
- Installation instructions
Installation Notes
- Universal fitment; mounting location required
- Requires 12V power connection
- Typical install time: 2–4 hours
- Can be mounted underbody, frame rail, or engine bay
- Compressor should not be mounted upside down
Warranty Information
Kleinn Warranty
Kleinn products are backed by a limited warranty, covering defects in materials and workmanship.
