303.03.0016 Levelling Valve for Volvo and Renault Trucks

What does a cab suspension levelling valve do?

This cab suspension levelling valve is a critical component within the pneumatic suspension system of heavy commercial vehicles. It functions by regulating air pressure in the cab bellows, ensuring the cabin maintains a consistent height and stable position during operation. By utilizing high-strength components, this valve provides reliable performance under heavy-duty service conditions.

Vehicle and engine compatibility

This part is compatible with Volvo models including FH series (FH12, FH13, FH16), FM series (FM10, FM11, FM12, FM13), FMX, NH12, VHD, VNL, B11R, and B13R engines. It is also suitable for Renault Trucks models such as Kerax, Magnum, and Premium. Additionally, it fits Mack Granite and Pinnacle trucks equipped with MP7 or MP8 engines.

Installation and maintenance guidance

For correct installation, technicians should verify the Ø6 port sizes and the 70 mm lever length against the existing component. Ensuring proper alignment of the linkage rod is essential to prevent uneven cabin tilt or premature wear of the valve seals. Regular inspection of the air lines connected to these ports is recommended to maintain optimal system pressure.

Troubleshooting and replacement

Maintaining a stable cabin height is vital for driver comfort and vehicle stability. If the cabin appears tilted or fails to return to its original position after loading, this valve should be inspected for mechanical or pneumatic failure.

OE cross-reference

303.03.0016 (Cab Suspension Levelling Valve) is the equivalent of the Renault Trucks, Volvo and WABCO OE numbers. This part directly replaces Renault Trucks OE numbers 5010136105, 7420746460. It also replaces Volvo OE number 20746460 and WABCO OE number 4640070230.