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Worcester Bosch Gas Conversion Kit 21kW System NG-LPG 8716117438

Worcester Bosch

Worcester Bosch Gas Conversion Kit 21kW System NG-LPG 8716117438

Worcester Bosch gas conversion kit (8716117438) for Greenstar 21i ErP System boilers, rated 21kW, for NG to LPG fuel conversion.

At a glance

  • Part type: Conversion kit
  • Also known as 1031345
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
8716117438
GC number
J26-614
Showing prices

£111.11

£92.59 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 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 Worcester Bosch 8716117438 is a gas conversion kit for the Greenstar 21i ErP System boiler. It carries the parts needed to set the appliance up for a different fuel, converting between natural gas (NG) and liquefied petroleum gas (LPG). Correct fitment keeps combustion matched to the fuel supply and to the manufacturer's specification for the 21kW system model.

Signs this part needs replacing

  • The boiler is being switched to a different gas supply and the existing fuel set-up no longer matches
  • Unstable or poorly formed flame at the burner after a fuel change
  • Combustion readings falling outside the manufacturer's stated range
  • Sooting, discolouration or a smell of unburnt gas around the appliance
  • Repeated ignition faults or lockouts following work on the gas supply

Before you order

  • Check the model and GC number on the appliance data badge against the compatibility list.
  • Confirm which fuel the appliance will run on, NG or LPG, before ordering.
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

Not sure which part?

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