Auxiliary Air Springs for Trucks

Auxiliary air springs for trucks are a proven solution for improving driving stability, ride comfort, and driving safety. They support the existing leaf springs and help to better compensate for heavy loads, changing loads, and trailer operation.

Whether for distribution transport, construction site operations, municipal vehicles, tow trucks, or truck-based RVs – auxiliary air suspension ensures better vehicle attitude and more comfort in daily use.

Advantages of Auxiliary Air Springs for Trucks

Improved Driving Stability

Auxiliary air springs reduce body roll and side lean. The vehicle remains more controllable, even with heavy loads.

Increased Driving Comfort

Road irregularities are better absorbed. Drivers and vehicles benefit from smoother handling.

Individual Load Adjustment

Air pressure can be adjusted depending on the load. This ensures optimal vehicle leveling, both empty and loaded.

Relief of Leaf Springs

The auxiliary air suspension supports the existing leaf springs and reduces their load. This can positively impact driving behavior and the lifespan of chassis components.

Optimal Vehicle Attitude

A sagging rear or uneven loading can be compensated. The vehicle stands level and securely on the road again.

Why Auxiliary Air Springs Make Sense with Leaf Springs

Many trucks are equipped with leaf springs as standard. These are robust and durable but reach their limits with heavy or changing loads.

Auxiliary air springs offer crucial advantages here:

• Support for existing leaf springs
• Less sagging with heavy loads
• Improved driving stability
• Increased driving comfort
• Compensation for load differences
• Optimal vehicle height
• Protection of chassis and suspension

What Types of Air Suspensions Are Available?

Auxiliary Air Springs

Auxiliary air springs support the truck's existing leaf spring suspension. They are the most common retrofit solution and improve driving stability, ride comfort, and vehicle leveling.

Auxiliary Air Suspension

The term auxiliary air suspension is often used synonymously with auxiliary air springs. It refers to an air suspension system that complements the existing suspension.

Rear Axle Air Suspension

Many systems are mounted on the rear axle. This is where the greatest forces act on the chassis when loaded.

Front Axle Air Suspension

Air suspension systems for the front axle are also available for numerous truck models.

Single-Circuit Air Suspension

In a single-circuit system, both air bellows are inflated and regulated together.

Dual-Circuit Air Suspension

In a dual-circuit system, the left and right sides of the vehicle can be regulated independently.

Operation and Air Pressure Regulation

Different operating variants are available depending on the design.

Manual Inflation

The simplest variant uses filling valves. Air pressure is adjusted with a compressor or at a compressed air station as needed.

Air Pressure Regulation via Switch in the Cab

Many systems can be equipped with an electric compressor. Air pressure can be conveniently adjusted from the cab.

Radio Remote Control

Depending on the design, the air suspension can be controlled via a radio remote control.

Automatic Level Control

With certain systems, the vehicle height is automatically monitored and self-adjusted for load changes.

Single-Circuit or Dual-Circuit Systems

Single-circuit or dual-circuit systems are available depending on the vehicle and application.

For Which Trucks Are Auxiliary Air Springs Available?

Auxiliary air spring systems for the front axle, rear axle, or both axles are available for numerous truck models.

Manufacturer	Model	Front Axle	Rear Axle
DAF	LF 45	✓	–
DAF	LF 55	✓	–
DAF	LF Euro 6	✓	–
DAF	CF 75	✓	–
DAF	CF 85	✓	–
DAF	CF Euro 6	✓	–
Iveco	Eurocargo	✓	✓
Iveco	Eurocargo Tector	✓	✓
Iveco	Eurocargo Tector Restyling	✓	✓
Iveco	Eurocargo Tector Restyling 4x4	✓	✓
MAN	TGL	✓	–
MAN	TGM	✓	–
MAN	TGS	✓	–
MAN	TGX	✓	–
Mercedes-Benz	Atego	✓	–
Mercedes-Benz	Actros	✓	–
Mercedes-Benz	Axor	✓	–
Mercedes-Benz	Antos	✓	–
Isuzu	NPR / NKR / NQR	✓	✓
Isuzu	N-Series	–	✓
Fuso	Canter	–	✓

Note: Availability depends on year of manufacture, chassis, axle design, suspension variant, and gross vehicle weight.

Typical Applications

Auxiliary air springs are particularly suitable for:

• Distribution trucks
• Construction vehicles
• Municipal vehicles
• Tow trucks
• Truck-based RVs
• Workshop vehicles
• Service vehicles
• Vehicles with trailer operation
• Vehicles with heavy continuous loads

Your truck not listed?

The table shows only a fraction of the available vehicles. Auxiliary air suspension systems are also available for numerous other trucks, special vehicles, RVs, and commercial vehicles.

For vehicle inspection, we absolutely require:

• Vehicle identification number (FIN / VIN)
• Manufacturer
• Model
• Year of manufacture
• Gross vehicle weight

Additionally, we need photos of the axle

Please send images from multiple perspectives:

• Overall view of the axle
• View from the front
• View from the rear
• View from the left
• View from the right
• Detail images of the leaf springs
• Detail images of the spring mounts
• Detail images of the area where the air spring is to be mounted

The VIN alone is not always sufficient. Depending on the chassis, body builder, or special equipment, additional photos are necessary to clearly determine the appropriate auxiliary air spring system.

Frequently Asked Questions

Do auxiliary air springs increase the permissible payload?

Auxiliary air springs improve driving behavior, ride comfort, and vehicle attitude. The permissible axle and gross vehicle weights are determined by the vehicle documents and legal regulations.

Can the air pressure be adjusted?

Yes. The air pressure can be individually adjusted depending on the load and application.

Can auxiliary air springs be retrofitted?

Yes. Vehicle-specific retrofit systems are available for many trucks and commercial vehicles.

Are auxiliary air springs maintenance-intensive?

Auxiliary air springs are considered low-maintenance. Regular visual inspections and checking the air pressure are recommended.

Consultation & Inquiry

Are you unsure which auxiliary air suspension is suitable for your truck?

Send us the VIN and meaningful photos of the axle. We will check availability and recommend the right system for you.

Horvath 4x4

📞 +43 680 207 29 60

📧 info@4x4styling.com

🌐 4x4styling.com

Your specialist for auxiliary air springs, reinforcement springs, lift kits, and suspension solutions.