301.02.0088 Compatible Air Dryer Valve — Scania & Ashok Leyland

What does an air dryer valve do?

This air dryer valve plays a critical role in the pneumatic brake system by removing moisture, oil, and contaminants from the compressed air supply. By ensuring a dry air stream, it protects downstream components like valves and brake chambers from corrosion and freezing, maintaining consistent braking performance in heavy commercial vehicles.

Vehicle compatibility and specifications

Designed for reliability, this component is compatible with Scania and Ashok Leyland vehicles. It integrates seamlessly into existing pneumatic circuits, featuring a 24 V heater to prevent moisture buildup in cold climates and specialized port sizes including M22x1.5 and M12x1.5 to ensure secure connections. Consult your authorized distributor for fitment details.

Installation and maintenance

For optimal performance, technicians should inspect the valve during regular brake system service intervals. Checking the integrity of the M22x1.5 VOSS ports and ensuring the electrical connections to the 24 V heater are secure will prevent system failures. Proper maintenance helps maintain the 8,3 BAR operating pressure required for efficient air processing.

System reliability

Regular replacement of air processing components helps avoid moisture-related damage in the pneumatic circuit.

OE cross-reference

301.02.0088 (Air Dryer Valve Air Dryer Valves) is the equivalent of the Ashok Leyland, Scania and WABCO OE numbers. This part directly replaces Ashok Leyland OE number 445332082. It also replaces Scania OE number 390854 and WABCO OE number 4324150130.