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303.02.0003-S Multi-circuit Protection Valve for Iveco and Mercedes-Benz

303.02.0003-S

Summary

This multi-circuit protection valve is engineered for heavy commercial vehicle brake systems. It is compatible with Mercedes-Benz, Scania, DAF, and Iveco, ensuring precise circuit isolation and braking safety through high-strength components. Equivalent to OE Alexander Dennis ABA0034316206S, DAF 1519210S and Mercedes-Benz 0034316206S.

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Compatible OEM Codes

  • WABCO
    • 934 705 003 0 S
  • VDL
    • 20266299 S
  • MERCEDES BENZ
    • 003 431 62 06 S
  • DAF
    • 1519210 S
  • ALEXANDER DENNIS
    • ABA0034316206 S

Description

What does a multi-circuit protection valve do?

This multi-circuit protection valve plays a critical role in the pneumatic brake system of heavy commercial vehicles. By isolating different brake circuits, it ensures that a leak in one section does not compromise the entire braking performance, maintaining safety during operation.

Compatible vehicle brands and models

The component is designed for wide compatibility across various heavy-duty vehicle brands. It is fitted to Mercedes-Benz, Scania, DAF, Iveco, VDL, Solaris, and Alexander Dennis trucks and buses. This valve also functions within systems compatible with WABCO standards to ensure reliable pneumatic control.

Installation and maintenance guidance

Maintenance of this valve is essential for long-term braking reliability. Technicians should inspect the unit during routine pneumatic system checks to ensure proper sealing and pressure regulation. Proper installation ensures that the circuit isolation functions correctly under heavy loads.

System reliability and inspection

Regular inspections of the pneumatic lines connected to the valve can prevent premature wear. Ensuring the system operates within specified pressure ranges helps maintain the integrity of the high-strength components used in this assembly.

OE cross-reference

303.02.0003-S (Multi-circuit Protection Valves Brake System) is the equivalent of the Alexander Dennis, DAF, Mercedes-Benz, VDL and WABCO OE numbers. This part directly replaces Alexander Dennis OE number ABA0034316206S. It also replaces DAF OE number 1519210S, Mercedes-Benz OE number 0034316206S, VDL OE number 20266299S and WABCO OE number 9347050030S.

Technical Specifications

Technical Specifications
Sensor-

Other OEMs

ALEXANDER DENNIS

  • ABA0034316206 S

DAF

  • 1519210 S

MERCEDES BENZ

  • A0034316206 S
  • 0034316206 S
  • 003.431.6206 S
  • 003.431.62.06 S
  • 003 431 6206 S
  • 003 431 62 06 S

VDL

  • 20266299 S

WABCO

  • 9347050030 S
  • 934.705.003.0 S
  • 934 705 003 0 S

Related Products

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
ALEXANDER DENNIS
DAF
IVECO
MERCEDES BENZ
SCANIA
SOLARIS
VDL
WABCO

FAQ

What is the primary function of this protection valve?
It isolates different pneumatic circuits within the brake system to ensure that a failure in one circuit does not lead to a total loss of braking capability.
Which vehicle brands are compatible with this part?
This component is designed for use in Mercedes-Benz, Scania, DAF, Iveco, VDL, Solaris, and Alexander Dennis heavy commercial vehicles.
Is this component compatible with WABCO systems?
Yes, this protection valve is engineered to be compatible with WABCO systems used in heavy commercial vehicle braking setups.
How can I know if my protection valve needs replacement?
Technicians should look for signs of pressure loss in specific circuits or audible air leaks which may indicate a failure in the internal sealing or the valve body.
What are the OE reference numbers of this part?
303.02.0003-S directly replaces Alexander Dennis OE number ABA0034316206S. It also replaces DAF OE number 1519210S, Mercedes-Benz OE number 0034316206S, VDL OE number 20266299S and WABCO OE number 9347050030S.