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301.01.0032 Unloader Valve, Brake System
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301.01.0032 Mercedes-Benz Compatible Unloader Valve

301.01.0032

Summary

High-strength unloader valve designed for heavy commercial vehicle brake systems. Features M22x1.5 and M12x1.5 ports, with a cut-out pressure of 12.0 BAR / 0.3 BAR, ensuring reliable air pressure regulation in Mercedes-Benz applications. Equivalent to OE Mercedes-Benz 0034310406 and WABCO 9753035410.

Product identifiers
EAN Code8683457011175
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Compatible OEM Codes

  • WABCO
    • 975 303 541 0
  • MERCEDES BENZ
    • 003 431 04 06

Description

What does an unloader valve do?

This unloader valve serves as a critical component within the pneumatic brake system, regulating air pressure to ensure consistent operation of the vehicle's braking and suspension components. Built with heavy-duty grade materials, it manages air release at precise thresholds to maintain system stability under heavy loads.

Vehicle and engine compatibility

This component is specifically designed for use in Mercedes-Benz trucks and buses. It operates within the air brake system to manage pressure relief, ensuring that the pneumatic circuits function within safe operating parameters during transit.

Installation and maintenance

The unit features specific port configurations including M22x1.5 and M12x1.5 connections to ensure seamless integration into existing pneumatic lines. Technicians should verify that the cut-out pressure of 12.0 BAR / 0.3 BAR matches the vehicle's technical requirements during installation.

System troubleshooting

Regular inspection of the inflation valve functionality is recommended to prevent air leaks or pressure fluctuations in the braking circuit. Consult your authorized distributor for fitment verification.

OE cross-reference

301.01.0032 (Unloader Valve) is the equivalent of the Mercedes-Benz and WABCO OE numbers. This part directly replaces Mercedes-Benz OE number 0034310406. It also replaces WABCO OE number 9753035410.

Technical Specifications

Technical Specifications
Port 1M22x1,5
Port 4M12x1,5
Port 21M22x1,5
Port 22M12x1,5
Port 23M12x1,5
Cut-Out Pressure12,0 BAR / 0,3 BAR
Inflation ValveOK
Recycle Valve-

Other OEMs

MERCEDES BENZ

  • A0034310406
  • 0034310406
  • 003 431 04 06

WABCO

  • 9753035410
  • 975 303 541 0

Related Products

Repair Kits

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
MERCEDES BENZ
WABCO

FAQ

What is the function of this unloader valve?
It regulates air pressure within the pneumatic system, releasing air at a set threshold to maintain stable operating pressures.
Which vehicle brands is this part compatible with?
This part is designed for compatibility with Mercedes-Benz vehicles and WABCO systems.
What are the technical port specifications?
The unit features M22x1.5 and M12x1.5 port sizes to ensure proper connection within the brake system.
How can I identify if the valve needs replacement?
Technicians should look for signs of pressure fluctuations or leaks at the ports, particularly if the cut-out pressure deviates from 12.0 BAR.
What are the OE reference numbers of this part?
301.01.0032 directly replaces Mercedes-Benz OE number 0034310406. It also replaces WABCO OE number 9753035410.