Worcester Bosch Return Manifold Sub Assembly 87161064420

This is a genuine Worcester Bosch Return Manifold Sub-Assembly, model 87161064420, designed to support reliable operation of compatible heating and hot water systems. It plays a key role within the pump section, helping circulating water move efficiently around a closed heating circuit and contributing to consistent performance and system protection. The part is manufactured to Worcester’s standards and carries a manufacturer’s guarantee, ensuring long-term durability and trustworthy operation in eligible appliances.

In combi boilers, the pump is located before the diverter valve, which allows circulation through both Domestic Hot Water and Central Heating circuits. This Return Manifold Sub-Assembly is intended to be used within that flow path to maintain proper water movement and system function. The unit comes with clips, nuts and seals to support straightforward installation and secure fitting, aligning with the needs of Worcester Bosch installations.

Compatible with Greenstar CDi/Junior models, this sub-assembly is a genuine replacement designed to restore or maintain performance in heating and hot water systems. It supports efficient operation by ensuring the pump and associated components function together as intended, helping to preserve reliability and protect the appliance’s overall operation.

Features

• Genuine Worc ster product, model 87161064420
• Return manifold sub-assembly in the pump section
• Located before diverter valve in combi boilers
• Allows DHW and CH circulation through the system
• Includes clips, nuts and seals
• Suitable for Greenstar CDi/Junior models