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Pilot Burner Nozzle (D= 0.18 MM)

Part number (MPN)
040550
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Type your appliance model: we compare it with the 4 appliances in our sources.

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Guide price (£)
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Source
retailer parts list
checked 2026-11-06
Fitting notes

Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.

Compatible appliances

Always check the model and serial number on the data plate before ordering.

Frequently asked questions

Which appliances does 040550 fit?

The sources we checked list 040550 (Pilot Burner Nozzle (D= 0.18 MM), Vaillant) for: MAG 14-0/0 XZ (2004-2010 ), MAG MINI 11-0/0 XZ (2004-2010, Vaillant MAG 125/11 Xz (1997-1999), Vaillant MAG 125/7 So25 (1977-1996). Always check the model and serial number on the data plate before ordering.

Does 040550 have equivalent or superseded part numbers?

The sources we checked list no equivalents for 040550. Ask a Vaillant stockist to confirm.

What should I check before fitting 040550?

Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.

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Some lists are dated and the part may have been superseded. Information only, compatibility not guaranteed.