Ariston
Ariston O Ring 18 x 2.8 65116846
Ariston O ring, 18 mm x 2.8 mm, part number 65116846, for use in Ariston ONE series gas boilers.
At a glance
- Also known as 8903685
£2.44
£2.03 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 measuring 18 mm x 2.8 mm, manufacturer part number 65116846. It is a sealing component used within Ariston ONE series gas boilers, including the Alteas, Cares, CLAS, E-Combi, E-System and Genus ranges. The ring provides a fluid-tight seal at the joint where it is fitted, preventing leaks from the assembly it serves.
Signs this part needs replacing
- Visible water or weeping at the joint the ring seals
- The ring is perished, cracked or flattened when inspected
- The ring has hardened and no longer sits proud of its groove
- A joint that has been disturbed and will not seal on reassembly
- Scale or debris embedded in the ring surface
Before you order
- Confirm the part number 65116846 matches the item removed from the appliance
- Check the appliance model against the fit list above before ordering
- Measure the old ring to confirm the 18 mm x 2.8 mm size
- Inspect the mating surfaces and groove for damage before refitting
Compliance
| Alternative numbers | 8903685 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ARISTON ALTEAS ONE NET 24 | — | — | — | |
| ARISTON ALTEAS ONE NET 30 | 33-014-49 | 33-014-49 | — | — |
| ARISTON ALTEAS ONE NET 35 | 33-014-50 | 33-014-50 | — | — |
| ARISTON CARES ONE 24 | 47-116-79 | 47-116-79 | — | — |
| ARISTON CARES ONE 30 | 47-116-80 | 47-116-80 | — | — |
| ARISTON CLAS NET ONE 24 UK | 47-116-88 | 47-116-88 | — | — |
| ARISTON CLAS NET ONE 30 UK | 47-116-89 | 47-116-89 | — | — |
| ARISTON CLAS NET ONE 38 UK | 47-116-90 | 47-116-90 | — | — |
| ARISTON CLAS ONE 24 UK | 47-116-85 | 47-116-85 | — | — |
| ARISTON CLAS ONE 30 UK | 47-116-86 | 47-116-86 | — | — |
Showing 10 of 29 compatible appliances.
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.
ARISTON appliance manual — CLAS NET ONE 24 UK (GC 47-116-88), CLAS NET ONE 30 UK (GC 47-116-89), CLAS NET ONE 38 UK (GC 47-116-90), CLAS ONE 24 UK (GC 47-116-85), CLAS ONE 30 UK (GC 47-116-86), CLAS ONE 38 UK (GC 47-116-87), CLAS SYSTEM ONE 18 UK (GC 41-116-49), CLAS SYSTEM ONE 24 UK (GC 41-116-50), CLAS SYSTEM ONE 30 UK (GC 41-116-51)
manualmanualARISTON appliance manual — E-COMBI ONE 24 (GC 47-116-83), E-COMBI ONE 30 (GC 47-116-84), E-SYSTEM ONE 24 (GC 41-116-47), E-SYSTEM ONE 30 (GC 41-116-48)
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