Thermcross Spares SIME 6112320 Stat Extension, Boiler Thermostat Extension, Heating Control Spare, Replacement Part Number: 6112320/SIM

Thermcross Spares SIME 6112320 Stat Extension, Boiler Thermostat Extension, Heating Control Spare, Replacement

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£15.60
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Thermcross Spares SIME 6112320 Stat Extension, Boiler Thermostat Extension, Heating Control Spare, Replacement Part Number: 6112320/SIM
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Thermcross Spares SIME 6112320 Stat Extension, Boiler Thermostat Extension, Heating Control Spare, Replacement

SKU W-417800
Manufacturer part number
6112320/SIM
EAN
8021297380226
£15.60
inc VAT£13.00 ex VAT
Lead time: 1-5 working days

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Product: Thermcross Spares SIME 6112320 Stat Extension, Boiler Thermostat Extension, Heating Control Spare, Replacement (Part no. W-417800)

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Description

Product Overview

The Thermcross Spares SIME 6112320 Stat Extension is a boiler spare designed to extend or adapt the thermostat mounting or connection where an extension is required. Suitable for heating system repairs and servicing, it helps restore correct thermostat positioning and reliable boiler control. A straightforward replacement part that supports safer, more consistent heating performance.

Key Features

  • Purpose-made stat extension – helps achieve correct thermostat fitment for dependable boiler control.
  • Replacement boiler spare – ideal for like-for-like part swaps during breakdown repairs or routine servicing.
  • Helps restore reliable operation – supports stable heating regulation by ensuring proper component alignment.
  • Identifiable by MPN and EAN – simpler matching and ordering to reduce downtime and returns.

Use Case / Application

Designed for use in boiler maintenance and heating system repair work where a thermostat extension component is required. Commonly fitted inside the boiler casing by a qualified heating engineer during servicing, fault finding or replacement of heating controls. Suitable for domestic and light commercial plant rooms, utility areas and airing cupboards where boiler controls need accurate positioning.

Problem → Solution

Ideal for replacing a worn, missing or incorrect thermostat extension so your boiler thermostat can be fitted correctly and operate as intended.

Product Specifications

• Manufacturer – Thermcross Spares
• Manufacturer Part Number (MPN) – 6112320/SIM
• EAN / Barcode – 8021297380226
• Product Type – Boiler thermostat stat extension
• Typical Applications / Use Cases – Boiler servicing and repairs; heating control component replacement where a stat extension is required

Why Buy from BHL

Thermcross Spares supplies dependable heating and boiler spares designed for straightforward replacement and maintenance. Choose the SIME 6112320 Stat Extension to help complete your repair with a correctly matched component. Buy online from BHL, a specialist online merchant trusted by thousands of satisfied customers since 1998 with thousands of 5 star reviews. Enjoy competitive pricing, free and fast UK delivery* and careful dispatch from UK warehouses. Order today from BHL for the right part, delivered with care.

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Reviews

Buying guide: Boiler Spares

Boiler spares are replacement parts for gas, LPG and oil boilers: printed circuit boards, fans, gas valves, pumps, diverter valves, heat exchangers, sensors, pressure gauges, burners, electrodes, seals, casing panels and flue parts. Most are made for one manufacturer, and often for a narrow range of models, so identifying the boiler correctly matters more than anything else.

Identify the boiler first

Find the data badge, usually behind the front panel or under the controls cover. It shows the manufacturer, the model and the GC (Gas Council) number, a seven-digit reference for the exact appliance. Natural gas and LPG versions of the same boiler usually have different GC numbers, and parts can change between production runs, so the GC number and serial number are the safest way to match a part. The boiler's installation and servicing manual lists the parts for each model.

Part numbers and replacements

Search by the manufacturer's part number where you have it. Manufacturers sometimes replace a part with a newer version under a new number; only use a replacement that the manufacturer lists for your model. Some repairs need a kit rather than a single part, for example a part supplied with new seals or fixings.

Safety

By law, work on gas boilers and their gas parts must be carried out by a Gas Safe registered engineer qualified for that type of appliance; ask to see their ID card before work starts. Oil boilers should be worked on by a suitably qualified technician.

For thermostats and programmers, see heating controls.

Shop all Boiler Spares

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