Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Worcester Bosch Inlet Upper 87186804490

Worcester Bosch

Worcester Bosch Inlet Upper 87186804490

Worcester Bosch inlet upper 87186804490, a hydraulic fitting for Greenstar Heatslave II boilers, supplied singly with a 1 year guarantee.

At a glance

  • Part type: Adaptors & connectors
  • Also known as 1022570
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87186804490
GC number
H71-428
Showing prices

£27.47

£22.89 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 inlet upper (87186804490) is a hydraulic fitting used in the water circuit of Greenstar Heatslave II appliances. It forms the upper section of the inlet assembly, connecting and directing flow within the unit so the hydraulic side of the boiler continues to work as designed. It is supplied as a single component.

Signs this part needs replacing

  • Water weeping or a visible drip around the inlet connection
  • Loss of pressure in the heating or hot water circuit
  • Scale, corrosion or pitting on the inlet body
  • Difficulty seating or sealing the connection during a service
  • Unusual noise or vibration from the hydraulic assembly

Before you order

  • Check the GC number on the appliance data badge against the compatibility list before ordering.
  • Confirm that part number 87186804490 matches the component being removed.
  • Inspect the existing seal or gasket on removal and replace it if it is damaged.
  • 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.