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301.03.0041 KNORR-BREMSE Complete, Air Dryer Valve

301.03.0041

Summary

This complete air dryer valve assembly features a 24 V heater and is engineered for high-pressure stability at 10 BAR. Technical specifications include Port 1 (M22x1,5), Port 21 (M22x1,5), Port 22 (M12x1,5), and Port 4/23 (M12x1,5) to ensure precise pneumatic control in heavy commercial vehicle brake systems.

EAN Code8699031080048
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Description

This high-strength component serves as a critical element within the pneumatic brake system, ensuring stable air pressure regulation and moisture control. Designed for heavy-duty applications, the unit provides reliable operation under constant pressure cycles to maintain system integrity.

301.03.0041 is the OE-equivalent of the KNORR-BREMSE II31477, II31477N50, and LA 8256 components used in professional heavy commercial vehicle systems. This assembly is specifically engineered to meet the rigorous demands of the KNORR-BREMSE hardware architecture, ensuring seamless integration with existing pneumatic lines.

The assembly is equipped with a 24 V heater and features specific port configurations including M22x1,5 and M12x1,5 threads to facilitate precise installation. Workshop technicians should verify port sizes and pressure ratings—specifically the 10 BAR operating threshold—during assembly to ensure optimal performance and prevent leaks in the air drying process.

Maintenance of this valve is essential for preventing moisture buildup in the braking system. Regular inspection of the port seals and the heater functionality ensures long-term reliability for heavy commercial vehicle fleets and service centers.

Technical Specifications

Heater24 V
Port 1M22x1,5
Port 21M22x1,5
Pressure10 BAR
Port 22M12x1,5
Port 4/23M12x1,5

Other OEMs

KNORR-BREMSE

  • II31477
  • II31477N50
  • LA 8256
  • LA8256

Related Products

Vehicles Used

BrandModelEngine
KNORR-BREMSE

FAQ

What are the compatible OEM numbers for this part?
This unit is compatible with KNORR-BREMSE codes II31477, II31477N50, and LA 8256.
What is the operating pressure and voltage for this valve?
The component is designed for a 10 BAR operating pressure and utilizes a 24 V heater.
Which thread sizes are used in this assembly?
The assembly includes Port 1 (M22x1,5), Port 21 (M22x1,5), Port 22 (M12x1,5), and Port 4/23 (M12x1,5).
Is this part suitable for heavy commercial vehicles?
Yes, it is a specialized component designed specifically for heavy commercial vehicle brake systems.
Does this part require specific tools for installation?
Installation requires standard workshop tools capable of handling M22x1,5 and M12x1,5 thread fittings.