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301.07.0063 Pressure Limiting Valve, Brake System

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301.07.0063 Compatible Pressure Limiting Valve

301.07.0063

Summary

This high-strength pressure limiting valve is designed for air brake systems in heavy commercial vehicles. It features M16x1.5 ports, an 8.5 BAR inlet pressure, and an adjustment range of 4.0 to 8.0 BAR, ensuring precise pressure regulation for DAF and Mercedes-Benz trucks. Equivalent to OE DAF 0906782, Mercedes-Benz 0034318306 and WABCO 4750155120.

Product identifiers
EAN Code8683457011687
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Compatible OEM Codes

  • MERCEDES BENZ
    • 003 431 89 06
    • 003 431 83 06
  • WABCO
    • 475 015 512 0
  • DAF
    • 0906782

Description

What does a pressure limiting valve do?

This pressure limiting valve plays a critical role in the air brake system by regulating pneumatic pressure to ensure stable braking performance. Built with high-strength components, it utilizes a piston-and-spring mechanism to vent excess air when the set threshold is reached, preventing system overpressure and maintaining consistent brake application.

Vehicle and engine compatibility

The component is compatible with DAF and Mercedes-Benz heavy commercial vehicles. It is also suitable for various trucks and tractor units within these vehicle classes. This part is designed to meet the rigorous demands of professional workshop environments.

Installation and maintenance

For proper installation, technicians should verify that the M16x1.5 port connections are secure and that the system operates within the specified 4.0 to 8.0 BAR adjustment range. Maintaining clean air lines helps prevent premature wear of the internal spring mechanism.

System performance and troubleshooting

Regular inspections of the outlet pressure, which typically operates at 5.5 BAR ± 0.4 BAR, can help identify potential leaks or calibration shifts before they impact vehicle safety.

OE cross-reference

301.07.0063 (Pressure Limiting Valve) is the equivalent of the DAF, Mercedes-Benz and WABCO OE numbers. This part directly replaces DAF OE number 0906782. It also replaces Mercedes-Benz OE numbers 0034318306, 0034318906 and WABCO OE number 4750155120.

Technical Specifications

Technical Specifications
Port 1M16x1,5
Port 2M16x1,5
Inlet Pressure8,5 BAR
Adjustment Range4,0 …..8,0 BAR
Outlet Pressure5,5 BAR + 0,4 BAR
Safety Pressure8,0 BAR

Other OEMs

DAF

  • 0906782

MERCEDES BENZ

  • A0034318906
  • A0034318306
  • 0034318906
  • 0034318306
  • 003 431 89 06
  • 003 431 83 06

WABCO

  • 4750155120
  • 475 015 512 0

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
DAF
MERCEDES BENZ
WABCO

FAQ

What is the function of this pressure limiting valve?
It regulates air pressure within the braking system by venting excess air once a specific threshold is reached, ensuring safe and controlled braking for heavy vehicles.
Which vehicles is this part compatible with?
This component is compatible with DAF and Mercedes-Benz heavy commercial vehicles, including trucks and tractor units.
What are the technical pressure specifications?
The valve features an inlet pressure of 8.5 BAR, an adjustment range between 4.0 and 8.0 BAR, and a standard outlet pressure of 5.5 BAR ± 0.4 BAR.
What should technicians check during installation?
Technicians should ensure the M16x1.5 ports are correctly seated and verify that the safety pressure threshold is maintained according to vehicle specifications.
What are the OE reference numbers of this part?
301.07.0063 directly replaces DAF OE number 0906782. It also replaces Mercedes-Benz OE numbers 0034318306, 0034318906 and WABCO OE number 4750155120.