301.01.0007 Unloader Valves
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301.01.0007 Unloader Valves for WABCO Systems

301.01.0007

Summary

●Port 1: M22x1,5 ●Port 4: - ●Port 21: M22x1,5 ●Port 22: M12x1,5 ●Port 23: - ●Plugged: OK ●Cut-Out Pressure: 7,3 BAR / 0,2 BAR ●Inflation Valve: - ●Recycle Valve: OK

EAN Code8683457010925
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Description

The high-strength components of this unloader valve ensure reliable pneumatic control within the braking system. Designed for heavy-duty performance, this part manages air pressure transitions effectively to maintain system stability during operation.

301.01.0007 is the OE equivalent of the WABCO 975 303 040 0 unloader valve used in Mercedes Benz, Scania, MAN, and DAF heavy commercial vehicles. This component is also compatible with various other systems including CASE 820199060 and T103977, IVECO 03429296, and Mercedes Benz 003 431 60 06.

Workshop technicians should note the specific port configurations for seamless installation. The unit features Port 1 (M22x1,5), Port 21 (M22x1,5), and Port 22 (M12x1,5) to ensure a precise fit within the pneumatic circuit. Regular inspection of the cut-out pressure settings—specifically the 7,3 BAR / 0,2 BAR threshold—is recommended during routine maintenance to ensure optimal braking performance.

The precision engineering of this unloader valve ensures it meets the rigorous demands of the heavy commercial vehicle sector, providing consistent pressure regulation for fleet reliability.

Technical Specifications

Port 1M22x1,5
Port 4-
Port 21M22x1,5
Port 22M12x1,5
Port 23-
PluggedOK
Cut-Out Pressure7,3 BAR / 0,2 BAR
Inflation Valve-
Recycle ValveOK
Port 1-2-

Other OEMs

CASE

  • 820199060
  • T103977

DAF

  • 100587
  • 105101
  • 302239
  • 513986

FAUN

  • 1612011
  • 1614594

IRISBUS

  • 500005623

IVECO

  • 03410537
  • 03410538
  • 03429296

KENWORTH

  • S9753030400

LEYLAND

  • BBU5214

MAN

  • 81.52101-6022
  • 81.52101-6073
  • 81.81011-7110
  • 81521016022
  • 81521016073
  • 81810117110

MERCEDES BENZ

  • 000 431 18 06
  • 001 431 29 06
  • 003 431 60 06
  • 0004311806
  • 0014312906
  • 0034316006
  • A0004311806
  • A0014312906
  • A0034316006

NEOPLAN

  • 1102441544303

PETERBILT

  • S 9753030400

SCANIA

  • 2090399

WABCO

  • 975 303 040 0
  • 9753030400

Related Products

Repair Kits

Vehicles Used

BrandModelEngine
CASE
DAF
EVOBUS
FAUN
IRISBUS
IVECO
KENWORTH
LEYLAND
MAN
MERCEDES BENZ
MERITOR
NEOPLAN
PETERBILT
SCANIA
WABCO

FAQ

What are the compatible OEM numbers for this unloader valve?
This part is compatible with several OE references including CASE 82019906 way, DAF 513986, IVECO 03429296, MAN 81.81011-7110, Mercedes Benz 003 431 6 de, and WABCO 975 303 44 or 975 3xx series.
Which vehicle makes use this specific unloader valve?
This component is designed for heavy commercial vehicles from brands such as Mercedes Benz, MAN, Scania, DAF, IVECO, CASE, and Kenworth.
What are the technical port specifications for installation?
The unit features Port 1 at M22x1,5 and Port 21 at M22x1,5, with Port 22 at M12x1,5 for standard heavy-duty pneumatic assembly.
Does this part include a recycle valve function?
Yes, this model is equipped with an integrated recycle valve functionality to ensure proper pneumatic system management.
What is the cut-out pressure setting for this part?
The specified cut-out pressure for this unit is calibrated at 7,3 BAR / 0,2 BAR to maintain optimal braking system regulation.