PartsByCodespare parts by code

Thermostat - Was a 6173200 & 6118400

Part number (MPN)
6001400
Check compatibility

Type your appliance model: we compare it with the 15 appliances in our sources.

Catalogue numberChecked sources
Direct linkseBay and Amazon
Free to useNo sign-up

Parts for the same appliances

OEM Replacement Part & Compatibility Table

Brand
Guide price (£)
Not available: check the current price with the seller
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 6001400 fit?

The sources we checked list 6001400 (Thermostat - Was a 6173200 & 6118400, Sime) for: CAST IRON RS 129 MK2 SYSTEM NG, CAST IRON RS 151 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 237 MK2 SYSTEM NG, CAST IRON RS 258 MK2 SYSTEM NG, CAST IRON RS 279 MK2 SYSTEM NG, Sime Friendly E, Sime Friendly, RX 48 NG, RX 55 NG, SUPER 102 DELUXE COMBI NG, SUPER 80 COMBI NG, SUPER 90 COMBI NG. Always check the model and serial number on the data plate before ordering.

Does 6001400 have equivalent or superseded part numbers?

The sources we checked list no equivalents for 6001400. Ask a Sime stockist to confirm.

What should I check before fitting 6001400?

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.

View on eBay

Some lists are dated and the part may have been superseded.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