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Biasi Gasket 3/8 Inch for NTC Probe BI1001109

Biasi

Biasi Gasket 3/8 Inch for NTC Probe BI1001109

Flat 3/8 inch gasket for the NTC probe on Biasi gas boilers, sealing the probe joint against the heating circuit.

At a glance

  • Also known as 1650008
Manufacturer part no.
BI1001109
GC number
164-025
Showing prices

£0.68

£0.57 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 Biasi BI1001109 is a flat 3/8 inch gasket that seals the NTC temperature probe where it fits into the boiler. It is used across the Biasi gas boiler range, including the Garda, RIVA, Parva, Prisma and GAIA families. The gasket forms a watertight joint at the probe boss, keeping the connection sealed under normal operating pressure and temperature.

Signs this part needs replacing

  • Water weeping or dripping from around the NTC probe
  • The gasket is hardened, flattened or cracked
  • Scale or corrosion around the probe seating face
  • Intermittent or inaccurate temperature readings from the probe
  • Damp staining or water marks on the boiler casing below the probe

Before you order

  • Confirm the probe connection is 3/8 inch
  • Check your boiler model and GC number against the fitment list
  • Inspect the probe thread and seating face for damage before refitting
  • Fit a new gasket whenever the probe is removed and refitted

Not sure which part?

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