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303.04.0142 Axle Lift Valve compatible with WABCO

303.04.0142

Summary

This high-strength Axle Lift Valve is designed for heavy commercial vehicle brake systems. It ensures precise axle positioning and load distribution, maintaining compatibility with WABCO systems to support efficient fleet operation. Equivalent to OE WABCO 4630840420.

Product identifiers
EAN Code8683457043329
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Compatible OEM Codes

  • WABCO
    • 463 084 042 0

Description

What does an axle lift valve do?

This axle lift valve plays a critical role in the pneumatic brake and suspension system of heavy commercial vehicles. By managing the air pressure required to raise or lower the axle, it directly influences tire wear, fuel efficiency, and the vehicle's overall load-carrying flexibility.

Compatibility and application

The component is compatible with WABCO systems and is engineered to withstand heavy-duty service conditions. Whether used in manual mechanical setups or integrated into electronic control modules, this part ensures reliable axle positioning based on real-time load requirements.

Installation and maintenance

For optimal performance, technicians should inspect all air hose connections and fittings during installation. Ensuring proper sealing is critical to prevent pressure loss and maintain the efficiency of the entire pneumatic circuit. Regular checks of the valve's operation help prevent uneven load distribution.

Troubleshooting guidance

If an axle fails to lift or lower correctly, it often indicates a need for component replacement to restore original performance levels. Replacing the unit ensures a more reliable long-term solution than attempting to repair individual worn internal parts.

OE cross-reference

303.04.0142 (Axle Lift Valve Axle Lift Valves) is the equivalent of the WABCO OE number. This part directly replaces WABCO OE number 4630840420.

Other OEMs

WABCO

  • 4630840420
  • 463 084 042 0

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
WABCO

FAQ

What is the function of an axle lift valve?
An axle lift valve manages the pressurized air required to raise or lower a vehicle's axle, which helps optimize tire life and fuel efficiency.
How can I identify a faulty axle lift valve?
Common symptoms include an axle failing to lift or lower properly, or visible air leaks around the hose connections and fittings.
Can this valve be used in electronic suspension systems?
Yes, it is designed to work within complex pneumatic systems, including those managed by electronic control modules and load sensors.
Why should I replace the whole unit instead of repairing it?
Replacing the complete unit provides a more reliable and longer-lasting solution than attempting to replace individual internal components.
What are the OE reference numbers of this part?
303.04.0142 directly replaces WABCO OE number 4630840420.