301.01.0014 Unloader Valve for Volvo Trucks

What does an unloader valve do?

This unloader valve serves as a critical component within the pneumatic brake system, regulating air pressure to ensure optimal performance. Built with heavy-duty grade materials, it maintains system integrity by managing air release at a precise cut-out pressure of 12.5 BAR / 0.2 BAR. This ensures the compressor operates efficiently and prevents over-pressurization within the air lines.

Compatible Volvo models and engines

The component is specifically engineered for a wide range of Volvo models, including the F7, F10, F12, FL10, FL12, N10, N12, NL10, NL12, B10B, B10M, and B12 engines such as TD70, TD100, TD120, D10A, and D12A. It is also compatible with DAF, Irisbus, Iveco, Kenworth, Mack, and Peterbilt trucks.

Installation and technical specifications

For professional installation, technicians should verify the port configurations: Port 1 and Port 21 feature M22x1.5 threads, while Port 23 utilizes an M12x1.5 thread. Regular inspection of the recycle valve and port seals is recommended during routine brake system maintenance to prevent pressure drops or leaks.

Maintenance and system reliability

Maintaining the correct pressure threshold is vital for the safety of the entire air system. Using high-strength components helps prevent premature failure in demanding commercial vehicle environments.

OE cross-reference

301.01.0014 (Unloader Valve) is the equivalent of the DAF, Irisbus, Iveco, Kenworth, Mack, Meritor, Peterbilt, Volvo and WABCO OE numbers. This part directly replaces DAF OE number 1519346. It also replaces Irisbus OE number 98412323, Iveco OE numbers 98412322, 99433866, Kenworth OE number S9753031410, Mack OE number 63009753031410, Meritor OE number S9753031410, Peterbilt OE number S9753031410, Volvo OE number WAB9753031410 and WABCO OE number 9753031410.