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Potterton Nozzle Gasket 110/160 5142465

Potterton

Potterton Nozzle Gasket 110/160 5142465

Potterton nozzle gasket for 110/160 flue connections on Sirius commercial boilers.

Manufacturer part no.
5142465
Showing prices

£15.60

£13.00 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 Potterton 5142465 is a nozzle gasket sized 110/160, used to seal the flue connection on Potterton Commercial Sirius boiler installations. It forms the gas-tight joint between the flue nozzle and the appliance casing, preventing leakage of flue products and ingress of air at the connection point.

Signs this part needs replacing

  • Visible cracking, hardening or flattening of the gasket material
  • Staining or condensate tracking around the flue nozzle joint
  • Combustion readings drifting or an unexplained change in flue gas analysis
  • Draught or air ingress detectable at the nozzle connection
  • Gasket disturbed or damaged during flue servicing or removal

Before you order

  • Confirm the appliance model against the fitment list above
  • Check the flue connection size on the installation is 110/160
  • Inspect the sealing faces on the nozzle and casing for corrosion or distortion before refitting
  • Verify the part number 5142465 matches the number shown on the existing component or in the boiler documentation

Not sure which part?

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