Potterton
Potterton Sight Glass Gasket 5142365
Sight glass gasket for Potterton Commercial Sirius 2 and Sirius 3 boilers, part number 5142365.
At a glance
- Part type: gasket for sight glass
£4.39
£3.66 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
The Potterton Commercial 5142365 is a gasket for the sight glass on Potterton Commercial boilers. It seats the sight glass against the appliance and forms the seal at that viewing point. The part is listed for the Potterton Commercial Sirius 2 and Sirius 3 ranges.
Signs this part needs replacing
- Visible cracking, hardening or perishing of the gasket material
- Water staining, damp patches or corrosion around the sight glass
- Sooting or combustion deposits escaping at the sight glass seating
- The sight glass sitting loose or failing to seal against the boiler face
Before you order
- Confirm the appliance model against the fit list above, as the gasket is listed only for Sirius 2 and Sirius 3 variants
- Check the part number on the existing gasket or the appliance documentation matches 5142365
- Inspect the sight glass itself for cracks or chips, as a damaged glass will not seal correctly even with a new gasket
- Ensure the gasket seating face is clean and free from old seal material before fitting
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON COMMERCIAL POTTERTON COMMERCIAL SPARES | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS110 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS50 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS70 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS90 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS110 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS50 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS70 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS90 | — | — | — |
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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