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Worcester Bosch O-Ring 87102050900

Worcester Bosch

Worcester Bosch O-Ring 87102050900

Worcester Bosch O-ring, 9.19mm x 2.62mm, supplied in a pack of 10 for Greenstar 24 FSN-GB and 28 FSN-GB combi NG boilers.

At a glance

  • Also known as 1031497
Manufacturer part no.
87102050900
GC number
J09-214
Showing prices

£6.98

£5.82 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Worcester Bosch 87102050900 is an O-ring seal measuring 9.19mm x 2.62mm, supplied in a pack of 10. It is used on Worcester Greenstar FSN-GB combi gas boilers to seal a joint and prevent leakage. O-rings of this type sit between a component and its mating face to maintain a fluid-tight seal.

Signs this part needs replacing

  • Water weeping or dripping from the joint the O-ring seals
  • Visible cracking, splitting or flattening of the ring
  • The ring has hardened or become brittle with age
  • Scale, debris or corrosion on the sealing face
  • Damp staining or residue around the joint

Before you order

  • Confirm your boiler model matches one of the fitments listed above
  • Check the size of the O-ring being replaced against 9.19mm x 2.62mm
  • Check how many O-rings are required for the job
  • Isolate the appliance and depressurise before starting work

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.