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303.14.0027 ABS Solenoid Modulator Valve for WABCO systems

303.14.0027

Summary

This ABS solenoid modulator valve is engineered for heavy commercial vehicle braking systems. It features 1/2-14 NPTF port sizes, a maximum operating pressure of 11 Bar, and a 12V DC electrical connection. Designed for reliability in demanding environments. Equivalent to OE WABCO 4721950940.

Product identifiers
EAN Code8683457047587
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Compatible OEM Codes

  • WABCO
    • 472 195 094 0

Description

What does an ABS solenoid modulator valve do?

This ABS solenoid modulator valve plays a critical role in the anti-lock braking system by modulating brake pressure to prevent wheel lock-up during deceleration. By responding to signals from the electronic control unit, this component ensures stable braking performance and vehicle stability under heavy-duty conditions.

System compatibility and technical specifications

The valve is compatible with WABCO systems and is designed to function within complex pneumatic brake circuits. It features 1/2-14 NPTF ports and operates at a maximum pressure of 11 Bar, ensuring precise pressure modulation for heavy commercial vehicle applications.

Installation and maintenance guidance

For proper installation, technicians should verify that the 12V DC electrical connection is secure and check that the port fittings are seated correctly to prevent pneumatic leaks. Regular inspection of the electrical housing and connection points is recommended during routine brake system maintenance to ensure continued signal integrity.

Troubleshooting and selection

Maintaining correct operating pressure and ensuring clean pneumatic lines helps prevent premature wear of the internal solenoid components. Check the compatibility list to ensure this part meets the specific requirements of your braking system.

OE cross-reference

303.14.0027 (ABS Solenoid Modulator Valve) is the equivalent of the WABCO OE number. This part directly replaces WABCO OE number 4721950940.

Technical Specifications

Technical Specifications
Port 11/2-14 NPTF
Port 21/2-14 NPTF
PressureMax.11 Bar
Electrical Connection12V DC ED 5% /min <2.22 A Bayonet:Dın 72585-A1-3.1-Sn/K1

Other OEMs

WABCO

  • 4721950940
  • 472 195 094 0

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
WABCO

FAQ

What is the function of an ABS solenoid modulator valve?
The valve modulates brake pressure in response to signals from the ABS ECU to prevent wheel lock-up, helping maintain steering control during braking.
What are the technical connection specifications for this valve?
This component features 1/2-14 NPTF port sizes and requires a 12V DC electrical connection for proper operation.
What is the maximum operating pressure for this component?
This solenoid modulator is designed to operate at a maximum pressure of 11 Bar within the vehicle's pneumatic braking system.
Is an ABS solenoid modulator valve the same as an ABS relay valve?
Yes, these terms are often used interchangeably to describe the electromagnetic valve that modulates brake pressure based on ECU commands.
What are the OE reference numbers of this part?
303.14.0027 directly replaces WABCO OE number 4721950940.