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Worcester Bosch DHW Filter Insert DCW 87161064860

Worcester Bosch

Worcester Bosch DHW Filter Insert DCW 87161064860

Worcester Bosch 87161064860 DHW filter insert for the flow switch section of Greenstar combi boilers; pack of 1.

At a glance

  • Part type: filters and strainers
  • Also known as 1014933
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87161064860
GC number
H09-671
Showing prices

£7.03

£5.86 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 87161064860 is a domestic hot water (DHW) filter insert manufactured by Worcester Bosch. It sits in the hydraulic assembly around the flow switch section of the appliance. The flow switch is a safety device containing an in-built sensor mounted in the pipework serving both the DHW and central heating circuits; it registers that the pump is running and confirms water movement through the boiler. The filter insert protects that sensing point by trapping debris carried in the system water before it reaches the switch.

Signs this part needs replacing

  • Reduced or inconsistent hot water flow at the taps while the boiler is running
  • The flow switch failing to register pump operation, leading to ignition or demand faults
  • Visible debris, scale or discoloured deposits on the insert when it is removed for inspection
  • Sludge or magnetite collecting in the hydraulic block around the flow switch section
  • Repeated lockouts or fault codes linked to water flow through the DHW circuit

Before you order

  • Check the GC number and appliance serial plate to confirm the boiler model before ordering
  • Confirm the part number 87161064860 or the alternative number 1014933 against the existing component
  • Inspect the surrounding seals and gaskets while the hydraulic section is open and replace any that are 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.