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Worcester Bosch Seal 31 Tube Secondary 87186800930

Worcester Bosch

Worcester Bosch Seal 31 Tube Secondary 87186800930

Secondary tube seal, part 87186800930, for Worcester Bosch Greenstar Danesmoor HE 50/70-OOO-GB appliances built after FD882.

At a glance

  • Appliance family: Greenstar Danesmoor HE
  • Also known as 1022541
Manufacturer part no.
87186800930
Showing prices

£112.22

£93.52 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 87186800930 is a secondary tube seal for the Greenstar Danesmoor HE range. It seals the secondary tube connection on the appliance to prevent water loss at that joint. This version is specified for units built after FD882.

Signs this part needs replacing

  • Water weeping or dripping from the secondary tube joint
  • The seal looks hardened, cracked or flattened
  • Scale or corrosion deposits around the seal seating
  • Pressure loss on the heating circuit with no other obvious cause

Before you order

  • Confirm your appliance model matches the fitment listed above
  • Check the appliance FD number is after FD882
  • Verify the part number 87186800930 against the manufacturer's parts list

Not sure which part?

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