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301.03.0026 Air Dryer Valve, Air Dryer Valves
Vaden Part No.

301.03.0026

Air Dryer Valve, Air Dryer Valves

EAN 8699031079899

High-performance air dryer valve compatible with Knorr-Bremse systems. Features M22x1,5 and M12x1,5 ports for heavy commercial vehicle brake safety.

Description
Heater: -----  Port 1: M22x1,5  Port 21: M22x1,5  Pressure: 7,8 BAR  Port 22: M12x1,5  Port 4/23: M12x1,5 
Replaces KNORR-BREMSE II30445 KNORR-BREMSE II30445AT KNORR-BREMSE II30445N00 KNORR-BREMSE II31478N50 +1

Technical Specifications

6
SpecValue
Heater-----
Port 1M22x1,5
Port 21M22x1,5
Pressure7,8 BAR
Port 22M12x1,5
Port 4/23M12x1,5

Cross-Reference

5
BrandPart numberTypeNotes
KNORR-BREMSE II30445
KNORR-BREMSE II30445AT
KNORR-BREMSE II30445N00
KNORR-BREMSE II31478N50
KNORR-BREMSE LA 8231

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 301.03.0026 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 (II30445, II30445AT, II30445N00, II31478N50, LA8231) 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 manages the air flow within the pneumatic system to help remove moisture and contaminants, protecting the braking system from corrosion.
What are the port specifications for this component?
The unit is equipped with M22x1,5 ports (Port 1 and Port 21) and M12x1,5 ports (Port 22 and Port 4/23).
What is the rated operating pressure?
This air dryer valve is designed for operation at a pressure of 7,8 BAR.
Which systems is this component compatible with?
This part is engineered to be compatible with Knorr-Bremse systems used in heavy commercial vehicles.
What are the OE reference numbers of this part?
301.03.0026 directly replaces Knorr-Bremse OE numbers II30445, II30445AT, II30445N00, II31478N50, LA8231.

Vehicle Applications

1
MakeModels
KNORR-BREMSE —