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004 429 63 44 Relay Valve Compatible with Mercedes-Benz

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004 429 63 44 Relay Valve for Mercedes-Benz

303.01.0002

Summary

This heavy-duty relay valve is designed for compressed air brake systems, featuring M22x1.5 VOSS and M16x1.5 VOSS ports. It supports a maximum operating pressure of 8.5 BAR and includes an integrated silencer for optimal air management in Mercedes-Benz vehicles. Equivalent to OE Mercedes-Benz 0044296344.

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 plays a critical role in the compressed air brake system by facilitating rapid air pressure transfer triggered by a pilot signal. Built with high-strength components, it ensures precise pneumatic control and long-term durability under heavy commercial vehicle operating conditions.

Vehicle and connection compatibility

The unit is specifically designed for compatibility with Mercedes-Benz vehicles. It features specialized port configurations including M22x1.5 VOSS and M16x1.5 VOSS connections to ensure secure pneumatic integration within the braking circuit.

Installation and maintenance

For correct installation, technicians should verify that the M22x1.5 and M16x1.5 VOSS ports align with the existing lines. This valve is rated for a maximum pressure of 8.5 BAR and includes an integrated silencer to manage exhaust air flow effectively during braking cycles.

System performance

Regular inspection of the pneumatic connections and silencer functionality is recommended to maintain optimal braking performance and system responsiveness.

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 0044296344.

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

Repair Kits

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
DAF
MAN
MERCEDES BENZ
ProVia
SCANIA
WABCO

FAQ

What is the function of this relay valve?
It facilitates rapid air pressure transfer in compressed air brake systems via a pilot signal, ensuring efficient braking response.
What are the port specifications for this part?
This component features M22x1.5 VOSS ports (Port 1 and 2) and an M16x1.5 VOSS port (Port 4).
What is the maximum operating pressure?
The relay valve is rated for a maximum operating pressure of 8.5 BAR.
Is this part compatible with Mercedes-Benz?
Yes, this relay valve is designed to be compatible with Mercedes-Benz vehicle braking systems.
What are the OE reference numbers of this part?
303.01.0002 directly replaces Mercedes-Benz OE number 0044296344.