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Sime Conversion Kit 5185403

Sime

Sime Conversion Kit 5185403

Sime 5185403 natural gas conversion kit for compatible Format and Format System gas boilers.

At a glance

  • Appliance family: Sime Format and Format System
  • Also known as 2040168
  • Arrange fitting and commissioning by a Gas Safe registered engineer.
Manufacturer part no.
5185403
Showing prices

£23.90

£19.92 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Sime 5185403 is a natural gas conversion kit for Sime gas boilers. It is used to set a compatible appliance up to run on natural gas. It sits within the gas boiler spares range for the Format and Format System appliance families.

Signs this part needs replacing

  • The appliance is currently configured for LPG and needs to run on natural gas.
  • A fuel conversion is required during installation or following a change of gas supply.
  • The boiler has been relocated to a property supplied with natural gas but retains LPG setup components.
  • Commissioning cannot proceed because the gas family does not match the appliance configuration.

Before you order

  • Confirm your appliance model against the fitment list above.
  • Check which fuel the appliance is currently set up to run on.
  • Arrange fitting and commissioning by a Gas Safe registered engineer.
  • Quote part number 5185403 when checking compatibility.

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.