301.03.0051 Complete, Air Dryer Valve
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301.03.0051 KNORR-BREMSE Complete, Air Dryer Valve

301.03.0051

Summary

Heater: 12 V ● Port 1: M22x1,5 ● Port 21: M22x1,5 ● Pressure: 12 BAR ● Port 4/23: M16x1,5 VOSS. This complete air dryer valve is designed for high-pressure pneumatic systems requiring precise control and durability.

EAN Code8699031080147
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Description

The heavy-duty air dryer valve plays a critical role in maintaining the pneumatic integrity of the brake system by removing moisture and contaminants from the compressed air stream. This component is engineered with high-strength components to ensure consistent pressure regulation and long-term reliability in demanding heavy commercial vehicle environments.

301.03.0051 is the OE-equivalent of the KNORR-BREMSE II31738, II31738N50, and LA 8282 air dryer valves used in heavy commercial vehicle braking systems. It is fully compatible with KNORR-BREMSE pneumatic hardware and is designed to meet strict industrial standards for pressure stability and airflow efficiency.

For workshop technicians, this unit features a 12 V heater and specific port configurations including M22x1,5 and M16x1,5 VOSS connections to ensure seamless assembly. Regular maintenance of the air dryer system is essential to prevent moisture buildup and ensure the longevity of the entire pneumatic circuit. Proper installation with the correct torque on all ports is highly recommended during service intervals.

Technical Specifications

Heater12 V
Port 1M22x1,5
Port 21M22x1,5
Pressure12 BAR
Port 22-
Port 4/23M16x1,5 VOSS

Other OEMs

KNORR-BREMSE

  • II31738
  • II31738N50
  • LA 8282
  • LA8282

Related Products

Repair Kits

Vehicles Used

BrandModelEngine
KNORR-BREMSE

FAQ

Which OEM numbers is this product compatible with?
This product is a direct replacement for OE numbers II31738, II31738N50, and LA 8282.
What are the technical port specifications for this unit?
The unit features Port 1 and Port 21 as M22x1,5 and Port 4/23 as M16x1,5 VOSS.
Is this component suitable for heavy commercial vehicles?
Yes, it is designed specifically for heavy commercial vehicle brake systems requiring 12 V power.
What is the operating pressure for this air dryer valve?
The unit is designed to operate effectively at a pressure of 12 BAR.
Can this part be used in KNORR-BREMSE pneumatic systems?
Yes, it is fully compatible with KNORR-BREMSE systems using codes II31738, II31738N50, and LA 8282.