5021170452 Compatible Relay Valve — Renault Trucks

What does a relay valve do?

This relay valve functions as a critical pneumatic control unit within the air brake system of heavy commercial vehicles. By receiving the control signal from the brake pedal and feeding the brake chambers directly from the nearest air reservoir, it significantly reduces air lag and improves overall braking response time.

Vehicle compatibility and fitment

Specifically designed for Renault Trucks, this component ensures efficient air pressure delivery. It is built with high-strength components to withstand the demanding operating conditions found in heavy-duty commercial vehicle braking circuits.

Technical specifications

The unit features a specific port configuration with Port 1 at M22x1.5 and Ports 2 and 4 at M16x1.5. It is engineered to operate safely with a maximum pressure of 8 BAR, making it an essential component for maintaining precise braking control and safety during deceleration.

Installation and maintenance

Technicians should verify that all port connections are secure and check for any air leaks during installation to ensure optimal system performance. Consult your authorized distributor for installation guidance.

OE cross-reference

303.01.0005 (Relay Valve Relay Valves) is the equivalent of the Renault Trucks OE number. This part directly replaces Renault Trucks OE number 5021170452.