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Contact Spring

Part number (MPN)
2051000
Check compatibility

Type your appliance model: we compare it with the 12 appliances in our sources.

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Parts for the same appliances

OEM Replacement Part & Compatibility Table

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Guide price (£)
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Source
retailer parts list
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. 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 2051000 fit?

The sources we checked list 2051000 (Contact Spring, Sime) for: CAST IRON 1R OF COMBI OIL, CAST IRON 2R OF COMBI OIL, CAST IRON RS 129 MK2 SYSTEM NG, CAST IRON RS 172 MK2 SYSTEM NG, CAST IRON RS 194 MK2 SYSTEM NG, CAST IRON RS 215 MK2 SYSTEM NG, CAST IRON RS 258 MK2 SYSTEM NG, CAST IRON RS 279 MK2 SYSTEM NG, CAST IRONRMG 70 MK2 REGULAR NG, CAST IRONRMG 80 MK2 REGULAR NG, RX 48 NG, RX 55 NG. Always check the model and serial number on the data plate before ordering.

Does 2051000 have equivalent or superseded part numbers?

The sources we checked list no equivalents for 2051000. Ask a Sime stockist to confirm.

What should I check before fitting 2051000?

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Some lists are dated and the part may have been superseded.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.