Description

Expansion Vessel For Worcester Bosch 6 Litre MPN 87161055450

This Worcester Bosch expansion vessel is a key part of your boiler’s pressure system. The 6 litre expansion vessel ensures safe operation by absorbing pressure changes in sealed heating circuits. Designed for reliability, the part number 87161055450 is compatible with a wide range of Worcester Bosch boilers.

Compatible Boilers

For easy identification, this part is compatible with the following Worcester Bosch models:

Greenstar i System Series:

• Greenstar 12i System (GC No. 41-311-67)

• Greenstar 12i System LPG (GC No. 41-311-69)

• Greenstar 15i System (GC No. 41-311-84)

• Greenstar 15i System LPG (GC No. 41-311-85)

• Greenstar 18i System (GC No. 41-311-86)

• Greenstar 18i System LPG (GC No. 41-311-87)

• Greenstar 24i System (GC No. 41-311-68)

• Greenstar 24i System LPG (GC No. 41-311-70)

Greenstar i Junior HE Series:

• Greenstar 24i Junior HE (GC No. 47-311-86)

• Greenstar 24i Junior HE LPG (GC No. 47-311-90)

• Greenstar 24i Junior HE Mk5 2013 NG/LPG (GC No. 47-406-54)

• Greenstar 28i Junior HE (GC No. 47-311-87)

• Greenstar 28i Junior HE LPG (GC No. 47-311-91)

• Greenstar 28i Junior HE Mk5 2013 NG/LPG (GC No. 47-406-56)

Greenstar Si Series:

• Greenstar 25Si (GC No. 47-311-84)

• Greenstar 25Si LPG (GC No. 47-311-88)

• Greenstar 30Si (GC No. 47-311-85)

• Greenstar 30Si LPG (GC No. 47-311-89)

24i/28i Junior RSF Series:

• 24i Junior RSF (GC No. 47-311-69)

• 24i Junior RSF LPG (GC No. 47-311-71)

• 28i Junior RSF (GC No. 47-311-70)

• 28i Junior RSF LPG (GC No. 47-311-72)

Why Choose This Product?

This 6 litre expansion vessel helps stabilize pressure, reduce system strain, and extend boiler life. It’s fully refurbished by professionals and rigorously tested for performance. The 87161055450 parts ensures a snug fit and consistent operation. You’ll save money compared to a new part—without sacrificing quality.

Delivery and Return 

Order before 2 PM for same-day dispatch. Choose standard or next-day delivery at checkout. Returns are accepted within 14 days if items remain unused and in original condition.

Reminder: Always have a Gas Safe registered engineer install or inspect boiler components.