301.01.0011 Volvo Unloader Valve Equivalent

What does an unloader valve do?

This unloader valve plays a critical role in the pneumatic brake system by regulating air pressure within the circuit. It ensures that the compressor stops delivering air once the required pressure threshold is reached, preventing system over-pressurization and ensuring long-term component durability.

Vehicle and engine compatibility

This component is specifically designed for a wide range of Volvo vehicles, including the F10, F12, F7, FL10, FL12, N10, N12, NL10, NL12, B10B, B10M, and B12 models. It is also compatible with Volvo engines such as TD100, TD101, TD102, TD120, TD121, TD122, TD70, TD71, TD103, D10A, TD123, and D12A. Additionally, it is fitted to DAF, Iveco, MAN, Mercedes-Benz, and Renault Trucks.

Technical specifications and installation

The unit features M22x1,5 port configurations and a cut-out pressure of 9,5 BAR / 0,2 BAR. Technicians should verify the installation of the plug and ensure all connections are secure to maintain optimal pneumatic performance. Proper maintenance of the air system helps prevent premature wear on other pneumatic components.

System maintenance

Check the compatibility list.

OE cross-reference

301.01.0011 (Unloader Valve) is the equivalent of the DAF, Evobus, Faun, Ikarbus, Iveco, Mack, MAN, Mercedes-Benz, Renault Trucks, Volvo and WABCO OE numbers. This part directly replaces DAF OE numbers 1518281, 1518282. It also replaces Evobus OE number 8283699000, Faun OE numbers 1612023, 1612036, Ikarbus OE numbers 1612023S, 1612036S, Iveco OE numbers 04700994, 04775735, 04775736, 04775737, 04775738, 04784409, 04784410, 04826204, 04842611, 24772037, 42085760, Mack OE number 63009753030810, MAN OE numbers 81521016022, 81521016073, 81521016081, Mercedes-Benz OE numbers 0014312206, 0014312226, 0014314106, 0014314206, 0014314306, 0014318206, 0014319906, 0024313506, Renault Trucks OE numbers 5000241771, 5010013400, 5010067854, Volvo OE number 08052340 and WABCO OE number 9753030810.