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Worcester Bosch Flow Sensor Housing 87107157510

Worcester Bosch

Worcester Bosch Flow Sensor Housing 87107157510

Worcester Bosch flow sensor housing (87107157510) for Greenstar RSF combi and ZWBR 11-25 A31 LPG boilers.

At a glance

  • Part type: Flow sensor housing
  • Also known as 1012451
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87107157510
Showing prices

£209.93

£174.94 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 87107157510 is a flow sensor housing used in Greenstar series boilers. It houses the flow sensor that detects water flow through the domestic hot water circuit. This component is essential for the boiler to recognise demand for hot water and initiate heating.

Signs this part needs replacing

  • Boiler fails to fire when a hot water tap is opened
  • Intermittent or no hot water
  • Water leaking from the flow sensor housing area
  • Error code relating to flow or water pressure
  • Reduced domestic hot water performance

Before you order

  • Check the GC number and appliance model against the compatibility list.
  • The alternative part number 1012451 may be listed on older documentation.
  • Check whether a new gasket or O-ring is required when replacing the housing.
  • 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.