655687 Levelling Valve for Alexander Dennis

What does a levelling valve do?

This levelling valve serves as a critical component within the air suspension system, regulating pneumatic airflow to maintain the correct vehicle height. By responding to changes in load, it ensures the stability and safety of the chassis during operation. Built with high-strength components, it is designed to withstand the rigorous demands of heavy commercial vehicle use.

Vehicle and system compatibility

This component is specifically compatible with Alexander Dennis vehicles. It functions as a reliable replacement for original suspension control units, maintaining the intended ride height and load distribution for the chassis.

Installation and maintenance guidance

Installation requires precise alignment of the lever mechanism, which operates within a Ø 6 - 315 mm range. Technicians should verify that all M12x1,5 ports are properly seated and that the operating pressure does not exceed the maximum limit of 13 bar during system testing.

System maintenance and troubleshooting

Regular inspection of the lever linkage and seals is recommended to prevent air leaks or height fluctuations. Proper maintenance ensures long-term reliability within the pneumatic suspension circuit.

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 655687.