21991154 Volvo FMX III Exhaust Brake Valve

What does an exhaust brake valve do?

This exhaust brake valve plays a critical role in the engine braking system of heavy commercial vehicles, helping to regulate exhaust gas flow to assist in deceleration. Built with high-strength components, this part ensures stable performance under demanding operating conditions for the vehicle's engine system.

Compatible Volvo truck models

This component is specifically engineered for Volvo FMX III, FMX II, and FM series trucks. It provides precise control for various engine configurations including the 540, 500, 460, and 420 variants. It is also fitted to various other Volvo engine models used in heavy-duty applications.

Maintenance and installation

For optimal service life, technicians should inspect the valve during routine engine maintenance intervals. Checking the integrity of the seals and ensuring no debris enters the pneumatic lines will prevent premature wear of the internal mechanisms.

Selection guidance

When replacing this component, always ensure it matches the specific engine type and emission standards of the truck to maintain correct braking pressure and engine efficiency.

OE cross-reference

303.11.0057 (Exhaust Brake Valve) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21991154.