WABCO part description

Proportional Relay Valve

WABCO EBS Proportional Relay Valve

Achieve superior control and smooth braking performance for your trailer’s Electronic Braking System (EBS) with the WABCO EBS Proportional Relay Valve. This component acts as the conductor of your trailer's EBS, translating electronic signals from the EBS control unit into precise modulations of air pressure within the braking system. Featuring WABCO's innovative Proportional Solenoid technology, this valve ensures a linear relationship between the electrical signal and the resulting air pressure, enabling smooth and graduated braking application. With these features, the WABCO 4802020040 delivers exceptional driver feel and minimizes the risk of wheel lockup during hard braking or on slippery surfaces.

Features & Benefits

  • Ensures linear relationship between the electrical signal and air pressure for precise braking control
  • Smooth and predictable braking, minimizes jerky braking sensations and ensures a comfortable driving experience
  • Reduces risk of wheel lockup during hard braking or on slippery surfaces with precise pressure control
  • Enables drivers to modulate braking force with greater precision, improving overall stopping performance
  • Helps translate electronic signals into precise air pressure modulations for efficient EBS operation.

WABCO 4802020040 Cross Reference

We have 6 alternatives for the 4802020040 by WABCO:

Whether it’s for cars, buses, trucks, or trailers, WABCO® is at the frontline at developing and providing products and systems to make vehicles safer and easier to control. Founded in 1869, WABCO is a major supplier of braking, stability, suspension and transmissions in the Americas and beyond. The company is recognized as introducing the modern air brake system in 1869, and continues to lead the industry in air brake design and production for the heavy duty and commercial vehicle sectors. Today, WABCO operates as a division of the German auto parts maker ZF and employs 16,000 employees in facilities in 36 countries worldwide.

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