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301.03.0050 Air Dryer Valve, Brake System

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301.03.0050 Compatible Air Dryer Valve

301.03.0050

Summary

This high-strength air dryer valve is designed for heavy commercial vehicle air brake systems. It features a 12 V heater, M22x1.5 ports, and M16x1.5 VOSS connections, ensuring reliable moisture removal and system protection at 8.5 BAR pressure. Equivalent to OE Knorr-Bremse II33424N50.

Product identifiers
EAN Code8699031080130
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Compatible OEM Codes

  • KNORR-BREMSE
    • LA 8280
    • II36939N49
    • II36939
    • II33424N50

Description

What does an air dryer valve do?

This air dryer valve plays a critical role in maintaining the integrity of the pneumatic brake system by managing air quality and preventing moisture buildup. By regulating air flow and ensuring the removal of contaminants, it protects sensitive downstream components from corrosion and freezing, which is essential for heavy commercial vehicle safety.

System compatibility and specifications

The component is compatible with Knorr-Bremse systems and is engineered to function effectively within high-pressure environments. It features specific port configurations including M22x1.5 and M16x1.5 VOSS connections to ensure precise integration into the existing pneumatic circuit.

Installation and technical guidance

For workshop technicians performing maintenance, this unit includes a 12 V heater to prevent ice formation in cold climates. When inspecting the system, ensure all port connections are secure and the 8.5 BAR operating pressure is maintained to guarantee optimal performance during service intervals.

Maintenance and selection

Consult your authorized distributor to ensure this part meets the specific requirements of your vehicle's air brake configuration.

OE cross-reference

301.03.0050 (Air Dryer Valve Air Dryer Valves) is the equivalent of the Knorr-Bremse OE numbers. This part directly replaces Knorr-Bremse OE numbers II33424N50, II36939, II36939N49, LA8280.

Technical Specifications

Technical Specifications
Heater12 V
Port 1M22x1,5
Port 21M22x1,5
Pressure8,5 BAR
Port 22-
Port 4/23M16x1,5 VOSS

Other OEMs

KNORR-BREMSE

  • LA8280
  • LA 8280
  • II36939N49
  • II36939
  • II33424N50

Related Products

Repair Kits

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
KNORR-BREMSE

FAQ

What is the primary function of this air dryer valve?
The valve manages moisture and contaminants within the pneumatic system to prevent corrosion and freezing in the air brake lines.
Which systems is this component compatible with?
This part is designed to be compatible with Knorr-Bremse systems used in heavy commercial vehicles.
What are the technical port specifications?
The unit features M22x1.5 ports and M16x1.5 VOSS connections, designed for an operating pressure of 8.5 BAR.
Does this unit include a heating element?
Yes, this specific model is equipped with a 12 V heater to assist in preventing moisture freeze-up during cold operation.
What are the OE reference numbers of this part?
301.03.0050 directly replaces Knorr-Bremse OE numbers II33424N50, II36939, II36939N49, LA8280.