301.01.0030 Unloader Valves
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0020317106 MERCEDES BENZ Unloader Valves — MERCEDES BENZ

301.01.0030

Summary

●Port 1: M22x1,5 ●Port 4: M12x1,5 ●Port 21: M22x1,5 ●Port 22: M12x1,5 ●Port 23: M12x1,5 ●Cut-Out Pressure: 8,5 BAR / 0,2 BAR ●Inflation Valve: OK ●Recycle Valve: -

EAN Code8683457011151
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Compatible OEM Codes

  • MERCEDES BENZ 002 431 89 06 002 431 71 06 002 031 71 06
  • WABCO 975 303 472 0
  • LIEBHERR 502657908
  • ALEXANDER DENNIS AB9753034720

Description

This high-strength component serves a critical function within the pneumatic brake system, ensuring precise pressure regulation and reliable control. Engineered for heavy-duty performance, the unloader valve manages air distribution to maintain consistent system stability under varying operating conditions.

The VADEN ORIGINAL 301.01.0030 is the OE equivalent of the MERCEDES BENZ 0020317106 unloader valve used in heavy commercial vehicle systems. This part is also compatible with the following references: ALEXANDER DENNIS AB9753034720, LIEBHERR 502657908, MERCEDES BENZ 0024317106, MERCEDES BENZ 0024318906, and WABCO 9753034720.

Designed with specific port configurations including M22x1,5 and M12x1,5 threads, this component is engineered to meet rigorous technical standards. Technicians should verify the port sizes and cut-out pressure requirements (8,5 BAR / 0,2 BAR) during installation to ensure seamless integration with the existing brake system architecture.

Maintaining the integrity of the air brake system requires high-strength components that can withstand continuous pressure cycles. Regular inspection of the inflation valve functionality and port connections is recommended to prevent system pressure drops in commercial vehicle fleets.

Technical Specifications

Port 1M22x1,5
Port 4M12x1,5
Port 21M22x1,5
Port 22M12x1,5
Port 23M12x1,5
Cut-Out Pressure8,5 BAR / 0,2 BAR
Inflation ValveOK
Recycle Valve-

Other OEMs

ALEXANDER DENNIS

  • AB9753034720

LIEBHERR

  • 502657908

MERCEDES BENZ

  • A0024318906
  • A0024317106
  • A0020317106
  • 0024318906
  • 0024317106
  • 0020317106
  • 002 431 89 06
  • 002 431 71 06
  • 002 031 71 06

WABCO

  • 9753034720
  • 975 303 472 0

Related Products

Repair Kits

Vehicles Used

BrandModelModel TypeEngine
ALEXANDER DENNIS
LIEBHERR
MERCEDES BENZ
WABCO

FAQ

What are the technical specifications for the ports?
The unit features Port 1 (M22x1,5), Port 4 (M12x1,5), Port 21 (M22x1,5), Port 22 (M12x1,5), and Port 23 (M12x1,5) for precise connectivity.
Which OEM references are compatible with this part?
This part is compatible with: ALEXANDER DENNIS AB9753034720, LIEBHERR 5026579 own, MERCEDES BENZ 0024317106, MERCEDES BENZ 0024318906, WABCO 975303472 even.
What is the cut-out pressure of this unloader valve?
The component operates with a specified cut-out pressure of 8,5 BAR / 0,2 BAR to ensure reliable pneumatic control.
Is this part suitable for heavy commercial vehicles?
Yes, it is designed for heavy commercial vehicle brake systems and is compatible with brands like Mercedes-Benz and WABCO.
Does this component include an inflation valve?
Yes, the technical specifications confirm that the inflation valve function is included (OK) in this model.