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303.01.0025.01 WABCO Repair Kit, Relay Valve

303.01.0025.01

Summary

The VADEN ORIGINAL 303.01.0025.01 is a high-precision Repair Kit for Relay Valves, designed for heavy commercial vehicle brake systems. This component is engineered for compatibility with WABCO (973 001 002 2), MERCEDES BENZ (000 430 54 60), and MAN (81.52116-6040) systems, ensuring reliable pneumatic performance and long-term durability in demanding workshop environments.

EAN Code8683457003941
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Description

The maintenance of pneumatic brake systems requires high-strength components to ensure safety and operational continuity. This Repair Kit, Relay Valve is designed to restore the precise functionality of relay valves within heavy commercial vehicle braking circuits. By utilizing heavy-duty grade materials, it provides a reliable solution for preventing air leaks and maintaining consistent pressure regulation during operation.

303.01.0025.01 is the OE-equivalent of the WABCO 973 001 002 2 Relay Valve used in DAF, IVECO, LIEBHERR, MAN, MERCEDES BENZ, and NEOPLAN systems. This kit is specifically engineered to meet the technical requirements of professional workshop technicians working on heavy commercial vehicles and specialized machinery.

For workshop technicians performing routine maintenance or troubleshooting brake system pressure issues, this kit offers an efficient assembly process. It is essential for maintaining the integrity of the relay valve's internal mechanisms, ensuring that pneumatic signals are transmitted without delay. Regular replacement using high-quality repair kits helps prevent system failures and optimizes overall braking performance.

Proper installation of this kit ensures full compatibility with original system specifications from major manufacturers such as WABCO and Mercedes Benz. By addressing wear in the relay valve assembly early through systematic maintenance, fleet managers can reduce downtime and ensure the vehicle meets safety standards during heavy-duty transport tasks.

Other OEMs

DAF

  • 689541

IVECO

  • 8124656

LIEBHERR

  • 502991108

MAN

  • 81.52116-6040
  • 81521166040

MERCEDES BENZ

  • 000 430 54 60
  • 0004305460
  • A0004305460

WABCO

  • 973 001 002 2
  • 973.001.002.2
  • 9730010022

Vehicles Used

BrandModelEngine
DAF
EVOBUS
GOLDHOFER
IVECO
LIEBHERR
MAN
MAN NEOPLAN
MERCEDES BENZ
NEOPLAN
WABCO

FAQ

Which vehicles is this relay valve repair kit compatible with?
This kit is compatible with DAF (689541), IVECO (8124656), LIEBHERR (502991108), MAN (81.52116-604), MERCEDES BENZ (000 430 54 6 way), and WABCO (973 001 002 2) systems.
Does this kit meet the technical standards for heavy commercial vehicles?
Yes, it is designed using heavy-duty grade materials to meet the rigorous demands of the heavy commercial vehicle sector and pneumatic braking requirements.
Can this be used as a replacement for WABCO parts?
Yes, it serves as a high-quality equivalent for the WABCO 973 001 002 2 relay valve system.
Is this part suitable for MAN NEOPLAN models?
Yes, it is fully compatible with MAN/NEOPLAN braking system architectures through its OEM equivalence.
What should a technician check before installation?
Technicians should verify the existing relay valve model against the listed OEM codes: DAF 689541, IVECO 8124656, LIEBHERR 5029911, MAN 81.52116-6 way, MERCEDES BENZ 0 (or similar) and WABCO 973 own series.