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Ideal Thermocouple 900mm 175743

Ideal

Ideal Thermocouple 900mm 175743

Ideal 175743 thermocouple, 900mm length, for Ideal Commercial appliances. Ideal spare part.

At a glance

  • Part type: Thermocouple
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
175743
Showing prices

£29.84

£24.87 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 Ideal 175743 is a thermocouple designed for use in Ideal Commercial appliances. It generates a small voltage when heated by a pilot flame, which holds the gas valve open. This safety device shuts off the gas supply if the flame goes out.

Signs this part needs replacing

  • Pilot light will not stay lit after releasing the control knob.
  • Boiler locks out shortly after ignition.
  • No hot water or heating despite the pilot being lit.
  • The thermocouple tip appears burnt or corroded.

Before you order

  • Check your appliance model and serial number to confirm compatibility.
  • Verify the part number 175743 matches your existing thermocouple.
  • Inspect the pilot assembly for debris or damage that may also need attention.
  • 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.