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301.03.0064 Air Dryer Valve, Brake System

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301.03.0064 Compatible Air Dryer Valve

301.03.0064

Summary

This heavy-duty air dryer valve features a 24 V heater and specific port configurations, including M22x1,5 and M12x1,5 sizes. Designed for reliable performance in air brake systems, it ensures moisture removal to protect critical pneumatic components. Compatible with Knorr-Bremse systems. Equivalent to OE Knorr-Bremse I87501.

Product identifiers
EAN Code8699031080277
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Compatible OEM Codes

  • KNORR-BREMSE
    • LA 6210
    • K028021
    • II30448
    • I87501RP
    • I87501003
    • I87501

Description

What does an air dryer valve do?

This air dryer valve is a vital component for the health and safety of the pneumatic brake system. By effectively removing moisture and contaminants from the compressed air, it protects downstream components from corrosion and prevents freeze-up during cold operations. This ensures consistent braking performance and reduces long-term maintenance requirements for heavy commercial vehicles.

Technical specifications and fitment

The unit is engineered to work within complex pneumatic circuits, featuring a 24 V heater to prevent ice formation and specific port dimensions such as M22x1,5 and M12x1,5 to ensure precise fitment. It is designed to be compatible with Knorr-Bremse systems.

Installation and maintenance

For workshop technicians performing maintenance, verifying the port sizes and electrical connections is essential for correct installation. Regular inspection of the valve and its associated lines helps maintain optimal system pressure and prevents air leaks that could compromise braking efficiency.

System reliability

Maintaining a clean air supply is critical for the longevity of the entire brake system. Utilizing high-strength components ensures that the valve can withstand the pressure fluctuations typical in heavy-duty applications.

OE cross-reference

301.03.0064 (Air Dryer Valve Air Dryer Valves) is the equivalent of the Knorr-Bremse OE numbers. This part directly replaces Knorr-Bremse OE numbers I87501, I87501003, I87501RP, II30448, K028021, LA6210.

Technical Specifications

Technical Specifications
Heater24 V
Port 1M22x1,5
Port 21M22x1,5
Pressure8,1 BAR
Port 22M12x1,5
Port 4/23M12x1,5

Other OEMs

KNORR-BREMSE

  • LA6210
  • LA 6210
  • K028021
  • II30448
  • I87501RP
  • I87501003
  • I87501

Related Products

Repair Kits

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 compressed air to protect the braking system from corrosion and freezing.
Which electrical specification does this valve require?
This specific model is equipped with a 24 V heater to ensure operation in low-temperature environments.
What are the port sizes for this component?
The unit features M22x1,5 ports (Port 1 and Port 21) and M12x1,5 ports (Port 22 and Port 4/23).
Is this part compatible with Knorr-Bremse systems?
Yes, this component is designed to be compatible with Knorr-Bremse systems.
What are the OE reference numbers of this part?
301.03.0064 directly replaces Knorr-Bremse OE numbers I87501, I87501003, I87501RP, II30448, K028021, LA6210.