Skip to content
301.01.0018 Unloader Valve, Brake System
2117 Views Updated

301.01.0018 Unloader Valve for Mercedes-Benz and MAN

301.01.0018

Summary

This high-strength unloader valve is designed for heavy commercial vehicle brake systems. It features M22x1,5 and M12x1,5 port configurations and operates with a cut-out pressure of 8.5 BAR / 0.2 BAR to ensure precise pneumatic control in demanding environments. Equivalent to OE DAF 1518285, Iveco 04671601 and MAN 84521016012.

Product identifiers
EAN Code8683457011038
Ready to Order
Get Information
Share
WhatsApp Facebook X LinkedIn

Compatible OEM Codes

  • MERCEDES BENZ
    • 002 431 65 06
    • 002 431 62 06
  • MAN
    • 84.52101-6013
    • 84.52101-6012
  • WABCO
    • 975 303 469 0
  • RENAULT TRUCKS
    • 5000790979
  • IVECO
    • 04671601
  • DAF
    • 1518285

Description

What does an unloader valve do?

This unloader valve serves as a critical component within the pneumatic brake system, managing air pressure regulation to ensure reliable braking performance. Built with high-strength components, it facilitates automatic air release at specific thresholds to maintain system stability during operation.

Vehicle and system compatibility

This component is engineered for use in heavy commercial vehicles including Mercedes-Benz, MAN, DAF, Iveco, and Renault Trucks. It is also compatible with WABCO systems to provide seamless integration within existing air brake architectures.

Installation and maintenance guidance

For professional installation, technicians should verify the port connections, specifically the M22x1,5 and M12x1,5 specifications. Ensuring the inflation and recycle valves are functioning correctly during assembly will prevent pressure fluctuations in the pneumatic circuit.

Operational reliability

Regular inspection of the valve ports and pressure settings is recommended to maintain optimal service life in heavy-duty applications.

OE cross-reference

301.01.0018 (Unloader Valve) is the equivalent of the DAF, Iveco, MAN, Mercedes-Benz, Renault Trucks and WABCO OE numbers. This part directly replaces DAF OE number 1518285. It also replaces Iveco OE number 04671601, MAN OE numbers 84521016012, 84521016013, Mercedes-Benz OE numbers 0024316206, 0024316506, Renault Trucks OE number 5000790979 and WABCO OE number 9753034690.

Technical Specifications

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

Other OEMs

DAF

  • 1518285

IVECO

  • 04671601

MAN

  • 84521016013
  • 84521016012
  • 84.52101-6013
  • 84.52101-6012

MERCEDES BENZ

  • A0024316506
  • A0024316206
  • 0024316506
  • 0024316206
  • 002 431 65 06
  • 002 431 62 06

RENAULT TRUCKS

  • 5000790979

WABCO

  • 9753034690
  • 975 303 469 0

Related Products

Repair Kits

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
DAF
IVECO
MAN
MERCEDES BENZ
RENAULT TRUCKS
WABCO

FAQ

What is the function of this unloader valve?
The valve manages air pressure within the pneumatic system by automatically releasing air at a set cut-out pressure to maintain stable braking performance.
Which vehicle brands are compatible with this part?
This component is designed for heavy commercial vehicles such as Mercedes-Benz, MAN, DAF, Iveco, and Renault Trucks.
What are the technical port specifications?
The unit features specific port sizes including M22x1,5 and M12x1,5 to ensure correct fitment within the air brake system.
How can I identify if a replacement is needed?
Technicians should look for irregular pressure fluctuations or failures in the automatic air release function during system testing.
What are the OE reference numbers of this part?
301.01.0018 directly replaces DAF OE number 1518285. It also replaces Iveco OE number 04671601, MAN OE numbers 84521016012, 84521016013, Mercedes-Benz OE numbers 0024316206, 0024316506, Renault Trucks OE number 5000790979 and WABCO OE number 9753034690.