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301.01.0046 Unloader Valve, Brake System
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301.01.0046 Unloader Valve for DAF and Mercedes-Benz

301.01.0046

Summary

This unloader valve is designed for heavy commercial vehicle brake systems, featuring M22x1,5 ports and a cut-out pressure of 8,1 BAR / 0,2 BAR. It is compatible with Mercedes-Benz, DAF, and Evobus vehicles to ensure reliable air pressure regulation. Equivalent to OE DAF 285768, Evobus 8285106000 and Mercedes-Benz 0024311506.

Product identifiers
EAN Code8683457011311
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Compatible OEM Codes

  • MERCEDES BENZ
    • 002 431 87 06
    • 002 431 52 06
    • 002 431 46 06
    • 002 431 15 06
  • WABCO
    • 975 300 750 0
  • EVOBUS
    • 8285106000
  • DAF
    • 285768

Description

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 functions by monitoring pressure levels and automatically releasing air once the specified threshold is reached, ensuring the system operates within safe parameters. The component is constructed from high-strength components to withstand heavy-duty operating conditions.

Vehicle compatibility and fitment

This part is specifically engineered for compatibility with Mercedes-Benz, DAF, and Evobus vehicles. It is also suitable for use in various heavy commercial vehicle applications requiring precise pressure management. The unit features M22x1,5 ports and a specialized M22x1,5 check valve port to maintain system integrity.

Installation and technical specifications

For optimal performance, technicians should verify the cut-out pressure of 8,1 BAR / 0,2 BAR during installation. Ensuring that all ports are correctly seated is vital for preventing leaks in the pneumatic circuit. Regular inspection of the inflation valve status is recommended during routine maintenance intervals to ensure continued reliability.

Maintenance guidance

Consult your authorized distributor for fitment verification.

OE cross-reference

301.01.0046 (Unloader Valve) is the equivalent of the DAF, Evobus, Mercedes-Benz and WABCO OE numbers. This part directly replaces DAF OE number 285768. It also replaces Evobus OE number 8285106000, Mercedes-Benz OE numbers 0024311506, 0024314606, 0024315206, 0024318706 and WABCO OE number 9753007500.

Technical Specifications

Technical Specifications
Port 1M22x1,5
Port 4G 1/4"
Port 21M22x1,5(CHECK VALVE)
Cut-Out Pressure8,1 BAR / 0,2 BAR
Inflation ValveOK

Other OEMs

DAF

  • 285768

EVOBUS

  • 8285106000

MERCEDES BENZ

  • A0024318706
  • A0024315206
  • A0024314606
  • A0024311506
  • 002 431 87 06
  • 002 431 52 06
  • 002 431 46 06
  • 002 431 15 06

WABCO

  • 9753007500
  • 975 300 750 0

Related Products

Repair Kits

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
DAF
EVOBUS
MERCEDES BENZ
WABCO

FAQ

What is the function of this unloader valve?
It acts as an air pressure relief valve within the brake system, monitoring pressure and releasing air at a specific threshold to regulate the pneumatic circuit.
Which vehicles is this part compatible with?
This component is compatible with Mercedes-Benz, DAF, and Evobus commercial vehicles.
What are the technical port specifications?
The unit features M22x1,5 ports and includes an M22x1,5 check valve port to ensure secure pneumatic connections.
What is the operating cut-out pressure?
The specified cut-out pressure for this component is 8,1 BAR / 0,2 BAR.
What are the OE reference numbers of this part?
301.01.0046 directly replaces DAF OE number 285768. It also replaces Evobus OE number 8285106000, Mercedes-Benz OE numbers 0024311506, 0024314606, 0024315206, 0024318706 and WABCO OE number 9753007500.