301.03.0006 Mercedes-Benz Compatible Air Dryer Valve

What does an air dryer valve do?

This air dryer valve serves as a critical component in the pneumatic brake system of heavy commercial vehicles. It manages the separation of moisture and contaminants from compressed air, ensuring that the air supply remains clean for the entire braking circuit. By maintaining high-strength component integrity, it helps prevent corrosion and premature wear in downstream pneumatic valves.

Vehicle compatibility and fitment

This part is designed for compatibility with Mercedes-Benz vehicles and meets the rigorous demands of heavy commercial service. It is specifically engineered to function effectively within high-pressure environments, supporting the reliable operation of the air processing unit during long-haul transport.

Installation and maintenance guidance

For professional installation, technicians should verify the port specifications: Port 1 is M22x1.5, Port 21 is M16x1.5 VOSS, Port 22 is M16x1.5 VOSS, and Port 4/23 is M12x1.5. This component operates at a pressure rating of 12 BAR and should be checked during routine pneumatic system maintenance to ensure optimal airflow and moisture removal.

System reliability and inspection

Regular inspection of the valve helps prevent moisture buildup that could compromise braking performance. Selecting a high-quality replacement ensures continued reliability for the vehicle's pneumatic systems.

OE cross-reference

301.03.0006 (Air Dryer Valve Air Dryer Valves) is the equivalent of the Knorr-Bremse and Mercedes-Benz OE numbers. This part directly replaces Knorr-Bremse OE numbers II19213N50, II19216, LA6268, LA8205. It also replaces Mercedes-Benz OE numbers 0014314315, 0014315215.