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301.01.0024 Unloader Valve, Brake System
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301.01.0024 Unloader Valve Compatible with DAF and Mercedes-Benz

301.01.0024

Summary

This unloader valve is designed for heavy commercial vehicle brake systems, featuring M22x1.5 and M12x1.5 port configurations. It ensures precise pressure regulation with a cut-out pressure of 8.5 BAR / 0.2 BAR, providing reliable performance for DAF and Mercedes-Benz trucks. Equivalent to OE DAF 1518280, Mercedes-Benz 0034314806 and WABCO 9753030710.

Product identifiers
EAN Code8683457011090
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Compatible OEM Codes

  • WABCO
    • 975 303 071 0
  • MERCEDES BENZ
    • 003 431 48 06
  • DAF
    • 1518280

Description

What does an unloader valve do?

This unloader valve plays a critical role in the pneumatic brake system by regulating air pressure to ensure consistent operation. Built with high-strength components, it manages the air release process to maintain the required pressure levels within the system, supporting the long-term reliability of heavy commercial vehicle braking units.

Compatible vehicles and engines

This component is engineered to be compatible with DAF and Mercedes-Benz trucks. It functions seamlessly within the air brake systems used in these heavy commercial vehicles, ensuring that pressure thresholds are met during operation. Check the compatibility list for more details.

Installation and maintenance

Installation requires precision to ensure correct alignment of the M22x1.5 and M12x1.5 ports. Technicians should verify that all connections are secure to prevent pressure drops. Regular inspection of the cut-out pressure, which operates at 8.5 BAR / 0.2 BAR, is recommended to maintain optimal pneumatic system integrity.

System performance

Maintaining proper pressure regulation prevents unnecessary wear on compressor systems and ensures the braking performance remains stable across various driving conditions.

OE cross-reference

301.01.0024 (Unloader Valve) is the equivalent of the DAF, Mercedes-Benz and WABCO OE numbers. This part directly replaces DAF OE number 1518280. It also replaces Mercedes-Benz OE number 0034314806 and WABCO OE number 9753030710.

Technical Specifications

Technical Specifications
Port 1M22x1,5
Port 4M12x1,5
Port 21M22x1,5
Port 22M12x1,5
Port 23M12x1,5
Cut-Out Pressure8,5 BAR / 0,2 BAR
Inflation Valve-
Recycle Valve-

Other OEMs

DAF

  • 1518280

MERCEDES BENZ

  • A0034314806
  • 003 431 48 06

WABCO

  • 9753030710
  • 975 303 071 0

Related Products

Repair Kits

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
DAF
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 once the set threshold is reached to ensure stable pneumatic operation.
Which vehicle brands are compatible with this part?
This component is designed for use in heavy commercial vehicles, specifically compatible with DAF and Mercedes-Benz trucks.
What are the port specifications for this component?
The unit features specific port sizes including M22x1.5 for Port 1 and Port 21, and M12x1.5 for Port 4, Port 22, and Port 23.
How can I identify if the unloader valve needs replacement?
Technicians should look for irregular pressure fluctuations or failure to reach/release the cut-out pressure of 8.5 BAR / 0.2 BAR in the pneumatic system.
What are the OE reference numbers of this part?
301.01.0024 directly replaces DAF OE number 1518280. It also replaces Mercedes-Benz OE number 0034314806 and WABCO OE number 9753030710.