The Vaillant 0020045977 is a genuine OEM vortex impeller designed for use within the pump or hydraulic components of selected Vaillant boilers. This impeller plays a crucial role in ensuring correct water circulation, maintaining system pressure, and supporting efficient boiler operation.

A worn or damaged impeller can cause reduced flow rates, noisy operation, overheating, circulation errors, and possible boiler lockouts. Replacing it with this genuine Vaillant vortex impeller restores optimal water movement and ensures reliable, efficient performance.

Key Features:

• Genuine Vaillant vortex-style impeller

• Ensures correct water circulation inside the boiler

• Supports stable system pressure and heating performance

• Manufactured to Vaillant’s strict OEM standards

• Helps resolve flow issues, noise, overheating & pump faults

• Durable construction for long-term reliability

• Direct-fit replacement for quick, professional installation

Compatibility

The Vaillant 0020045977 Impeller is compatible with various Vaillant boilers and pump assemblies, including:

• ecoTEC Plus models (specific kW variants)

• ecoTEC Pro models

• Other Vaillant systems listing 0020045977 in their official parts documentation

Engineers should verify exact compatibility using the boiler’s model-specific service manual or parts list.