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Worcester Bosch Shutoff Valve 1/2

Worcester Bosch

Worcester Bosch Shutoff Valve 1/2

Worcester Bosch 1/2 inch shutoff valve for Greenstore combi and system gas boilers.

At a glance

  • Also known as SHUTOFF-VALVE-12, 1022357
Manufacturer part no.
87174052490
Showing prices

£31.54

£26.28 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 Shutoff valve 1/2 is a Worcester Bosch isolation valve used on Greenstore combi and system gas boilers. It isolates the water circuit so that components can be serviced or removed without draining the appliance. The valve is a 1/2 inch fitting and carries the manufacturer part number 87174052490.

Signs this part needs replacing

  • The valve body or spindle is weeping or showing a visible water trail
  • The valve will not shut off fully when turned, so the circuit cannot be isolated
  • The handle or spindle turns without resistance or has seized solid
  • Scale or corrosion has built up around the valve seat
  • The valve has been disturbed during servicing and no longer seals

Before you order

  • Confirm the part number 87174052490 matches the valve fitted to the appliance
  • Check the connection size on the existing valve is 1/2 inch
  • Verify the boiler model against the fit list above
  • Confirm whether the valve is being replaced as a precaution or because it is leaking

Not sure which part?

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