
Potterton
Potterton Air Plug Gasket 5142338
Potterton air plug gasket, part 5142338, for Potterton Commercial Sirius 2 and Sirius 3 FS50 and FS70 boilers.
£2.40
£2.00 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
This is a gasket for the air plug, supplied under part number 5142338 by Potterton. It is a sealing component used on Potterton Commercial Sirius 2 and Sirius 3 FS50 and FS70 boilers. The gasket sits at the air plug joint to maintain a gas-tight seal.
Signs this part needs replacing
- Visible cracking, splitting or hardening of the gasket material
- Signs of leakage or staining around the air plug joint
- Gasket flattened or deformed so it no longer seals correctly
- Gasket damaged or disturbed during servicing of the air plug
Before you order
- Confirm the boiler model matches one of the Sirius 2 or Sirius 3 FS50/FS70 variants listed
- Check the existing gasket against the air plug joint before removal to confirm the part type
- Verify the part number 5142338 against the appliance documentation
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON COMMERCIAL POTTERTON COMMERCIAL SPARES | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS50 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS70 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS50 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS70 | — | — | — |
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
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