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Worcester Bosch Ventura FIO AI4 Thermocouple 8734010174

Worcester Bosch

Worcester Bosch Ventura FIO AI4 Thermocouple 8734010174

Thermocouple for Worcester Bosch Ventura FIO AI4 appliances, manufacturer part number 8734010174.

At a glance

  • Appliance family: Ventura FIO AI4
  • Also known as 2247531
Manufacturer part no.
8734010174
Showing prices

£845.17

£704.31 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 Worcester Bosch 8734010174 is a thermocouple for the Ventura FIO AI4 appliance family. It is a flame-sensing safety component that produces a small voltage while a pilot flame is proven, holding the gas valve open. If the flame is lost, the thermocouple output falls and the valve closes.

Before you order

  • Confirm the part number 8734010174 matches the marking on the existing component or the appliance documentation.
  • Check the appliance model is Ventura FIO AI4 before ordering.
  • If the correct thermocouple for your appliance is unclear, refer to Worcester Bosch technical documentation.

Not sure which part?

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