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Universal pilot thermocouple, alumnised tip, 650mm (T112-650/AT)

Thermocouple

Universal pilot thermocouple, alumnised tip, 650mm (T112-650/AT)

Universal 650mm pilot thermocouple with an alumnised tip, listed by the supplier as a Vulcana 3 type replacement.

At a glance

  • Also known as 1700015
  • Gas Safe registered engineer required for fitting
Manufacturer part no.
T112-650/AT
Showing prices

£63.43

£52.86 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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

A pilot-flame safety thermocouple sold as a universal aftermarket replacement, catalogued under the reference T112-650/AT and listed by the supplier as a "Vulcana 3" type part. The /AT suffix used across this catalogue denotes an alumnised-tip variant (as seen on the related T20-900/AT part), a tip finish more resistant to LPG combustion by-products. It sits in the pilot flame and generates a small millivolt signal that holds the appliance's gas valve open.

Signs this part needs replacing

  • Pilot light won't stay lit once the control knob is released
  • Main burner won't ignite despite a visible pilot flame
  • Weak or unstable millivolt reading on test
  • Corrosion, scorching or a damaged lead

Before you order

  • Match the part number on your existing thermocouple against T112-650/AT
  • If your appliance runs on LPG, check the tip finish matches (alumnised)
  • Isolate the gas supply before removing the old thermocouple
  • Gas Safe registered engineer required for fitting

Not sure which part?

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