301.02.0069 Air Dryer Valve — Volvo Compatible

What does an air dryer valve do?

This air dryer valve plays a critical role in the pneumatic brake system by managing moisture and particulate removal to ensure dry air delivery. Built with high-strength components, it maintains system integrity under demanding heavy commercial vehicle operating conditions.

Vehicle and engine compatibility

This component is compatible with Volvo models including FH12, FH13, FH16, FM series, and VNL, as well as Renault Trucks Kerax and Magnum. It also fits Mack Granite and Pinnacle trucks equipped with MP7 or MP8 engines. The valve is designed to work seamlessly within systems requiring 13 BAR pressure and 24 V electrical specifications.

Installation and technical specifications

For correct installation, technicians should verify the port dimensions: Port 1 is M22x1.5, Port 4 is M12x1.5, Port 12 is M16x1.5, and Port 21 is M22x1.5. Ensuring these thread sizes match the existing pneumatic lines is essential for preventing leaks during service.

Maintenance and troubleshooting

Regular inspection of the valve helps prevent moisture buildup in the air brake lines. If the system shows signs of excessive moisture or improper pressure regulation, consult your authorized distributor to check compatibility.

OE cross-reference

301.02.0069 (Air Dryer Valve Air Dryer Valves) is the equivalent of the Volvo and WABCO OE numbers. This part directly replaces Volvo OE numbers 20466522, 20700794, 20873849, 20884103, 21398254, 21480094, 21620172. It also replaces WABCO OE number 4324250080.