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Worcester Bosch Motor (3-Way Valve) 87186445640

Worcester Bosch

Worcester Bosch Motor (3-Way Valve) 87186445640

Three-way valve motor for Worcester Bosch Greenstar 2000 and GR2300iW combi boilers, part number 87186445640.

At a glance

  • Appliance family: Worcester Greenstar 2000 and GR2300iW combi boilers
  • Also known as 2244692
Manufacturer part no.
87186445640
Showing prices

£101.40

£84.50 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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 Motor (3-Way Valve) is a motor unit that drives the three-way valve on Worcester Bosch Greenstar combi boilers. It operates the valve that switches the boiler between central heating and domestic hot water production. This part carries the manufacturer part number 87186445640.

Signs this part needs replacing

  • The boiler stays in heating mode when hot water is drawn, or runs heating when only hot water is demanded
  • Domestic hot water is not produced despite a demand at the tap
  • The valve does not move when the boiler changes between heating and hot water modes
  • No motor movement or drive noise is heard from the valve head when the boiler switches mode
  • The boiler displays a diverter valve related fault or locks out during a mode change

Before you order

  • Confirm the boiler model matches one of the appliances listed in the Fits section
  • Check the GC number on the appliance data badge against your model variant
  • Confirm the existing part number is 87186445640 before ordering
  • Establish whether the valve body also requires attention, as this item is the motor unit

Not sure which part?

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