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Saunier Duval Heating Cock (Isolation Valve) S1007500

Saunier Duval

Saunier Duval Heating Cock (Isolation Valve) S1007500

Genuine Saunier Duval heating cock that isolates the flow of water into the central heating circuit, fitted to Themaclassic, Thema Condens, Enviroplus and Isotwin Condens boilers.

At a glance

  • Also known as 1416141
Manufacturer part no.
S1007500/SD
Showing prices

£99.36

£82.80 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 S1007500 is a genuine Saunier Duval heating cock (isolation valve) fitted beneath the boiler. It lets an engineer restrict or shut off the flow of water into the central heating circuit, including isolating the system during a leak or repair.

Signs this part needs replacing

  • Valve weeps or drips when in the closed position
  • Handle is seized, won't turn, or turns without shutting off flow
  • Visible corrosion or limescale build-up around the spindle
  • Boiler needs isolating for a repair and the existing cock won't hold

Before you order

  • Confirm the part number printed on the existing cock matches S1007500
  • Drain down or isolate the system before removal, following safe working practice
  • Check whether a matching gas cock also needs replacing at the same time

Not sure which part?

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