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A0044296344 Mercedes-Benz Compatible Relay Valve

303.01.0002

Summary

This heavy-duty relay valve is designed for Mercedes-Benz brake systems. It features M22x1.5 and M16x1.5 VOSS ports, supports a maximum pressure of 8.5 bar, and includes an integrated silencer for reliable pneumatic performance. Equivalent to OE Mercedes-Benz A0044296344.

Product identifiers
EAN Code8699031064321
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Compatible OEM Codes

  • MAN
    • 81.52116-9075
    • 81.52116-6076
    • 81.52116-6075
    • 81.52116-6074
  • MERCEDES BENZ
    • 004 429 80 44
    • 004 429 63 44
  • WABCO
    • 973 006 003 0
  • SCANIA
    • 1935646
  • ProVia
    • PRO 011 003 0
  • DAF
    • 1518267

Description

What does a relay valve do?

This relay valve functions as a critical component within the compressed air brake system of heavy commercial vehicles. It operates by facilitating rapid air pressure transfer triggered by a pilot signal, ensuring consistent braking force and improved response times. Built with high-strength components, it is engineered to withstand the rigorous demands of heavy-duty service environments.

Vehicle compatibility

This component is specifically compatible with Mercedes-Benz vehicles and meets the requirements for heavy commercial vehicle braking systems. It ensures precise air distribution to the brake chambers to maintain optimal safety during deceleration.

Installation and maintenance

For proper installation, technicians should verify that the M22x1.5 and M16x1.5 VOSS ports are correctly aligned and that all connections are secure to prevent air leaks. Regular inspection of the silencer and pressure regulation capabilities is recommended to ensure the system maintains its maximum 8.5 bar operating threshold.

Operational guidance

When replacing this unit, ensure the mounting location on the chassis is clear of debris to maintain optimal pneumatic flow and prevent premature wear of the internal seals.

OE cross-reference

303.01.0002 (Relay Valve Relay Valves) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number A0044296344.

Technical Specifications

Technical Specifications
Port 1M22x1,5 VOSS
Port 2M22x1,5 VOSS
Port 4M16x1,5 VOSS
SilencerOK
PressureMAX 8.5 BAR
Port 3-

Other OEMs

DAF

  • 1518267

MAN

  • 81521169075
  • 81521169074
  • 81521166076
  • 81521166075
  • 81521166074
  • 81.52116.9075
  • 81.52116.9074
  • 81.52116.6076
  • 81.52116.6075
  • 81.52116.6074
  • 81.52116-9075
  • 81.52116-6076
  • 81.52116-6075
  • 81.52116-6074

MERCEDES BENZ

  • A0044298044
  • A0044296344
  • 0044298044
  • 0044296344
  • 004.429.8044
  • 004.429.80.44
  • 004.429.6344
  • 004.429.63.44
  • 004 429 8044
  • 004 429 6344
  • 004 429 80 44
  • 004 429 63 44

ProVia

  • PRO 011 003 0

SCANIA

  • 1935646

WABCO

  • 9730060030
  • 973.006.003.0
  • 973 006 003 0

Related Products

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
DAF
MAN
MERCEDES BENZ
ProVia
SCANIA
WABCO

FAQ

What is the function of this relay valve?
The relay valve facilitates rapid air pressure transfer within the compressed air brake system, triggered by a pilot signal to ensure efficient braking performance.
Which vehicles are compatible with this part?
This specific relay valve is designed for use in Mercedes-Benz heavy commercial vehicles, including trucks and buses.
What are the technical port specifications?
The unit is equipped with M22x1.5 VOSS ports (Port 1 and 2) and an M16x1.5 VOSS port (Port 4), supporting a maximum pressure of 8.5 bar.
How can I identify if a replacement is needed?
Technicians should look for symptoms such as slow braking response or air leaks at the M22 or M16 ports, which may indicate a need for a new unit.
What are the OE reference numbers of this part?
303.01.0002 directly replaces Mercedes-Benz OE number A0044296344.