303.02.0008 4-circuit protection valve

The pneumatic stability of a heavy commercial vehicle depends on precise air distribution within the brake system. This 4-circuit protection valve is engineered to maintain pressure across multiple circuits, ensuring reliable operation under high-stress conditions. Designed with high-strength components, it provides a robust solution for professional workshop technicians and fleet managers seeking long-term reliability.

This specific component is the OE equivalent of the DAF 1519373 and IVECO 97166254 parts used in heavy-duty vehicles. The 303.02.0008 product is fully compatible with DAF, IVECO, MAN, and KNORR-BREMSE systems. It features specific port configurations including Port 1 (M22x1,5) and four M16x1,5 ports to ensure exact fitment. The device operates at a standard pressure of up to 20 BAR to maintain system integrity.

For technical maintenance, technicians should verify the opening pressures (approximately 6.9 to 7 BAR) and closing pressures (4.5 BAR) to ensure the valve is performing within the specified thresholds. Regular inspection of the port connections and seals is recommended to prevent pneumatic leaks in the braking circuit.

Whether you are performing a routine overhaul or a system repair, this part meets the rigorous demands of the heavy commercial vehicle sector. Consult your authorized distributor for further technical support.