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973 006 003 0 Relay Valve Compatible with WABCO Systems

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973 006 003 0 WABCO Compatible Relay Valve

303.01.0002

Summary

This heavy-duty relay valve is designed for precision braking in heavy commercial vehicle systems. It features M22x1.5 VOSS ports and an M16x1.5 VOSS exhaust port, operating at a maximum pressure of 8.5 bar to ensure reliable pneumatic control. Equivalent to OE WABCO 9730060030.

Product identifiers
EAN Code8699031064321
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Compatible OEM Codes

  • MAN
    • 81.52116-9075
    • 81.52116-6076
    • 81.52116-6075
    • 81.52116-6074
  • MERCEDES BENZ
    • 004 429 80 44
    • 004 429 63 44
  • WABCO
    • 973 006 003 0
  • SCANIA
    • 1935646
  • ProVia
    • PRO 011 003 0
  • DAF
    • 1518267

Description

What does a relay valve do?

This relay valve serves as a critical component within the pneumatic brake system, managing air pressure distribution to ensure precise braking response. Built with high-strength components, it is designed to withstand the rigorous demands of heavy commercial vehicle operations.

System compatibility

The unit is compatible with WABCO systems and is engineered to maintain stable pressure regulation. Its design ensures seamless integration into existing pneumatic circuits, providing consistent performance across various heavy-duty applications.

Installation and maintenance

For proper installation, technicians should verify that the M22x1.5 and M16x1.5 VOSS ports match the existing lines. Ensuring all connections are secure and checking the silencer status during maintenance will help maintain optimal system pressure up to the 8.5 bar limit.

Troubleshooting and service

Regular inspection of the pneumatic lines and port seals is recommended to prevent air leaks and ensure the continued reliability of the braking system.

OE cross-reference

303.01.0002 (Relay Valve Relay Valves) is the equivalent of the WABCO OE number. This part directly replaces WABCO OE number 9730060030.

Technical Specifications

Technical Specifications
Port 1M22x1,5 VOSS
Port 2M22x1,5 VOSS
Port 4M16x1,5 VOSS
SilencerOK
PressureMAX 8.5 BAR
Port 3-

Other OEMs

DAF

  • 1518267

MAN

  • 81521169075
  • 81521169074
  • 81521166076
  • 81521166075
  • 81521166074
  • 81.52116.9075
  • 81.52116.9074
  • 81.52116.6076
  • 81.52116.6075
  • 81.52116.6074
  • 81.52116-9075
  • 81.52116-6076
  • 81.52116-6075
  • 81.52116-6074

MERCEDES BENZ

  • A0044298044
  • A0044296344
  • 0044298044
  • 0044296344
  • 004.429.8044
  • 004.429.80.44
  • 004.429.6344
  • 004.429.63.44
  • 004 429 8044
  • 004 429 6344
  • 004 429 80 44
  • 004 429 63 44

ProVia

  • PRO 011 003 0

SCANIA

  • 1935646

WABCO

  • 9730060030
  • 973.006.003.0
  • 973 006 003 0

Related Products

Repair Kits

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
DAF
MAN
MERCEDES BENZ
ProVia
SCANIA
WABCO

FAQ

What is the primary function of this relay valve?
It regulates air pressure within the braking system to ensure timely and consistent application of force to the brakes.
What are the connection specifications for this component?
The unit features M22x1.5 VOSS ports for input/output and an M16x1.5 VOSS port for the exhaust.
What is the maximum operating pressure?
This component is designed for operation with a maximum pressure of 8.5 bar.
How can I identify if this part is correct for my system?
Verify that your current system uses WABCO specifications and matches the M22 and M16 VOSS port sizes.
What are the OE reference numbers of this part?
303.01.0002 directly replaces WABCO OE number 9730060030.