Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Hanicks
Basket
Worcester Bosch Condensate Outlet Adaptor 87186813920

Worcester Bosch

Worcester Bosch Condensate Outlet Adaptor 87186813920

Worcester Bosch 87186813920 condensate outlet adaptor for Greenstar FS and Highflow models, carrying condensate from the trap to the drain.

At a glance

  • Part type: Condensate assembly
  • Also known as 1022643
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87186813920
GC number
H71-333
Showing prices

£1.45

£1.21 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 87186813920 is a condensate outlet adaptor supplied as part of the condensate assembly on Worcester Bosch gas appliances. It sits at the outlet side of the condensate trap and siphon arrangement, directing condensate away from the heat exchanger and into the discharge pipework. The part is used across the Greenstar FS and Highflow families, where reliable condensate removal is essential to continued operation.

Signs this part needs replacing

  • Condensate pooling beneath the appliance or around the trap body
  • Cracks, perishing or a loose fit where the adaptor joins the outlet pipework
  • Damp patches or staining on the casing or surrounding surfaces along the condensate route
  • Repeated trap blockages or slow, restricted drainage from the condensate outlet
  • Boiler lockout or fault indications associated with condensate disposal

Before you order

  • Check the GC number and the appliance data plate to confirm the model appears in the compatibility list.
  • The alternative number 1022643 may be shown on older documentation for the same item.
  • Inspect the trap and its seals while access is available; a replacement gasket or seal may be needed if the existing one is 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.