Skip to content
301.03.0081 Air Dryer Valve, Brake System

2638 Views Updated

301.03.0081 Compatible Air Dryer Valve for Knorr-Bremse

301.03.0081

Summary

This air dryer valve is engineered for heavy commercial vehicle brake systems. It features a 24 V heater, M22x1.5 and M12x1.5 port configurations, and operates at 12.3 BAR pressure to ensure reliable moisture separation and system protection. Equivalent to OE Knorr-Bremse K024634.

Product identifiers
EAN Code8699031080529
Ready to Order
Get Information
Share
WhatsApp Facebook X LinkedIn

Compatible OEM Codes

  • KNORR-BREMSE
    • LA 9034
    • K024634N50
    • K024634N01
    • K024634N00
    • K024634

Description

What does an air dryer valve do?

This air dryer valve plays a critical role in the pneumatic brake system by managing air quality and moisture removal. By effectively filtering out contaminants, it protects downstream components from corrosion and prevents freeze-up during operation. Using high-strength components ensures that the valve maintains consistent braking performance under heavy duty conditions.

Compatibility and technical specifications

This component is designed to be compatible with Knorr-Bremse systems. It features a 24 V heater to prevent moisture accumulation in cold climates and includes specific port sizes such as M22x1.5, M12x1.5, and M10x1 to ensure precise integration into the existing air circuit.

Installation and maintenance guidance

For workshop technicians, verifying the port dimensions—including the M22x1.5 and M16x1.5 VOSS connections—is essential during installation. Ensuring the 12.3 BAR pressure rating matches the system requirements will help maintain optimal pneumatic stability and prevent premature wear of the valve internals.

System reliability and troubleshooting

Regular inspection of the valve and its connections helps prevent air leaks and ensures the continuous removal of moisture from the air supply, maintaining long-term reliability for heavy commercial vehicles.

OE cross-reference

301.03.0081 (Air Dryer Valve Air Dryer Valves) is the equivalent of the Knorr-Bremse OE numbers. This part directly replaces Knorr-Bremse OE numbers K024634, K024634N00, K024634N01, K024634N50, LA9034.

Technical Specifications

Technical Specifications
Heater24 V
Port 1M22x1,5
Port 2M12x1,5
Port 21Ø20,5
Pressure12,3 BAR
Port 22M16x1,5 VOSS
Port 23M22x1,5
Port 24M22x1,5 VOSS
Port 25M10x1

Other OEMs

KNORR-BREMSE

  • LA9034
  • LA 9034
  • K024634N50
  • K024634N01
  • K024634N00
  • K024634

Related Products

Repair Kits

Used In

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
KNORR-BREMSE

FAQ

What is the function of this air dryer valve?
The valve removes moisture and contaminants from the compressed air, protecting the vehicle's pneumatic brake system from corrosion and freezing.
What are the key technical specifications of this part?
This valve features a 24 V heater, multiple port sizes including M22x1.5 and M12x1.5, and is rated for a pressure of 12.3 BAR.
Which brands is this component compatible with?
This specific model is designed to be compatible with Knorr-Bremse systems in heavy commercial vehicle applications.
How can I identify if an air dryer valve needs replacement?
Technicians should look for signs of moisture in the air lines, frequent purging, or pressure irregularities that indicate the valve is not separating contaminants effectively.
What are the OE reference numbers of this part?
301.03.0081 directly replaces Knorr-Bremse OE numbers K024634, K024634N00, K024634N01, K024634N50, LA9034.