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Worcester Bosch Exhaust Pipe Union 87107352960

Worcester Bosch

Worcester Bosch Exhaust Pipe Union 87107352960

Worcester Bosch exhaust pipe union (87107352960) for Greenstar and British Gas 430/I, 532/I and 537/I flue assemblies.

At a glance

  • Part type: Flue assembly
  • Also known as 1012555
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87107352960
GC number
H31-831
Showing prices

£21.11

£17.59 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 87107352960 is an exhaust pipe union forming part of the flue assembly on Worcester Bosch and Worcester British Gas condensing boilers. It sits within the internal flue pipework, joining sections of the exhaust route so combustion products are carried safely from the heat exchanger to the terminal. As a gas-carrying flue component it is supplied as a direct replacement for the original union fitted to the Greenstar and British Gas 400 and 500 series ranges.

Signs this part needs replacing

  • Visible corrosion, staining or pitting on the union body or its sealing faces
  • Condensate weeping or water marks around the flue joint
  • Flue gas smell or draught detected at the joint during a combustion check
  • Boiler lockout or flue-related fault codes traced to the exhaust path
  • Discolouration or heat damage on the union after servicing the flue route

Before you order

  • Check the appliance GC number and serial plate against the compatibility list to confirm the union matches your boiler.
  • Confirm the existing part number or the alternative number 1012555 before ordering.
  • Inspect the flue seals and gaskets at the joint and replace them if they are compressed or 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.