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5021170478 Unloader Valve for Renault Trucks

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5021170478 Compatible Unloader Valve — Renault Trucks

301.01.0002

Summary

This unloader valve is designed for Renault Trucks brake systems, featuring M22x1,5 and M12x1,5 port configurations. It operates with a cut-out pressure of 8.1 BAR / 0.2 BAR to ensure reliable air pressure regulation in heavy commercial vehicle braking systems. Equivalent to OE Renault Trucks 5021170478.

Product identifiers
EAN Code8699031064369
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Compatible OEM Codes

  • MERCEDES BENZ
    • 003 431 38 06
    • 003 431 36 06
    • 002 431 87 06
    • 002 431 52 06
    • 002 431 46 06
    • 002 431 15 06
  • NEOPLAN
    • 1102733544131
    • 1102733544130
    • 1102732544114
    • 110273201
  • DAF
    • 75038R
    • 75038A
    • 75038
    • 285768
  • MAN
    • N2.50999-9114
    • 84.52101-9017
    • 84.52101-6017
  • WABCO
    • 975 303 474 0
  • VAN HOOL
    • 637214100
  • TEREX
    • 00024212
  • STEYR
    • 99100360090
  • SCANIA
    • 1935691
  • RENAULT TRUCKS
    • 5021170478
  • IVECO
    • 500002011
  • IRISBUS
    • U403004451
  • FAUN
    • 99708458257

Description

What does an unloader valve do?

This unloader valve plays a critical role in the pneumatic brake system by managing air pressure regulation. It ensures that the compressor stops producing air once the required pressure is reached, maintaining stable system performance. Built with high-strength components, it is designed to withstand the rigorous demands of heavy commercial vehicle operations.

Vehicle compatibility

This component is specifically compatible with Renault Trucks vehicles. It functions within the air brake system to provide precise control over pressure thresholds, ensuring the pneumatic circuits remain within safe operating limits during transit.

Installation and maintenance

For proper installation, technicians should verify the port sizes, specifically the M22x1,5 and M12x1,5 connections, to ensure a secure fit. Regular inspection of the inflation valve and port seals is recommended to prevent pressure drops in the braking circuit.

Troubleshooting guidance

Checking the cut-out pressure of 8.1 BAR ensures the valve is regulating correctly within the vehicle's air system. If pressure fluctuations occur, verifying the integrity of all connections is a key troubleshooting step.

OE cross-reference

301.01.0002 (Unloader Valve) is the equivalent of the Renault Trucks OE number. This part directly replaces Renault Trucks OE number 5021170478.

Technical Specifications

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

Other OEMs

DAF

  • 0285768
  • 0075038
  • 75038R
  • 75038A
  • 75038
  • 285768

FAUN

  • 99708458257

IRISBUS

  • U403004451

IVECO

  • 500002011

MAN

  • N2509999114
  • 84521019017
  • 84521016017
  • 84.52101.6017
  • N2.50999-9114
  • 84.52101-9017
  • 84.52101-6017

MERCEDES BENZ

  • A0034313806
  • A0034313606
  • A0024318706
  • A0024315206
  • A0024314606
  • A0024311506
  • 0034313806
  • 0034313606
  • 003.431.3806
  • 003.431.38.06
  • 003.431.3606
  • 003.431.36.06
  • 003 431 3806
  • 003 431 3606
  • 0024318706
  • 0024315206
  • 0024314606
  • 002.431.8706
  • 002.431.87.06
  • 002.431.5206
  • 002.431.52.06
  • 002.431.4606
  • 002.431.46.06
  • 002 431 8706
  • 002 431 5206
  • 002 431 4606
  • 003 431 38 06
  • 003 431 36 06
  • 002 431 87 06
  • 002 431 52 06
  • 002 431 46 06
  • 002 431 15 06

NEOPLAN

  • 1102733544131
  • 1102733544130
  • 1102732544114
  • 110273201

RENAULT TRUCKS

  • 5021170478

SCANIA

  • 1935691

STEYR

  • 99100360090

TEREX

  • 00024212

VAN HOOL

  • 637214100

WABCO

  • 9753034740
  • 975.303.474.0
  • 975 303 474 0

Related Products

Repair Kits

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
DAF
FAUN
IRISBUS
IVECO
MAN
MERCEDES BENZ
NEOPLAN
RENAULT TRUCKS
SCANIA
STEYR
TEREX
VAN HOOL
WABCO

FAQ

What is the function of this unloader valve?
The unloader valve regulates air pressure within the brake system by releasing air once a specific cut-out pressure threshold is reached.
Which vehicles are compatible with this part?
This specific component is designed for use in Renault Trucks heavy commercial vehicles.
What are the technical port specifications?
The unit features Port 1 and Port 21 at M22x1,5, while Port 4, Port 22, and Port 23 are sized at M12x1,5.
How can I identify if the valve needs replacement?
Technicians should look for inconsistent air pressure or failure to reach the 8.1 BAR cut-out threshold during system testing.
What are the OE reference numbers of this part?
301.01.0002 directly replaces Renault Trucks OE number 5021170478.