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Worcester Bosch Pipe Siphon Drain 87186805330

Worcester Bosch

Worcester Bosch Pipe Siphon Drain 87186805330

Pipe siphon drain for Worcester Bosch Greenstar condensing boilers, part of the condensate trap assembly.

At a glance

  • Also known as 1022588
Manufacturer part no.
87186805330
GC number
H71-337
Showing prices

£4.04

£3.37 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 87186805330 is a pipe siphon drain for Greenstar condensing boilers. It forms part of the condensate trap assembly, managing condensate drainage from the appliance. It is a serviceable component within the boiler's condensate system.

Signs this part needs replacing

  • Water leaking from the condensate trap area
  • Boiler locking out or showing a condensate-related fault code
  • Gurgling or draining noises from the boiler
  • Visible cracks, damage or scaling on the siphon body
  • Water not draining away, causing the trap to overflow

Before you order

  • Confirm your boiler model matches one in the Fits list
  • Check the part number on the existing component or in the manufacturer's parts list
  • Inspect the condensate trap assembly for any other damaged components
  • Ensure safe isolation of the boiler before fitting

Not sure which part?

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