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303.06.0146 WABCO Complete, ALB Load Sensing Valve

303.06.0146

Summary

●Empty Pressure Port 41/42: 1,2 BAR ●Empty Pressure Port 2: 2,8 BAR ●Full Pressure Port 2: 6,7 BAR ●Full Pressure Port 41/42: 4,9 BAR ●Port 1: M16x1,5 ●Port 2: M16x1,5(x2) ●Port 4: M16,50. This high-strength component is an OE equivalent for WABCO systems.

EAN Code8683457051638
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Compatible OEM Codes

  • WABCO 475 711 139 0

Description

This high-strength ALB Load Sensing Valve is a critical component designed to regulate pneumatic pressure within the brake system based on the vehicle load. It ensures optimal braking performance and stability by managing the air distribution between the empty and full load states through precise pressure ports.

The 303.06.0146 is the OE equivalent of the WABCO 4757111390 product used in WABCO systems. It features a specific configuration with Port 1 at M16x1,5 and multiple M16x1,5 connection points to ensure seamless integration into the pneumatic circuit. This part provides reliable performance under heavy-duty operating conditions.

Technical specifications include an Empty Pressure Port 41/42 of 1,2 BAR and a Full Pressure Port 41/42 of 4,9 BAR. Maintenance technicians should verify all port connections and ensure the integrity of the M16x1,5 threading during installation to prevent air leaks and maintain system pressure stability.

For optimal performance and longevity, always check the valve's response to load changes during routine brake system inspections and maintenance cycles.

Technical Specifications

Empty Pressure Port 41/421,2 BAR
Empty Pressure Port 22,8 BAR
Full Pressure Port 26,7 BAR
Full Pressure Port 41/424,9 BAR
Port 1M16x1,5
Port 2M16x1,5(x2)
Port 4M16x1,50

Other OEMs

WABCO

  • 4757111390
  • 475 711 139 0

Related Products

Vehicles Used

BrandModelModel TypeEngine
WABCO

FAQ

What is the primary function of this ALB Load Sensing Valve?
The valve regulates pneumatic braking pressure by sensing the load weight, ensuring consistent braking force during different vehicle load states.
Which OEM numbers is this product compatible with?
This product is a direct replacement for the WABCO 4757111390.
What are the technical port specifications for this unit?
The unit features Port 1 (M16x1,5), Port 2 (M16x1,5 x2), and Port 4 (M16x1,50) to ensure precise mechanical fitment.
Is this component suitable for heavy-duty applications?
Yes, it is engineered with high-strength components designed for heavy commercial vehicle brake systems.
How can I identify if a replacement is needed?
Technicians should monitor for inconsistent braking response or pressure irregularities that may indicate a faulty sensing mechanism.