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301.03.0025 Air Dryer Valve, Brake System

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301.03.0025 Compatible Air Dryer Valve

301.03.0025

Summary

This air dryer valve is designed for heavy commercial vehicle brake systems. It features a 24 V heater, M22x1.5 and M12x1.5 port configurations, and is rated for 10 BAR pressure to ensure reliable moisture removal and system protection. Equivalent to OE Knorr-Bremse II30444.

Product identifiers
EAN Code8699031079882
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Compatible OEM Codes

  • KNORR-BREMSE
    • LA 8230
    • II30444N50
    • II30444ES
    • II30444

Description

What does an air dryer valve do?

This air dryer valve plays a critical role in the pneumatic brake system by removing moisture and contaminants from the compressed air. By preventing water accumulation, it protects downstream components from corrosion and freeze-up, ensuring consistent braking performance for heavy commercial vehicles.

System compatibility

This component is designed to be compatible with Knorr-Bremse systems. It operates effectively within air brake circuits to maintain high-strength performance under demanding conditions.

Technical specifications

The unit is equipped with a 24 V heater to prevent freezing in cold climates and features specific port dimensions, including M22x1.5 and M12x1.5 connections. It is rated for a working pressure of up to 10 BAR.

Maintenance guidance

Regular inspection of the valve and its connections is recommended to prevent system contamination. Consult your authorized distributor for installation guidance.

OE cross-reference

301.03.0025 (Air Dryer Valve Air Dryer Valves) is the equivalent of the Knorr-Bremse OE numbers. This part directly replaces Knorr-Bremse OE numbers II30444, II30444ES, II30444N50, LA8230.

Technical Specifications

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

Other OEMs

KNORR-BREMSE

  • LA8230
  • LA 8230
  • II30444N50
  • II30444ES
  • II30444

Related Products

Repair Kits

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
KNORR-BREMSE

FAQ

What is the primary function of this air dryer valve?
It removes moisture and contaminants from the compressed air to protect the brake system from corrosion and freezing.
Is this component compatible with Knorr-Bremse systems?
Yes, this air dryer valve is designed to be compatible with Knorr-Bremse systems.
What are the technical port specifications?
The unit features M22x1.5 ports (Port 1 and 21) and M12x1.5 ports (Port 22 and 4/23).
Does this valve include a heating element?
Yes, this model is equipped with a 24 V heater to assist in preventing moisture freeze-up.
What are the OE reference numbers of this part?
301.03.0025 directly replaces Knorr-Bremse OE numbers II30444, II30444ES, II30444N50, LA8230.