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301.03.0025 Air Dryer Valve, Air Dryer Valves
Vaden Part No.

301.03.0025

Air Dryer Valve, Air Dryer Valves

EAN 8699031079882

High-performance air dryer valve for brake systems. Features 24 V heater and M22x1.5 ports. Check the compatibility list.

Description
Heater: 24 V  Port 1: M22x1,5  Port 21: M22x1,5  Pressure: 10 BAR  Port 22: M12x1,5  Port 4/23: M12x1,5 
Replaces KNORR-BREMSE II30444 KNORR-BREMSE II30444ES KNORR-BREMSE II30444N50 KNORR-BREMSE LA 8230

Technical Specifications

6
SpecValue
Heater24 V
Port 1M22x1,5
Port 21M22x1,5
Pressure10 BAR
Port 22M12x1,5
Port 4/23M12x1,5

Cross-Reference

4
BrandPart numberTypeNotes
KNORR-BREMSE II30444
KNORR-BREMSE II30444ES
KNORR-BREMSE II30444N50
KNORR-BREMSE LA 8230

All OEM part numbers and brand names are used for reference only. Vaden is not affiliated with, endorsed by, or sponsored by these manufacturers.

Repair Kits

1

Description

VADEN ORIGINAL 301.03.0025 is a spare part in the Air Dryer Valve, Air Dryer Valves group produced for heavy commercial vehicles (trucks, buses and tractor units). It is manufactured as an OE-quality equivalent that matches the original KNORR-BREMSE (II30444, II30444ES, II30444N50, LA8230) references exactly. Choosing the right equivalent part is essential for the vehicle's safety and uninterrupted operation.

Frequently Asked Questions

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.

Vehicle Applications

1
MakeModels
KNORR-BREMSE —