The Worcester Bosch 87154072960 Expansion Vessel is a genuine replacement pressure-management component designed to absorb increases in water volume and pressure within your central heating system. As your boiler heats water, the expansion vessel accommodates the natural expansion of water, helping maintain stable system pressure and protecting internal components such as pumps, seals and valves from undue stress. A correctly functioning expansion vessel also helps reduce the frequency of low-pressure faults, improves heating consistency and supports quieter operation.

This 7-litre expansion vessel is compatible with Worcester Bosch EMS Combi, Classic and Danesmoor series boilers that specify part number 87154072960 in their technical documentation. To ensure correct fitment and dependable operation, always verify that the part number matches your existing vessel or consult your boiler’s service information before installation, as vessel sizes and capacities vary between models and system configurations.

Supplied ready for direct replacement, the 87154072960 Expansion Vessel connects to the boiler’s internal pressure line and mounting point without modification when installed by a qualified engineer. Choosing this genuine Worcester Bosch component helps restore proper pressure balance, supports efficient heat distribution and contributes to reliable, trouble-free performance in compatible boiler systems.