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Potterton Gasket Fan Inlet 5000857

Potterton

Potterton Gasket Fan Inlet 5000857

Potterton 5000857 fan inlet gasket for Suprima 30 L, 40 L and 50 L gas boilers.

At a glance

  • Part type: fan inlet gasket
  • Appliance family: Suprima L series gas boilers
  • Also known as 1123271
Manufacturer part no.
5000857
GC number
E78-469
Showing prices

£10.22

£8.52 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

The Potterton 5000857 is a fan inlet gasket used on Suprima gas boilers. It seals the joint between the fan inlet and the surrounding flue or air path components, preventing leakage of combustion air or flue gases at that connection. The gasket is a consumable sealing component and is normally renewed whenever the fan or the inlet joint is disturbed.

Signs this part needs replacing

  • Visible cracking, hardening or flattening of the gasket material
  • Traces of soot staining or condensate seepage around the fan inlet joint
  • Combustion readings that drift or fail to settle after servicing the fan
  • The gasket is disturbed, damaged or torn during fan removal or refitting
  • Audible whistling or leakage at the fan inlet on a running boiler

Before you order

  • Confirm the boiler model is a Suprima 30 L, 40 L or 50 L
  • Check the existing gasket or the appliance data badge against part number 5000857
  • Verify the gasket seating faces are clean and undamaged before fitting
  • Confirm the fan and inlet assembly are otherwise serviceable, as the gasket is a sealing item only

Not sure which part?

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