PartsByCodespare parts by code

Collar

Part number (MPN)
3006903

OEM Replacement Part & Compatibility Table

Brand
Guide price (£)
Not available: check the current price with the seller
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

  • Riello 40 GS3 551T56 3755156

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

Frequently asked questions

Which appliances does 3006903 fit?

The sources we checked list 3006903 (Collar, Riello) for: Riello 40 GS3 551T56 3755156. Always check the model and serial number on the data plate before ordering.

Does 3006903 have equivalent or superseded part numbers?

The sources we checked list no equivalents for 3006903. Ask a Riello stockist to confirm.

What should I check before fitting 3006903?

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.

Related parts

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Some lists are dated and the part may have been superseded.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