301.01.0017 Unloader Valves
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301.01.0017 WABCO Compatible Unloader Valves

301.01.0017

Summary

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

EAN Code8683457011021
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Description

The heavy-duty unloader valve is a critical component within the pneumatic brake system, ensuring precise pressure regulation and system stability. This part is engineered to meet strict industrial standards for reliability in heavy commercial vehicle applications.

301.01.0017 is the OE-equivalent of the WABCO 975 303 463 0 unloader valve used in Freightliner, Iveco, Kenworth, Mack, MAN, Meritor, Peterbilt, Renault Trucks, Scania, and Volvo vehicles. This component ensures seamless pneumatic control and maintains optimal system pressure during operation.

For workshop technicians, this unloader valve features specific port dimensions including Port 1 (M22x1,5) and Port 21 (M22x1,5) to ensure a precise fit. Regular inspection of the inflation and recycle valve functions is recommended during scheduled maintenance to ensure the cut-out pressure remains at the specified 8,5 BAR level.

This part is designed for high-strength performance in demanding environments. It provides essential support for the braking-suspension system by managing air flow effectively across various heavy commercial vehicle models.

Technical Specifications

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

Other OEMs

FREIGHTLINER

  • TDAS9753034630

IVECO

  • 043074

KENWORTH

  • S975-303-463-0

MACK

  • 6300-9753034630

MAN

  • 84.52101-6012
  • 84521016012

MERITOR

  • S9753034630

PETERBILT

  • S 975-303-463-0

RENAULT TRUCKS

  • 5000790979

SCANIA

  • 1935688

VOLVO

  • WAB9753034630

WABCO

  • 975 303 463 0
  • 9753034630

Related Products

Repair Kits

Vehicles Used

BrandModelEngine
FREIGHTLINER
IVECO
KENWORTH
MACK
MAN
MERITOR
PETERBILT
RENAULT TRUCKS
SCANIA
VOLVO
WABCO

FAQ

Which vehicle brands are compatible with this unloader valve?
This part is compatible with WABCO, VOLVO (WAB9753034630), SCANIA (1935688), RENAULT TRUCKS (5000790979), IVECO (043074), FREIGHTLINER (TDAS9753034630), KENWORTH (S975-303-463-0), MACK (6300-9753034630), MAN (84.521 own), MERITOR (S975303463), and PETERBILT (S 975-303-463-0).
What are the technical port specifications for this part?
The unit features Port 1 at M22x1,5, Port 21 at M22x1,5, and Port 22 at M12x1,5 for precise installation.
What is the operating cut-out pressure?
The valve operates with a standard cut-out pressure of 8,5 BAR / 0,2 BAR to ensure pneumatic system stability.
Is this part suitable for heavy commercial vehicles?
Yes, it is designed specifically for heavy commercial vehicles like trucks and buses within the braking system.
Does it include inflation and recycle functions?
Yes, the component includes both functional inflation and recycle valve capabilities as standard.