8030222 Volvo B12 D12A Levelling Valve

What does a levelling valve do?

This levelling valve plays a critical role in maintaining the correct ride height and stability of the vehicle's air suspension system. By managing air pressure within the bellows, it ensures even load distribution and prevents chassis tilting during transit.

Vehicle and engine compatibility

Specifically designed for Volvo B12 models with D12A engines, this component is built to withstand demanding operating conditions. It functions within the suspension system to provide precise height adjustments, ensuring the vehicle maintains its intended posture regardless of load variations.

Technical specifications and installation

The unit features M12x1,5 port configurations (Port 1, Port 21, and Port 22) and a lever range of Ø 6 - 315 mm. It is engineered for an operating pressure of up to 13 BAR, making it suitable for heavy commercial vehicle applications where reliability is essential.

Maintenance and troubleshooting

To ensure proper function, technicians should inspect the lever linkage and port connections during routine maintenance. Regular checks of the air lines and valve movement can prevent uneven wear on suspension components.

OE cross-reference

303.07.0001 (Levelling Valve) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 8030222.