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Saunier Duval Connector Gas Valve S1044000

Saunier Duval

Saunier Duval Connector Gas Valve S1044000

Gas valve connector for Saunier Duval Isofast Condens F35E and Isotwin Condens F35E boilers.

At a glance

  • Part type: gas valve connector
  • Also known as 1420619
  • Gas-carrying components must be fitted and commissioned by a competent Gas Safe registered engineer
Manufacturer part no.
S1044000
Showing prices

£23.60

£19.67 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 Connector Gas Valve is a Saunier Duval component used to connect the gas valve within the boiler's gas train. It is listed for the Isofast Condens F35E and Isotwin Condens F35E appliance families. The part carries the manufacturer reference S1044000.

Signs this part needs replacing

  • A detectable gas smell around the gas valve connection
  • Leak detection fluid bubbling at the connector joint
  • Corrosion, staining or visible damage on the connector body
  • Difficulty achieving a gas-tight seal when the joint is remade
  • Boiler failing to fire or locking out after gas train work

Before you order

  • Confirm the appliance model is Isofast Condens F35E or Isotwin Condens F35E
  • On Isofast Condens F35E, check the serial number against 0400446159 to select the correct variant
  • Check the existing part number on the component matches S1044000
  • Gas-carrying components must be fitted and commissioned by a competent 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.