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Worcester Bosch Siphon Stop 87161054170

Worcester Bosch

Worcester Bosch Siphon Stop 87161054170

Condensate trap siphon stop, part 87161054170, for Worcester Bosch Greenstar II HE 12/22 ROO oil boilers.

At a glance

  • Also known as 1014565
Manufacturer part no.
87161054170
Showing prices

£37.42

£31.18 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 Siphon Stop (part number 87161054170) is a condensate trap component used on Worcester oil-fired condensing boilers. It sits within the condensate removal path, collecting and discharging the condensate produced during combustion. It is listed in the manufacturer's oil boiler spares range.

Signs this part needs replacing

  • Water leaking from or around the condensate trap
  • Condensate backing up or pooling beneath the boiler
  • Gurgling or bubbling noises from the trap during operation
  • Boiler locking out or failing to fire because condensate cannot discharge
  • Visible cracks, scale or sludge build-up in the trap body

Before you order

  • Confirm the boiler model on the data plate matches the fitment list
  • Check the existing part number against the manufacturer's parts list
  • Inspect the trap and its seals for damage before fitting

Not sure which part?

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