301.02.0081 Air Dryer Valve compatible with Volvo Trucks

What does an air dryer valve do?

This air dryer valve plays a critical role in the pneumatic brake system by managing air quality through moisture and particulate removal. Built with high-strength components, it maintains the integrity of the air supply to ensure consistent braking performance under heavy-duty conditions.

Vehicle and engine compatibility

The component is specifically engineered for compatibility with various Volvo models, including the FH16, FM12, and VNL series, as well as Renault Trucks Magnum. It is also fitted to PACCAR and Kässbohrer vehicles. This ensures that the air processing unit functions correctly within complex pneumatic circuits.

Installation and technical specifications

For proper installation, technicians should verify the port dimensions: Port 1 and Port 21 are M22x1.5, while Port 22 and Port 4/23 are M12x1.5. The unit operates at a pressure of 8.5 BAR and includes a 24 V heater to prevent freezing in cold climates. Check the compatibility list to ensure precise fitment.

Maintenance guidance

Regular inspection of the valve is recommended to prevent moisture buildup in the braking lines. Maintaining the integrity of this component helps avoid system corrosion and ensures long-term service reliability for fleet managers and workshop technicians alike.

OE cross-reference

301.02.0081 (Air Dryer Valve Air Dryer Valves) is the equivalent of the Kässbohrer, PACCAR, Volvo and WABCO OE numbers. This part directly replaces Kässbohrer OE number 82855490000. It also replaces PACCAR OE number 1528633, Volvo OE numbers 20410157, 20553336, 3951836 and WABCO OE number 4324101920.