7421379051 Compatible Exhaust Brake Valve — Renault Trucks

What does an exhaust brake valve do?

This exhaust brake valve serves as a critical component within the engine braking system, specifically designed to regulate exhaust gas flow. By restricting the flow of gases, it facilitates engine compression braking, which assists in slowing the vehicle during descent or heavy load deceleration. This component is engineered to meet high-strength requirements for heavy commercial vehicle applications.

Vehicle and engine compatibility

This specific part is compatible with Renault Trucks C series models, including variants such as the 430T, 460P, 380PK, and 250PK, specifically when equipped with DTI13 engines. It is also fitted to other Renault Trucks C models like the C520 and C480. These components are essential for maintaining reliable braking performance in various fleet operations.

Installation and maintenance

For workshop technicians and fleet managers, ensuring correct installation is vital for system integrity. The valve operates via pneumatic actuation, often controlled by the electronic control unit to manage engine braking force. Regular inspections of the actuator and housing are recommended during routine maintenance to prevent pressure loss or improper gas flow.

System reliability and selection

When replacing this component, verify that all mounting hardware is secure and that seals are in optimal condition to maintain the vacuum/pressure integrity required for effective braking.

OE cross-reference

303.11.0057 (Exhaust Brake Valve) is the equivalent of the Renault Trucks OE number. This part directly replaces Renault Trucks OE number 7421379051.