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301.03.0055 KNORR-BREMSE Complete, Air Dryer Valve

301.03.0055

Summary

●Heater: ----- ●Port 1: M22x1,5 ●Port 21: M22x1,5 ●Pressure: 12,5 BAR ●Port 22: M12x1,5 ●Port 4/23: M12x1,5

EAN Code8699031080185
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Description

The complete air dryer valve is a critical component within the pneumatic braking system, ensuring the removal of moisture and contaminants to maintain stable air pressure. This heavy-duty grade part is engineered to provide consistent performance under demanding heavy commercial vehicle operating conditions.

301.03.0055 is the OE-equivalent of the KNORR-BREMSE II30446 Complete, Air Dryer Valve used in KNORR-BREMSE systems. This product is fully compatible with several technical references including II30446AT, II30446N04, II39740FN50, and LA 8232.

Designed for precise assembly, the unit features specific port dimensions such as M22x1,5 and M12x1,5 to ensure a leak-free fit within the air management circuit. Workshop technicians should verify the pressure rating of 12,5 BAR during installation to ensure optimal integration with existing pneumatic brake components and maintain system integrity.

Technical Specifications

Heater-----
Port 1M22x1,5
Port 21M22x1,5
Pressure12,5 BAR
Port 22M12x1,5
Port 4/23M12x1,5

Other OEMs

KNORR-BREMSE

  • II30446
  • II30446AT
  • II30446N04
  • II39740FN50
  • LA 8232
  • LA8232

Related Products

Vehicles Used

BrandModelEngine
KNORR-BREMSE

FAQ

What are the compatible OEM numbers for this air dryer valve?
This part is compatible with the following codes: II30446, II30446AT, II30446N04, II39740FN50, and LA 8232.
What is the operating pressure for this component?
The unit is designed to operate at a pressure of 12,5 BAR.
Which thread sizes are used in this part?
The part features Port 1 and Port 21 with M22x1,5 threads, and Port 22 and Port 4/23 with M12x1,5 threads.
Is this part suitable for heavy commercial vehicles?
Yes, it is specifically designed for heavy commercial vehicle pneumatic brake systems.
Does this part require a heater?
The technical specification for this specific SKU does not include a heater component.