Ariston
Ariston O-Ring 65105180
Ariston O-ring measuring 16.5mm by 1.6mm, used as a seal on CLAS and EGIS gas boiler models.
£3.53
£2.94 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 an Ariston O-ring with a stated size of 16.5mm by 1.6mm, supplied under part number 65105180. It is a sealing component used within the hydraulic and gas circuit assemblies of Ariston gas boilers. The O-ring provides a compression seal at the joint where it is fitted, preventing water or gas from escaping.
Signs this part needs replacing
- Visible water weeping or damp staining around the joint where the O-ring sits
- The O-ring has hardened, flattened or lost its elasticity
- Cracks, splits or a nicked surface on the ring
- A persistent drip or pressure loss traced to the sealed joint
- Discolouration or swelling of the ring material
Before you order
- Confirm your boiler model against the fit list above before ordering
- Check the O-ring dimensions required at the joint you are working on
- Inspect the mating surfaces for scoring or damage that could affect the seal
- Consider whether more than one O-ring is needed for the repair
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ARISTON ARISTON CLAS 21 FF SYSTEM | — | — | — | |
| ARISTON ARISTON CLAS 28 FF SYSTEM | — | — | — | |
| ARISTON ARISTON CLAS 32 FF SYSTEM | — | — | — | |
| ARISTON CLAS 21 FF SYSTEM NG (IE) EDITION 3 (MAR 2008) | 41-116-27 | 41-116-27 | — | — |
| ARISTON CLAS 28 FF SYSTEM NG (IE) EDITION 3 (MAR 2008) | 41-116-28 | 41-116-28 | — | — |
| ARISTON CLAS 32 FF SYSTEM NG (IE) EDITION 3 (MAR 2008) | — | — | — | |
| ARISTON EGIS HE24 | 47-116-71 | 47-116-71 | — | — |
| ARISTON EGIS HE30 | 47-116-72 | 47-116-72 | — | — |
| ARISTON EGIS PREMIUM 24 NG (OCT 2011) | — | — | — | |
| ARISTON EGIS PREMIUM 30 NG (OCT 2011) | — | — | — |
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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