Ariston
Ariston Temperature Knob Spindle 998578
Temperature knob spindle for Ariston Excalibur gas boilers, part number 998578.
At a glance
- Also known as 1571161
£2.08
£1.73 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 Ariston 998578 is a temperature knob spindle for Ariston Excalibur gas boilers. It provides the mechanical connection between the temperature control knob and the boiler's internal control mechanism, allowing the temperature setting to be adjusted. It forms part of the control knob assembly.
Signs this part needs replacing
- The temperature knob turns freely without changing the boiler setting.
- The knob feels loose, wobbly, or detached from the spindle.
- The knob is difficult to turn or binds during adjustment.
- The temperature cannot be adjusted reliably or the knob fails to hold its position.
Before you order
- Confirm your boiler model and GC number against the fitment list above.
- Check the existing spindle and knob assembly to ensure the part matches.
- Verify the part number 998578 on your boiler's parts list.
Compliance
| Barcode / EAN | 5411692285234 |
|---|---|
| Alternative numbers | 1571161 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ARISTON EXCALIBUR 100 LPG EDITION 1 (JAN 2004) | — | — | — | |
| ARISTON EXCALIBUR 100 NG | — | — | — | |
| ARISTON EXCALIBUR 100 NG EDITION 1 (JAN 2004) | 47-116-31 | 47-116-31 | — | — |
| ARISTON EXCALIBUR 80 LPG EDITION 1 (JAN 2004) | — | — | — | |
| ARISTON EXCALIBUR 80 NG | — | — | — | |
| ARISTON EXCALIBUR 80 NG EDITION 1 (JAN 2004) | 47-116-30 | 47-116-30 | — | — |
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.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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