The Worcester Bosch 87161056520 Junior Fan is a genuine OEM replacement unit responsible for maintaining correct airflow and combustion inside your boiler. The fan draws in air and expels flue gases through the terminal, ensuring clean, stable ignition and efficient burner performance. When a fan begins to fail, boilers may lock out, struggle to ignite, or operate noisily, making timely replacement essential for safety and reliability.

This fan assembly is specifically designed for Worcester Bosch Greenstar Junior boilers, including popular models built around the 24i and 28i Junior platform. It is suited to appliances that reference part number 87161056520 on their data label or existing fan. Always verify the exact part code on the boiler components before fitting to ensure correct compatibility.

Engineered for straightforward installation, the 87161056520 Junior Fan connects directly to existing mounting points and electrical plugs, restoring proper airflow without modification. With this genuine replacement part, your Worcester Bosch Junior boiler can return to smooth ignition, efficient combustion and dependable day-to-day heating performance.