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Vaillant Pilot Burner Nozzle 040550

Vaillant

Vaillant Pilot Burner Nozzle 040550

Vaillant pilot burner nozzle, 0.18 mm diameter, for LPG boilers and water heaters.

At a glance

  • Also known as 1372361
Manufacturer part no.
040550
Showing prices

£9.60

£8.00 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 Vaillant 040550 pilot burner nozzle is a metering injector fitted to the pilot burner assembly of Vaillant LPG appliances. It controls the gas flow to the pilot flame, with a bore diameter of 0.18 mm. It is used across a range of Vaillant MAG and SINE boiler and water heater models.

Signs this part needs replacing

  • The pilot flame will not stay lit or extinguishes shortly after ignition
  • A weak, undersized or unstable pilot flame
  • Sooting or discolouration around the pilot burner assembly
  • Difficulty lighting the pilot, or repeated lockouts on ignition
  • Pilot flame height that cannot be corrected by adjustment alone

Before you order

  • Confirm your appliance model against the fitment list above
  • Check that the appliance is running on LPG, as this nozzle is sized for LPG
  • Verify the existing nozzle bore marking matches 0.18 mm
  • Cross-check the part number 040550 on the appliance's parts list before ordering

Not sure which part?

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