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Worcester Bosch Fan Assembly 87172043250

Worcester Bosch

Worcester Bosch Fan Assembly 87172043250

Worcester Bosch centrifugal fan assembly, part 87172043250, for Greenstar and British Gas ICC2 condensing combi and system boilers.

At a glance

  • Part type: Fan assembly (centrifugal blower)
  • Also known as 1019925, N1762-3
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87172043250
GC number
E74-538
Showing prices

£357.59

£297.99 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 87172043250 is a centrifugal blower fan assembly used in Worcester Greenstar and British Gas ICC2 condensing appliances. It draws combustion air into the burner and pushes flue gases out through the heat exchanger and flue path, so the boiler can maintain a stable, correctly proportioned flame. As a moving, heat-exposed component it is a serviceable item and is replaced as a complete assembly rather than rebuilt on site.

Signs this part needs replacing

  • Boiler locks out or fails to ignite, with a fan or air pressure related fault code logged
  • Grinding, scraping or whining noise from the fan housing on start-up or during the run cycle
  • Fan runs intermittently, at erratic speed, or not at all when the boiler is called for heat
  • Repeated overheat or flame supervision lockouts after the fan has been checked and cleaned
  • Visible damage, play or contamination on the impeller or fan motor windings

Before you order

  • Check the GC number and appliance serial plate against the compatibility list to confirm the correct fan variant for your model.
  • Cross-reference the alternative part numbers below if the existing fan is marked with a different reference.
  • 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.