303.02.0109 4-circuit protection valve
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303.02.0109 4-circuit protection valve — WABCO

303.02.0109

Summary

The 303.02.0109 is a high-precision 4-circuit protection valve designed for heavy commercial vehicle brake systems. It features Port 1 (M22x1,5) and four M16x1,5 ports (21, 22, 23, 24) with specified opening pressures of 7,9 BAR and closing pressures of 6,4 BAR. This component is compatible with DAF, IVECO, and RENAULT TRUCKS systems.

EAN Code8683457009806
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Compatible OEM Codes

  • IVECO 42041486 04749971 04720937
  • RENAULT TRUCKS 5000878469 5000869119
  • WABCO 934 702 082 0
  • DAF 1518176

Description

This 4-circuit protection valve is a critical component within the pneumatic brake system of heavy commercial vehicles, ensuring proper pressure distribution across multiple circuits. Engineered for high-strength performance, it provides essential safety by managing air flow through specialized ports to maintain system integrity during operation.

303.02.0109 is the OE-equivalent of the WABCO 934 702 082 0 4-circuit protection valve used in DAF, IVECO, and RENAULT TRUCKS vehicles. This component also serves as a precise replacement for OEM codes 1518176, 04720937, 04749971, 42041486, 5000869119, and 5000878469 to ensure seamless integration with original braking hardware.

Designed for workshop technicians, the installation requires precise alignment of the M22x1,5 and M16x1,5 ports to ensure optimal seal and pressure regulation. Maintenance teams should regularly check the opening pressure (7,9 BAR) and closing pressure (6,4 BAR) thresholds to verify the valve's responsiveness within the pneumatic circuit. The robust construction is designed to withstand the rigorous demands of long-haul transport environments.

Technical Specifications

Port 1M22x1,5
Port 21M16x1,5
Port 22M16x1,5
Port 23M16x1,5
Port 24M16x1,5
Opening Pressure 217,9 BAR
Opening Pressure 227,9 BAR
Opening Pressure 237,9 BAR
Opening Pressure 247,9 BAR
Closing Pressure 216,4 BAR
Closing Pressure 226,4 BAR
Closing Pressure 236,4 BAR
Closing Pressure 246,4 BAR

Other OEMs

DAF

  • 1518176

IVECO

  • 42041486
  • 04749971
  • 04720937

RENAULT TRUCKS

  • 5000878469
  • 5000869119

WABCO

  • 9347020820
  • 934 702 082 0

Vehicles Used

BrandModelEngine
DAF
IRISBUS
IVECO
RENAULT TRUCKS
WABCO

FAQ

Which vehicle brands is this valve compatible with?
This part is compatible with DAF, IVECO, RENAULT TRUCKS, and WABCO systems.
What are the technical port specifications for this unit?
It features one M22x1,5 port (Port 1) and four M16x1,5 ports (Ports 21, 22, 23, and 24).
Can this part replace IVECO part number 42041486?
Yes, it is a direct OE-equivalent for IVECO code 42041486 as well as DAF 1518176.
What are the pressure thresholds for this protection valve?
The valve has an opening pressure of 7,9 BAR and a closing pressure of 6,4 BAR for all circuits.
Is this part suitable for heavy commercial vehicle braking systems?
Yes, it is specifically designed for heavy commercial vehicle pneumatic brake circuits.