Ariston
Ariston Expansion Vessel 573294
8 litre expansion vessel for Ariston Genus, Ecogenus and Eurocombi gas boilers, part number 573294.
At a glance
- Also known as EXPANSION-VESSEL-D387X90-G38-7-LTR-3BAR, 1573356, N6713
Showing prices
£66.14
£55.12 ex. VAT · VAT at 20%
Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Ariston 573294 is an 8 litre expansion vessel used in Ariston gas boilers. It absorbs the expansion of water as the sealed heating circuit heats up, helping to keep system pressure stable. It is fitted across the Genus, Ecogenus and Eurocombi appliance families.
Signs this part needs replacing
- Boiler pressure rises noticeably when the heating is running
- System pressure drops repeatedly and needs frequent topping up
- Water discharging from the pressure relief valve
- Boiler locks out or displays a low pressure fault
- Corrosion or water staining around the vessel connection
Before you order
- Confirm your boiler model and serial number against the fitment list
- Check the existing vessel is 8 litre capacity
- Note the GC number where shown to confirm the correct variant
- Confirm the part number 573294 matches the vessel being replaced
Compliance
| Barcode / EAN | 5411692151461 |
|---|---|
| Alternative numbers | EXPANSION-VESSEL-D387X90-G38-7-LTR-3BAR, 1573356, N6713 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ARISTON ARISTON ECOGENUS 24 MFFI - FROM SERIAL No 2320033400001 | — | — | — | |
| ARISTON ARISTON ECOGENUS 24 MFFI - FROM SERIAL No 2320033400001 TO SERIAL No 2320011800001 | — | — | — | |
| ARISTON ARISTON ECOGENUS 24 RFFI - FROM SERIAL No 2319933800115 TO SERIAL No 2320033400001 | — | — | — | |
| ARISTON ARISTON ECOGENUS 24 RFFI - FROM SERIAL No 2320011000001 | — | — | — | |
| ARISTON ARISTON EUROCOMBI A23 MFFI - FROM SERIAL No 983610001 TO SERIAL No 2320015700001 | — | — | — | |
| ARISTON ARISTON EUROCOMBI A23 MFFI - UP TO SERIAL No 983610001 | — | — | — | |
| ARISTON ARISTON EUROCOMBI A23 MFFI UK - FROM SERIAL No 2320015700001 | — | — | — | |
| ARISTON ARISTON EUROCOMBI A27 MFFI - FROM SERIAL No 983610001 TO SERIAL No 2320015700001 | — | — | — | |
| ARISTON ARISTON EUROCOMBI A27 MFFI - UP TO SERIAL No 983610001 | — | — | — | |
| ARISTON ARISTON EUROCOMBI A27 MFFI UK - FROM SERIAL No 2320015700001 | — | — | — |
Showing 10 of 61 compatible appliances.
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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.
manual
ARISTON appliance manual — ECOGENUS 24 MFFI EDITION 1 (DEC 1999) (GC 47-116-17), ECOGENUS 24 MFFI EDITION 2 LPG (JAN 2001) (GC 47-116-17), ECOGENUS 24 MFFI EDITION 2 NG (JAN 2001) (GC 47-116-17), ECOGENUS 24 MFFI EDITION 3 LPG (OCT 2001) (GC 47-116-17), ECOGENUS 24 MFFI EDITION 3 NG (OCT 2001) (GC 47-116-17), ECOGENUS 24 MFFI EDITION 4 LPG (JULY 2002) (GC 47-116-17), ECOGENUS 24 MFFI EDITION 4 NG (JULY 2002) (GC 47-116-17), ECOGENUS 24 RFFI SYS EDITION 1 LPG (DEC 1999) (GC 41-116-03), ECOGENUS 24 RFFI SYS EDITION 1 NG (DEC 1999) (GC 41-116-03), ECOGENUS 24 RFFI SYS EDITION 2 LPG (JAN 2001) (GC 41-116-03), ECOGENUS 24 RFFI SYS EDITION 2 NG (JAN 2001) (GC 41-116-03), ECOGENUS 24 RFFI SYS EDITION 3 LPG (AUG 2002) (GC 41-116-03), ECOGENUS 24 RFFI SYS EDITION 3 NG (AUG 2002) (GC 41-116-03)
manualmanualARISTON appliance manual — EUROCOMBI A23 MFFI LPG UK EDITION 1 (OCT 2007) (GC 47-116-10), EUROCOMBI A23 MFFI NG UK EDITION 1 (OCT 2007) (GC 47-116-10), EUROCOMBI A27 MFFI LPG UK EDITION 1 (OCT 2007) (GC 47-116-12), EUROCOMBI A27 MFFI NG UK EDITION 1 (OCT 2007) (GC 47-116-12)
manualmanualARISTON appliance manual — GENUS 23 MFFI UK EDITION 1 LPG (JUN 1998) (GC 47-116-08), GENUS 23 MFFI UK EDITION 1 NG (JUN 1998) (GC 47-116-08), GENUS 23 MFFI UK EDITION 2 LPG (JAN 1999) (GC 47-116-08), GENUS 23 MFFI UK EDITION 2 NG (JAN 1999) (GC 47-116-08), GENUS 23 MFFI UK EDITION 3 LPG (SEPT 2000) (GC 47-116-08), GENUS 23 MFFI UK EDITION 3 NG (SEPT 2000) (GC 47-116-08), GENUS 27 MFFI UK EDITION 1 LPG (JUN 1998) (GC 47-116-09), GENUS 27 MFFI UK EDITION 1 NG (JUN 1998) (GC 47-116-09), GENUS 27 MFFI UK EDITION 2 LPG (JAN 1999) (GC 47-116-09), GENUS 27 MFFI UK EDITION 2 NG (JAN 1999) (GC 47-116-09), GENUS 27 MFFI UK EDITION 3 LPG (SEPT 2000) (GC 47-116-09), GENUS 27 MFFI UK EDITION 3 NG (SEPT 2000) (GC 47-116-09), GENUS 27 RFFI TANK LPG EDITION 1 (JUN 1998) (GC 41-116-01), GENUS 27 RFFI TANK LPG EDITION 2 (JAN 1999) (GC 41-116-01), GENUS 27 RFFI TANK LPG EDITION 3 (NOV 2000) (GC 41-116-01), GENUS 27 RFFI TANK NG EDITION 1 (JUN 1998) (GC 41-116-01), GENUS 27 RFFI TANK NG EDITION 2 (JAN 1999) (GC 41-116-01), GENUS 27 RFFI TANK NG EDITION 3 (NOV 2000) (GC 41-116-01), GENUS 30 MFFI UK LPG EDITION 2 (JUL 2000) (GC 47-116-13), GENUS 30 MFFI UK LPG EDITION 3 (OCT 2000) (GC 47-116-13), GENUS 30 MFFI UK NG EDITION 2 (JUL 2000) (GC 47-116-13), GENUS 30 MFFI UK NG EDITION 3 (OCT 2000) (GC 47-116-13)
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