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75038 DAF Compatible Unloader Valve

301.01.0002

Summary

This unloader valve is designed for heavy commercial vehicle brake systems. It features M22x1.5 and M12x1.5 port sizes and operates with a cut-out pressure of 8.1 BAR / 0.2 BAR, ensuring reliable pressure management in DAF applications. Equivalent to OE DAF 75038.

Product identifiers
EAN Code8699031064369
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Compatible OEM Codes

  • MERCEDES BENZ
    • 003 431 38 06
    • 003 431 36 06
    • 002 431 87 06
    • 002 431 52 06
    • 002 431 46 06
    • 002 431 15 06
  • NEOPLAN
    • 1102733544131
    • 1102733544130
    • 1102732544114
    • 110273201
  • DAF
    • 75038R
    • 75038A
    • 75038
    • 285768
  • MAN
    • N2.50999-9114
    • 84.52101-9017
    • 84.52101-6017
  • WABCO
    • 975 303 474 0
  • VAN HOOL
    • 637214100
  • TEREX
    • 00024212
  • STEYR
    • 99100360090
  • SCANIA
    • 1935691
  • RENAULT TRUCKS
    • 5021170478
  • IVECO
    • 500002011
  • IRISBUS
    • U403004451
  • FAUN
    • 99708458257

Description

What does an unloader valve do?

This unloader valve plays a critical role in the pneumatic brake system by regulating air pressure distribution. It is engineered using heavy-duty grade materials to withstand the demanding operating conditions of heavy commercial vehicles, ensuring long-term reliability and consistent performance throughout its service life.

Compatible vehicles and engines

Designed for compatibility with DAF vehicles, this component ensures precise air circuit balancing. It is also fitted to other DAF trucks in the heavy vehicle segment to maintain system integrity during operation.

Installation and maintenance

Installation requires careful attention to the M22x1.5 and M12x1.5 port connections to prevent air leaks. Technicians should verify the cut-out pressure settings of 8.1 BAR / 0.2 BAR during assembly to ensure the valve functions correctly within the pneumatic circuit.

Troubleshooting guidance

Regular inspection of the inflation valve functionality is recommended to prevent pressure imbalances in the brake system.

OE cross-reference

301.01.0002 (Unloader Valve) is the equivalent of the DAF OE number. This part directly replaces DAF OE number 75038.

Technical Specifications

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

Other OEMs

DAF

  • 0285768
  • 0075038
  • 75038R
  • 75038A
  • 75038
  • 285768

FAUN

  • 99708458257

IRISBUS

  • U403004451

IVECO

  • 500002011

MAN

  • N2509999114
  • 84521019017
  • 84521016017
  • 84.52101.6017
  • N2.50999-9114
  • 84.52101-9017
  • 84.52101-6017

MERCEDES BENZ

  • A0034313806
  • A0034313606
  • A0024318706
  • A0024315206
  • A0024314606
  • A0024311506
  • 0034313806
  • 0034313606
  • 003.431.3806
  • 003.431.38.06
  • 003.431.3606
  • 003.431.36.06
  • 003 431 3806
  • 003 431 3606
  • 0024318706
  • 0024315206
  • 0024314606
  • 002.431.8706
  • 002.431.87.06
  • 002.431.5206
  • 002.431.52.06
  • 002.431.4606
  • 002.431.46.06
  • 002 431 8706
  • 002 431 5206
  • 002 431 4606
  • 003 431 38 06
  • 003 431 36 06
  • 002 431 87 06
  • 002 431 52 06
  • 002 431 46 06
  • 002 431 15 06

NEOPLAN

  • 1102733544131
  • 1102733544130
  • 1102732544114
  • 110273201

RENAULT TRUCKS

  • 5021170478

SCANIA

  • 1935691

STEYR

  • 99100360090

TEREX

  • 00024212

VAN HOOL

  • 637214100

WABCO

  • 9753034740
  • 975.303.474.0
  • 975 303 474 0

Related Products

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
DAF
FAUN
IRISBUS
IVECO
MAN
MERCEDES BENZ
NEOPLAN
RENAULT TRUCKS
SCANIA
STEYR
TEREX
VAN HOOL
WABCO

FAQ

What is the function of this unloader valve?
It regulates air pressure within the brake system, helping to balance pressure across various air circuits in heavy commercial vehicles.
Which vehicles is this part compatible with?
This specific unloader valve is designed for use in DAF trucks and related heavy-duty applications.
What are the connection specifications?
The unit features M22x1.5 ports (Port 1 and Port 21) and M12x1.5 ports (Port 4, Port 22, and Port 23).
How can I identify a faulty unloader valve?
Technicians should look for pressure imbalances or failures in the inflation valve functionality that may indicate a need for replacement.
What are the OE reference numbers of this part?
301.01.0002 directly replaces DAF OE number 75038.