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Worcester Bosch Casing Assembly 87186862900

Worcester Bosch

Worcester Bosch Casing Assembly 87186862900

Worcester Bosch casing assembly (back panel), part 87186862900, for Greenstar Compact combi and system boilers.

At a glance

  • Part type: Casing assembly
  • Appliance family: Greenstar Compact
  • Also known as 1030971
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87186862900
GC number
J04-495
Showing prices

£7.90

£6.58 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 Worcester Bosch 87186862900 is a casing assembly for the Greenstar Compact range of gas boilers. It forms the rear section of the appliance casing, closing off the back of the boiler and shielding the internal components and heat exchanger from the wall and surrounding fabric. It is supplied as a complete assembly rather than a loose panel, so it is replaced as a single unit when the original has corroded, deformed or been damaged during servicing.

Signs this part needs replacing

  • Rust or corrosion along the rear panel, particularly around the flue and pipe entry points
  • Dents, creasing or distortion that stops the casing sitting square against the wall
  • Flaking or blistered paint finish on the panel surface
  • Damaged or elongated mounting holes, so the panel no longer clamps up tight
  • Water staining or scorch marking on the rear face, indicating a leak or heat damage behind the casing

Before you order

  • Check the model and GC number of your appliance against the compatibility list before ordering, as the same casing shape is used across several Greenstar Compact variants.
  • Quote part number 87186862900, or the alternative number 1030971, when confirming the part with your supplier.
  • Inspect the seals and gaskets around the flue and pipe entries while the casing is off, and replace any that are perished.
  • 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.