6556877 Levelling Valve for Alexander Dennis

What does a levelling valve do?

This levelling valve plays a critical role in the pneumatic suspension system by maintaining consistent vehicle height. It functions through a mechanical lever movement that controls pneumatic airflow, ensuring the air bellows are properly balanced under varying loads.

Vehicle compatibility

This component is specifically compatible with Alexander Dennis vehicles. It is engineered to withstand heavy-duty operating conditions, maintaining precise control over the air suspension geometry even under high-pressure scenarios.

Technical specifications and installation

The unit features M12x1,5 ports and a lever diameter ranging from Ø 6 to 315 mm. Technicians should ensure the operating direction is correctly aligned and that all connections are secure to maintain an optimal 13 BAR operating pressure during installation.

Maintenance and inspection

Regular inspection of the lever linkage and port seals is recommended to prevent pressure loss and ensure stable chassis leveling. Consult your authorized distributor for fitment verification.

OE cross-reference

303.07.0001 (Levelling Valve) is the equivalent of the Alexander Dennis OE number. This part directly replaces Alexander Dennis OE number 6556877.