Skip to content
303.01.0050 Relay Valve, Brake System
944 Views Updated

303.01.0050 Renault Trucks and Van Hool Compatible Relay Valve

303.01.0050

Summary

This relay valve is designed for heavy commercial vehicle air brake systems, ensuring rapid air pressure transfer. It is compatible with Renault Trucks and Van Hool vehicles, providing reliable braking performance through high-strength components. Equivalent to OE Renault Trucks 5001856194, Van Hool 11013952 and WABCO 9730110210.

Product identifiers
EAN Code8683457053410
Ready to Order
Get Information
Share
WhatsApp Facebook X LinkedIn

Compatible OEM Codes

  • WABCO
    • 973 011 021 0
  • VAN HOOL
    • 11013952
  • RENAULT TRUCKS
    • 5001856194

Description

What does a relay valve do?

This relay valve serves as a critical pneumatic control unit within the compressed air brake system of heavy commercial vehicles. By receiving a pilot signal from the brake pedal and redirecting pressurized air directly from the nearest reservoir to the brake chambers, it effectively eliminates air lag caused by long pneumatic lines. This ensures rapid engagement and reliable release speeds for the braking system.

Vehicle and engine compatibility

This component is specifically designed to be compatible with Renault Trucks and Van Hool vehicles. It functions efficiently within the rear axle circuits of trucks and tractor units, as well as in the braking lines of buses. The unit is built to withstand the rigorous demands of heavy-duty commercial operations.

Installation and maintenance

For optimal performance, technicians should inspect the mounting location on the chassis and ensure all connections to the air reservoir are secure. Regular checks of the pneumatic lines and sealing integrity are recommended to maintain consistent braking response times and prevent pressure drops during operation.

Selection guidance

Consult your authorized distributor to ensure correct fitment for your specific vehicle application.

OE cross-reference

303.01.0050 (Relay Valve Relay Valves) is the equivalent of the Renault Trucks, Van Hool and WABCO OE numbers. This part directly replaces Renault Trucks OE number 5001856194. It also replaces Van Hool OE number 11013952 and WABCO OE number 9730110210.

Other OEMs

RENAULT TRUCKS

  • 5001856194

VAN HOOL

  • 11013952

WABCO

  • 9730110210
  • 973 011 021 0

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
RENAULT TRUCKS
VAN HOOL
WABCO

FAQ

What is the function of a relay valve?
A relay valve receives a pilot signal from the brake pedal to rapidly transfer pressurized air from the main reservoir to the brake chambers, reducing braking lag.
Which vehicle brands is this part compatible with?
This part is compatible with Renault Trucks, Van Hool, and systems manufactured by WABCO.
What are common symptoms of a faulty relay valve?
Symptoms may include delayed brake response, slow release of brakes, or uneven braking pressure across the axles.
How is a relay valve installed?
It is typically mounted on the vehicle chassis between the main air reservoir and the brake chambers to optimize air delivery speed.
What are the OE reference numbers of this part?
303.01.0050 directly replaces Renault Trucks OE number 5001856194. It also replaces Van Hool OE number 11013952 and WABCO OE number 9730110210.