301.01.0024 Unloader Valves
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301.01.0024 WABCO Compatible Unloader Valves

301.01.0024

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: - ●Recycle Valve: -

EAN Code8683457011090
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Description

The heavy-duty unloader valve is a critical component within the pneumatic braking system, designed to regulate pressure and ensure optimal air-flow stability. This component is engineered with high-strength components to withstand the rigorous demands of heavy commercial vehicle operations, maintaining consistent performance under varying pressure conditions.

301.01.0024 is the OE-equivalent of the WABCO 975 303 071 0 unloader valve used in DAF, EVOBUS, and MERCEDES BENZ systems. This part also maintains high compatibility with MERCEDES BENZ 003 431 48 06 and WABCO 975 303 071 0 specifications, ensuring seamless integration into existing pneumatic circuits.

Workshop technicians should ensure that all port connections—including Port 1 (M22x1,5), Port 4 (M12x1,5), Port 21 (M22x1,5), Port 22 (M12x1,5), and Port 23 (M12x1,5)—are properly seated and leak-free during installation. Regular inspection of the cut-out pressure settings, specifically at the 8,5 BAR threshold, is recommended to maintain system-wide safety and efficiency in heavy-duty transport environments.

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 Valve-
Recycle Valve-

Other OEMs

DAF

  • 1518280

MERCEDES BENZ

  • 003 431 48 06
  • A0034314806

WABCO

  • 975 303 071 0
  • 9753030710

Related Products

Repair Kits

Vehicles Used

BrandModelEngine
DAF
EVOBUS
MERCEDES BENZ
WABCO

FAQ

Which vehicle brands are compatible with the 301.01.0024 unloader valve?
This part is compatible with DAF, EVOBUS, MERCEDES BENZ, and WABCO systems.
What are the exact OEM cross-references for this product?
The compatible OEM codes are DAF 1518280, MERCEDES BENZ 003 431 48 06, and WABCO 975 303 071 0.
What are the port specifications for installation?
The ports include Port 1: M22x1,5; Port 4: M12x1,5; Port 21: M22x1,5; Port 22: M12x1,5; and Port 23: M12x1,5.
What is the operating cut-out pressure for this valve?
The operating cut-out pressure is set at 8,5 BAR / 0,2 BAR.
Is this part suitable for heavy commercial vehicle brake systems?
Yes, it is designed specifically for heavy commercial vehicle brake systems such as those in DAF and MERCEDES BENZ trucks.