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A0044290644 Relay Valve for Mercedes-Benz Trucks

303.01.0003

Summary

This relay valve is engineered for Mercedes-Benz heavy commercial vehicle brake systems. It features M22x1.5 VOSS ports, an M16x1.5 VOSS port, and supports a maximum operating pressure of 10 BAR, ensuring reliable air pressure regulation. Equivalent to OE Mercedes-Benz A0044290644.

Product identifiers
EAN Code8699031064338
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Compatible OEM Codes

  • MAN
    • 81.52116-9067
    • 81.52116-6069
    • 81.52116-6068
    • 81.52116-6067
  • MERCEDES BENZ
    • 004 429 11 44
    • 004 429 06 44
  • WABCO
    • 973 006 001 0
  • SCANIA
    • 1935645
  • RENAULT TRUCKS
    • 5021170458
  • DAF
    • 1505150
  • ALEXANDER DENNIS
    • DP002130

Description

What does a relay valve do?

This relay valve plays a critical role in the compressed air brake system of heavy commercial vehicles. It functions by facilitating rapid air pressure transfer triggered by a pilot signal, which ensures precise braking performance and response times. The high-strength components are designed to withstand demanding operating conditions in the brake system.

Vehicle compatibility and fitment

Designed specifically for Mercedes-Benz trucks, this component is essential for maintaining optimal pneumatic control. It is also fitted to other heavy commercial vehicles within the same class to ensure consistent braking reliability across various fleet applications.

Installation and maintenance

Installation requires careful attention to the M22x1.5 VOSS and M16x1.5 VOSS port connections to prevent air leaks. Technicians should verify that the system pressure does not exceed the 10 BAR maximum rating during testing to ensure long-term component integrity.

System performance guidance

Consult your authorized distributor to ensure correct fitment for your specific vehicle configuration.

OE cross-reference

303.01.0003 (Relay Valve Relay Valves) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number A0044290644.

Technical Specifications

Technical Specifications
Port 1M22x1,5 VOSS
Port 2M22x1,5 VOSS
Port 4M16x1,5 VOSS
PressureMAX 10 BAR

Other OEMs

ALEXANDER DENNIS

  • DP002130

DAF

  • 1505150

MAN

  • 81521169067
  • 81521166069
  • 81521166068
  • 81521166067
  • 81.52116.6068
  • 81.52116.6067
  • 81.52116-9067
  • 81.52116-6069
  • 81.52116-6068
  • 81.52116-6067

MERCEDES BENZ

  • A0044291144
  • A0044290644
  • 0044291144
  • 0044290644
  • 004.429.1144
  • 004.429.11.44
  • 004.429.0644
  • 004.429.06.44
  • 004 429 1144
  • 004 429 0644
  • 004 429 11 44
  • 004 429 06 44

RENAULT TRUCKS

  • 5021170458

SCANIA

  • 1935645

WABCO

  • 9730060010
  • 973.006.001.0
  • 973 006 001 0

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
ALEXANDER DENNIS
DAF
MAN
MERCEDES BENZ
RENAULT TRUCKS
SCANIA
WABCO

FAQ

What is the function of this relay valve?
The relay valve facilitates rapid air pressure transfer via a pilot signal, which is essential for efficient braking in heavy commercial vehicle air systems.
What are the connection specifications for this part?
This component features two M22x1.5 VOSS ports and one M16x1.5 VOSS port, designed for high-pressure pneumatic stability.
What is the maximum operating pressure?
The component is rated for a maximum operating pressure of 10 BAR within the vehicle's compressed air brake system.
Which vehicles are compatible with this part?
This specific part is designed for use in Mercedes-Benz heavy commercial vehicles such as trucks and tractor units.
What are the OE reference numbers of this part?
303.01.0003 directly replaces Mercedes-Benz OE number A0044290644.