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301.01.0038 WABCO Unloader Valves

301.01.0038

Summary

●Port 1: M22x1,5 ●Port 4: - ●Port 21: M22x1,5 ●Cut-Out Pressure: 7,8 BAR / 0,2 BAR ●Inflation Valve: OK

EAN Code8683457011236
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Description

The technical function of this unloader valve is to regulate air pressure within the pneumatic brake system, ensuring optimal operational stability. Designed with heavy-duty grade materials, this component plays a critical role in maintaining consistent pressure levels during vehicle operation.

301.01.0038 is the OE-equivalent of the WABCO 975 300 112 0 unloader valve used in heavy commercial vehicle brake systems. This component is engineered to meet strict technical standards for reliable pneumatic control and system integration.

Workshop technicians should verify the port specifications before installation. This unit features Port 1 (M22x1,5) and Port 21 (M22x1,5), with a cut-out pressure setting of 7,8 BAR / 0,2 BAR. Regular inspection of the inflation valve functionality is recommended during routine brake system maintenance to ensure long-term reliability.

Technical Specifications

Port 1M22x1,5
Port 4-
Port 21M22x1,5
Cut-Out Pressure7,8 BAR / 0,2 BAR
Inflation ValveOK

Other OEMs

WABCO

  • 975 300 112 0
  • 9753001120

Related Products

Vehicles Used

BrandModelEngine
WABCO

FAQ

What is the compatibility of this unloader valve?
This part is a direct OE-equivalent for WABCO 975 300 112 0 and is designed for heavy commercial vehicle brake systems.
What are the technical port specifications for this part?
The unit features Port 1 at M22x1,5 and Port 21 at M22x1,5 for secure pneumatic connections.
What is the operating cut-out pressure?
The device operates with a cut-out pressure specification of 7,8 BAR / 0,2 BAR.
Is this part suitable for heavy commercial vehicles?
Yes, it is specifically designed for the pneumatic brake systems of heavy commercial vehicles and compatible WABCO hardware.
Does this component include an inflation valve?
Yes, the product features an integrated inflation valve (OK) as per its technical design.