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303.04.0020 ECAS Solenoid Valve, Suspension

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303.04.0020 Mercedes-Benz compatible ECAS Solenoid Valve

303.04.0020

Summary

This ECAS solenoid valve is engineered for heavy commercial vehicle suspension systems. It features M22x1.5 VOSS ports, a 20 BAR pressure rating, and a 24V Bayonet DIN 72585 connection, ensuring precise control within Mercedes-Benz and WABCO systems. Equivalent to OE Mercedes-Benz 0003278525 and WABCO 4728800000.

Product identifiers
EAN Code8683457042360
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Compatible OEM Codes

  • WABCO
    • 472 880 000 0
  • MERCEDES BENZ
    • 000 327 85 25

Description

What does an ECAS solenoid valve do?

This ECAS solenoid valve plays a critical role in the electronic control air suspension system by managing air distribution to the bellows. Built with high-strength components, it ensures reliable pneumatic modulation under demanding operating conditions, maintaining the vehicle's stability and ride height accuracy.

Vehicle and system compatibility

The component is designed for compatibility with Mercedes-Benz vehicles and is also suitable for use in systems utilizing WABCO technology. Its precise electrical interface ensures seamless communication with the vehicle's electronic control unit.

Installation and maintenance guidance

For installation, technicians should verify the 24V Bayonet DIN 72585 A1-4.1-Sn/K2 electrical connection and ensure all M22x1.5 VOSS ports are properly seated to prevent leaks. Regular inspection of the integrated silencer and connection points is recommended to maintain optimal suspension performance.

Troubleshooting tips

When troubleshooting suspension leveling issues, check the electrical integrity of the solenoid and ensure the 20 BAR pressure capacity is not exceeded by system malfunctions.

OE cross-reference

303.04.0020 (ECAS Solenoid Valve) is the equivalent of the Mercedes-Benz and WABCO OE numbers. This part directly replaces Mercedes-Benz OE number 0003278525. It also replaces WABCO OE number 4728800000.

Technical Specifications

Technical Specifications
Pressure20 BAR
Port 11M22x1,5 VOSS
Port 22M22x1,5 VOSS
Port 21M22X1,5 VOSS
Port 23M22X1,5 VOSS
Description-
Port 3-
Electrical ConnectionBayonet DIN 72585 A1-4.1-Sn/K2 /24V
SilencerOK

Other OEMs

MERCEDES BENZ

  • A0003278525
  • 000 327 85 25

WABCO

  • 4728800000
  • 472 880 000 0

Related Products

Repair Kits

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
MERCEDES BENZ
WABCO

FAQ

What is the primary function of this ECAS solenoid valve?
It controls the air flow within the electronic air suspension system to manage vehicle leveling and stability.
Which vehicle brands are compatible with this part?
This component is compatible with Mercedes-Benz vehicles and integrates with WABCO systems.
What are the technical port specifications?
The unit features M22x1.5 VOSS ports (Ports 11, 21, 22, and 23) and operates at a pressure of 20 BAR.
What type of electrical connection does it require?
It uses a 24V Bayonet DIN 72585 A1-4.1-Sn/K2 electrical connection for secure integration.
What are the OE reference numbers of this part?
303.04.0020 directly replaces Mercedes-Benz OE number 0003278525. It also replaces WABCO OE number 4728800000.