Potterton
Potterton Burner Gasket High Temperature 5142390
High temperature burner gasket for Potterton Commercial Sirius 2 and Sirius 3 FS series gas boilers.
£8.40
£7.00 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
The BURNER GASKET - HIGH TEMPERATURE is a Potterton Commercial high temperature sealing gasket, supplied under part number 5142390. It is fitted at the burner on Potterton Commercial Sirius 2 and Sirius 3 FS series gas boilers, where it forms a heat-resistant gas-tight seal. Its role is to prevent combustion products escaping from the burner joint while withstanding the temperatures present during operation.
Signs this part needs replacing
- Visible cracking, hardening or brittleness in the gasket material after the burner is removed
- Soot staining or heat marking around the burner mounting joint, indicating a failed seal
- Signs of combustion products escaping at the burner flange
- Repeated flame failure or lockout following burner work
- Gasket flattened, bonded or stuck to the mating face so it cannot be refitted cleanly
Before you order
- Confirm the boiler model against the Fits list above, as the gasket is listed for Sirius 2 and Sirius 3 FS50, FS70, FS90 and FS110 variants.
- Check that the existing gasket carries part number 5142390 or matching identification.
- Inspect the burner mounting face for damage, distortion or pitting before refitting.
- Check whether any other burner seals or fixings need replacing at the same time.
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
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