81521026028 Compatible Air Dryer Valve for MAN

What does an air dryer valve do?

This air dryer valve plays a critical role in the pneumatic brake system by removing moisture and contaminants from the compressed air. By preventing water accumulation, it protects downstream components from internal corrosion and prevents freeze-up during cold weather operation. This ensures consistent braking performance and long-term system reliability for heavy commercial vehicles.

Vehicle compatibility and technical fitment

Designed specifically for MAN vehicles, this component integrates seamlessly into the existing air management architecture. It features a 24 V heater to maintain optimal operating temperatures and is equipped with M22x1,5 and M12x1,5 port configurations to ensure precise fitment within the air brake circuit.

Installation and maintenance guidance

For workshop technicians performing maintenance, this valve is essential for maintaining system integrity. When inspecting the air dryer assembly, ensure all ports are clear and check that the 8,1 BAR pressure rating aligns with the vehicle's pneumatic requirements to prevent premature wear of other brake components.

OE cross-reference

301.02.0040 (Air Dryer Valve Air Dryer Valves) is the equivalent of the MAN OE number. This part directly replaces MAN OE number 81521026028.