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Worcester Bosch Combustion Chamber Seal Plate 87107031820

Worcester Bosch

Worcester Bosch Combustion Chamber Seal Plate 87107031820

Worcester Bosch combustion chamber seal plate, part 87107031820, for Greenstar combi and condensing models; supplied singly.

At a glance

  • Part type: Gaskets, seals and O-rings
  • Also known as 1012437
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87107031820
GC number
E74-518
Showing prices

£40.63

£33.86 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 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 combustion chamber seal plate is a Worcester Bosch sealing component that closes the combustion chamber opening on Greenstar gas boilers. It forms the gas-tight boundary between the combustion chamber and the surrounding casing, so the seal must be sound for correct combustion and safe flue operation. The plate is supplied as a single item and is listed under Worcester Bosch's gaskets, seals and O-rings range.

Signs this part needs replacing

  • Visible distortion, cracking or hardening of the seal plate or its sealing face
  • Soot staining, discolouration or heat marks around the combustion chamber cover
  • Water or condensate traces weeping past the combustion chamber joint
  • Combustion readings drifting outside the expected range on a flue gas analyser
  • A smell of combustion products or evidence of leakage at the chamber joint during a service

Before you order

  • Check the appliance GC number and model against the compatibility list before ordering, as the same part number covers a number of Greenstar variants.
  • Confirm the number on the existing component or in the appliance documentation matches 87107031820 or the alternative number 1012437.
  • Assess whether any associated gaskets, seals or fixings disturbed during removal also need replacing.
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

Not sure which part?

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