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303.09.0004 Load Unloading Valve, Brake System
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303.09.0004 Compatible Load Unloading Valve

303.09.0004

Summary

This heavy-duty load unloading valve features M22x1.5 ports and an adjustment range of 1.4 - 2.8 BAR for empty pressure. It is compatible with DAF, Scania, and WABCO systems to ensure precise air pressure regulation. Equivalent to OE DAF 164464, Fruehauf CF350516TSH60511 and John Deere 2480006.

Product identifiers
EAN Code8683457010079
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Compatible OEM Codes

  • VAN HOOL
    • 637205430
    • 637204200
  • DAF
    • 553000
    • 164464
  • WABCO
    • 475 604 013 0
  • TEREX
    • 34654440
  • SCANIA
    • 1010126
  • JOHN DEERE
    • 2480006
  • FRUEHAUF
    • CF350516/TSH6051-1

Description

What does a load unloading valve do?

This load unloading valve plays a critical role in the pneumatic brake system of heavy commercial vehicles by regulating air pressure levels. It ensures that the system maintains the correct pressure thresholds during operation, utilizing high-strength components to withstand continuous heavy-duty service conditions.

Vehicle and system compatibility

The component is designed for compatibility with various heavy-duty models, including DAF, Scania, Terex, and Van Hool vehicles. It is also suitable for use in machines from John Deere and is fully compatible with WABCO systems.

Technical specifications and installation

For precise installation, this unit features M22x1.5 ports and a 180° lever position. Technicians should verify the adjustment range of 1.4 - 2.8 BAR for empty pressure and 3.4 - 4.3 BAR for half pressure to ensure optimal system performance during maintenance.

Maintenance and troubleshooting

Regular inspection of the valve ensures reliable air pressure management and prevents system imbalances in the pneumatic circuit. Consult your authorized distributor.

OE cross-reference

303.09.0004 (Load Unloading Valve) is the equivalent of the DAF, Fruehauf, John Deere, Scania, Terex, Van Hool and WABCO OE numbers. This part directly replaces DAF OE numbers 164464, 553000. It also replaces Fruehauf OE number CF350516TSH60511, John Deere OE number 2480006, Scania OE number 1010126, Terex OE number 34654440, Van Hool OE numbers 637204200, 637205430 and WABCO OE number 4756040130.

Technical Specifications

Technical Specifications
Port 1M22x1,5
Port 2M22x1,5
Adjustment Range Empty Pressure1,4 - 2,8 BAR
Adjustment Range Half Pressure3,4 - 4,3 BAR
Lever Position180°

Other OEMs

DAF

  • 553000
  • 164464

FRUEHAUF

  • CF350516/TSH6051-1

JOHN DEERE

  • 2480006

SCANIA

  • 1010126

TEREX

  • 34654440

VAN HOOL

  • 637205430
  • 637204200

WABCO

  • 4756040130
  • 475 604 013 0

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
DAF
FRUEHAUF
JOHN DEERE
SCANIA
TEREX
VAN HOOL
WABCO

FAQ

What is the function of this load unloading valve?
It regulates air pressure within the pneumatic system, ensuring the vehicle maintains specific pressure thresholds for safe braking performance.
Which vehicle makes is this valve compatible with?
This component is compatible with DAF, Scania, Terex, Van Hool, and John Deere vehicles, as well as WABCO systems.
What are the technical port specifications?
The valve is equipped with M22x1.5 ports on both sides to ensure secure connection within the pneumatic circuit.
How do I check if the valve is functioning correctly?
Technicians should monitor if the pressure stays within the 1.4 - 2.8 BAR (empty) and 3.4 - 4.3 BAR (half) adjustment ranges.
What are the OE reference numbers of this part?
303.09.0004 directly replaces DAF OE numbers 164464, 553000. It also replaces Fruehauf OE number CF350516TSH60511, John Deere OE number 2480006, Scania OE number 1010126, Terex OE number 34654440, Van Hool OE numbers 637204200, 637205430 and WABCO OE number 4756040130.