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Worcester Bosch Condensate Pump Greenstar 8716118488

Worcester Bosch

Worcester Bosch Condensate Pump Greenstar 8716118488

Worcester Bosch condensate pump, part 8716118488, for Greenstar FS and Highflow models; GC number H66-921.

At a glance

  • Part type: Condensate pump
  • Also known as WB8716118488, 1021953
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
8716118488
GC number
H66-921
Showing prices

£468.46

£390.38 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 condensate pump, part number 8716118488, is the pump that moves collected condensate away from the appliance. Condensate forms as flue gases cool within the heat exchanger, and the pump lifts that water from the trap out to the discharge pipework so it can leave the property. It is used across the Greenstar family of Worcester Bosch appliances.

Signs this part needs replacing

  • Condensate collecting around the appliance or beneath the casing
  • The appliance locking out, or a condensate-related fault code appearing
  • Gurgling, trickling or repeated running noises from the condensate route
  • The pump running continuously, or failing to run when the trap fills
  • Water backing up in the trap and overflowing instead of discharging

Before you order

  • Check the appliance GC number and model against the compatibility list before ordering.
  • Confirm the number on the existing pump matches 8716118488 or one of the previous numbers listed below.
  • 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.