The Worcester Bosch 87161056520 Junior Fan is a genuine replacement combustion airflow component engineered to maintain correct air movement through the combustion chamber and flue system of your boiler. By drawing in the right amount of air needed for efficient combustion and expelling flue gases safely, this fan supports reliable ignition, stable flame performance and consistent heat output. When a fan becomes worn, noisy, or fails, issues such as delayed ignition, unusual noises or boiler lockouts can occur, making proper replacement essential for dependable operation.

This fan is compatible with Worcester Bosch Junior series boilers that reference part number 87161056520 in their technical documentation. To ensure correct fitment and optimal performance, always verify the number on your existing fan or consult your boiler’s service information before installation, as airflow components can vary between models and configurations.

Supplied ready for direct replacement, the 87161056520 Junior Fan connects with the boiler’s existing mounting points and electrical harness without modification when fitted by a qualified engineer. Choosing this genuine Worcester Bosch component helps ensure proper combustion airflow, improved ignition reliability and dependable heating performance in compatible Junior boilers.