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O Ring

Part number (MPN)
6226475
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OEM Replacement Part & Compatibility Table

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checked 2026-11-05
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.

Compatible appliances

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

Frequently asked questions

Which appliances does 6226475 fit?

The sources we checked list 6226475 (O Ring, Sime) for: ADVANCED HE30 COMBI NG, ADVANCED HE30 ERP COMBI NG, ADVANCED HE40 COMBI NG, ADVANCED HE40 ERP COMBI NG, ELITE HE30 ERP COMBI NG, ELITE HE35 ERP COMBI NG, ELITE HE35 TERP SYSTEM NG, MURELLE HE 35 R ERP SYSTEM NG, MURELLE ONE HE25 COMBI NG, MURELLE PRO HE20R SYSTEM NG, MURELLE PRO HE20RERP SYSTEM NG, MURELLE PRO HE25 COMBI NG, MURELLE PRO HE30 COMBI NG, MURELLE PRO HE30R SYSTEM NG, MURELLE PRO HE30RERP SYSTEM NG; Murelle HM 35 ErP, Murelle EV HE 30, Brava One 25 OF. Always check the model and serial number on the data plate before ordering.

Does 6226475 have equivalent or superseded part numbers?

The sources we checked list no equivalents for 6226475. Ask a Sime stockist to confirm.

What should I check before fitting 6226475?

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.

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Some lists are dated and the part may have been superseded.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