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Sime Probe NTC 4mm x 47mm 6277131

Sime

Sime Probe NTC 4mm x 47mm 6277131

NTC thermistor probe for Sime gas boilers, measuring 4 mm in diameter and 47 mm in length.

At a glance

  • Also known as 2042554
Manufacturer part no.
6277131
Showing prices

£24.13

£20.11 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 PROBE NTC 4MM X 47MM is an NTC thermistor probe manufactured by Sime, part number 6277131. It is used across the Sime Format, Murelle and Open DGT gas boiler families to sense temperature and feed that resistance value back to the boiler control. The probe measures 4 mm in diameter and 47 mm in length.

Signs this part needs replacing

  • Boiler reports a temperature sensor or thermistor fault and locks out
  • Flow or return temperature readings on the display are erratic or implausible
  • Domestic hot water temperature fluctuates or fails to reach setpoint
  • Heating output cycles or modulates incorrectly despite correct settings
  • Probe resistance no longer tracks temperature when checked against the manufacturer's curve

Before you order

  • Confirm the existing probe measures 4 mm in diameter and 47 mm in length
  • Check the part number 6277131 against the faulty component or the boiler's documentation
  • Verify the appliance model against the fit list above
  • Inspect the probe lead and connector for damage before fitting a replacement

Not sure which part?

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