
Potterton
Potterton Gasket - 70mm 5142350
Potterton 70mm EPDM gasket, part 5142350, for Potterton Commercial Sirius 2 and 3 boilers.
£7.56
£6.30 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 GASKET - 70MM is a sealing gasket manufactured by Potterton (Potterton Commercial), supplied under part number 5142350. It is made from EPDM and has a nominal diameter of Ø 70mm. The gasket forms a watertight seal on Potterton Commercial Sirius 2 and Sirius 3 boiler assemblies.
Signs this part needs replacing
- Water weeping or dripping from the joint the gasket seals
- Visible hardening, cracking or flattening of the gasket material
- Scale or corrosion staining around the sealing face
- Repeated pressure loss traced to the gasket joint
- Gasket deformed or displaced when the joint is opened for service
Before you order
- Confirm the appliance model is a Potterton Commercial Sirius 2 or Sirius 3 boiler
- Check the failed gasket measures Ø 70mm across the sealing face
- Verify the part number 5142350 against the existing component or appliance documentation
- Confirm the sealing face is clean and undamaged before fitting the new gasket
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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