301.02.0073 VOLVO Complete, Air Dryer Valve

This high-strength component serves a critical role in the pneumatic brake system of heavy commercial vehicles, ensuring efficient air filtration and moisture removal. Designed to maintain optimal system pressure and prevent contamination, this complete air dryer valve provides consistent performance under heavy-duty operational demands.

301.02.0073 is the OE-equivalent of the WABCO 432 410 087 0 complete, air dryer valve used in DAF, MAN, SCANIA, and VOLVO vehicle systems. This part is engineered to meet the strict requirements of major manufacturers including SCANIA (1932679) and ensures seamless compatibility with high-pressure braking architectures.

Technical specifications include a 24 V heater system and a standard operating pressure of 12 BAR. The assembly features specific port sizing: Port 1 and Port 21 utilize M22x1,5 threads, while Port 22 and Port 4/23 utilize M12x1,5 threads. Workshop technicians should verify these thread dimensions and the electrical connection before installation to ensure a perfect fit within the pneumatic circuit.

Maintaining the air dryer assembly is essential for preventing moisture buildup in the brake system. Regular inspection of the ports and the heater functionality helps prevent system failures during long-haul operations.