Worcester Expansion Vessel 9 Ltr 87161425040

Sealed System Oil Danesmoor 241 Standard Efficiency was 10 Ltr

The Worcester Bosch Expansion Vessel 87161425040 is a genuine 9-litre expansion vessel used in Worcester Bosch combi and system boilers. It absorbs pressure increases caused by water expansion during heating cycles, protecting the boiler and system components from overpressure.

A faulty expansion vessel can cause pressure fluctuations or boiler lockouts, making timely replacement essential.

• Genuine Worcester Bosch part

• Part number: 87161425040

• 9-litre expansion vessel

• Maintains stable pressure in sealed systems

• Suitable for Greenstar and other Worcester models

• Helps prevent pressure-related boiler faults

Ideal for restoring safe and reliable pressure regulation in domestic heating systems.