301.01.0008 Volvo Unloader Valve Equivalent

What does an unloader valve do?

This unloader valve serves as a critical component within the air brake system, managing pressure regulation to ensure consistent pneumatic performance. Built with high-strength components, it maintains system integrity under heavy-duty operating conditions by regulating air release at precise thresholds.

Compatible Volvo models and engines

This part is specifically engineered for various Volvo models including the F10, F12, FL10, and FL12 series, covering engines such as TD100, TD120, and D10A. It is also compatible with Volvo N10, N12, NL10, NL12, B10B, B10M, and B12 models. Additionally, this component is fitted to Scania, DAF, Mack, and Kenworth trucks.

Installation and technical specifications

The unit features specific port configurations including M22x1.5 and M12x1.5 connections to ensure precise fitment. Technicians should verify the cut-out pressure of 8.1 BAR / 0.2 BAR during installation to maintain optimal pneumatic cycles and prevent system overpressure.

Maintenance and troubleshooting

Regular inspection of the recycle valve functionality is recommended to prevent air leaks in the braking circuit. For reliable service in heavy commercial vehicle fleets, always consult your authorized distributor.

OE cross-reference

301.01.0008 (Unloader Valve) is the equivalent of the Case, DAF, Faun, Freightliner, John Deere, Kenworth, Mack, Meritor, Neoplan, Nissan Ud Truck, Scania, VDL, Volvo and WABCO OE numbers. This part directly replaces Case OE number T103977. It also replaces DAF OE numbers 100587, 658098, Faun OE number 1614594, Freightliner OE number TDAS9753030600, John Deere OE number AL110648, Kenworth OE number S9753030600, Mack OE number 63009753030600, Meritor OE number S9753030600, Neoplan OE number 1102441544303, Nissan Ud Truck OE number 475409X400, Scania OE number 2090400, VDL OE numbers 190409, 20190409, Volvo OE numbers 12748716, 6778243 and WABCO OE number 9753030600.