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75038R Unloader Valve Compatible with DAF

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75038R Unloader Valve for DAF Trucks

301.01.0002

Summary

High-strength unloader valve designed for heavy commercial vehicle air brake systems. Features M22x1,5 and M12x1,5 port configurations with an 8,1 BAR / 0,2 BAR cut-out pressure to ensure reliable pneumatic circuit regulation in DAF trucks. Equivalent to OE DAF 75038R.

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 serves as a critical component within the pneumatic brake system, regulating air pressure distribution to ensure stable operation. It is engineered using heavy-duty grade materials to withstand the high-pressure fluctuations encountered during continuous heavy commercial vehicle operation.

Vehicle and engine compatibility

This specific unit is compatible with DAF trucks and is designed to meet rigorous industrial standards. It features precise port dimensions including M22x1,5 and M12x1,5 threading to ensure a secure fit within the air circuit architecture.

Installation and maintenance

For professional installation, technicians should verify that all ports—including Port 1, Port 4, Port 21, Port 22, and Port 23—are free of debris. Ensuring correct seating of the M22x1,5 and M12x1,5 connections is vital for maintaining the specified 8,1 BAR cut-out pressure and preventing system leaks.

System troubleshooting

Regular inspection of the inflation valve functionality is recommended during routine brake system maintenance to prevent air pressure imbalances in the vehicle's pneumatic lines.

OE cross-reference

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

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

Repair Kits

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?
The valve regulates air pressure within the pneumatic system, helping to balance pressure across various air circuits in heavy commercial vehicles.
What are the connection specifications?
This component features multiple connection points including M22x1,5 and M12x1,5 ports to accommodate standard heavy-duty pneumatic fittings.
What is the operating pressure range?
The unit is designed with a specific cut-out pressure of 8,1 BAR / 0,2 BAR to ensure precise air regulation.
Which vehicles is this part compatible with?
This unloader valve is designed for use in DAF trucks and related heavy commercial vehicle applications.
What are the OE reference numbers of this part?
301.01.0002 directly replaces DAF OE number 75038R.