Vaillant
Vaillant Expansion Vessel 0020181040
Vaillant 18 litre expansion vessel with bracket, part number 0020181040, for Vantage, VIH, Unistor and Aurostor appliances.
At a glance
- Also known as 1379432
£202.38
£168.65 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
Vaillant 18 litre expansion vessel with mounting bracket, part number 0020181040. It is used in Vaillant Vantage, VIH, Unistor and Aurostor appliances to absorb water expansion within sealed systems and help maintain stable operating pressure. The vessel is supplied with a bracket for mounting.
Signs this part needs replacing
- System pressure rises significantly when the appliance heats up and falls when it cools
- Pressure relief valve discharges water during heat-up
- Water escapes from the pressure relief discharge pipe
- Visible corrosion or water staining around the expansion vessel
- Frequent need to top up system pressure
Before you order
- Check your appliance model against the Fits list above
- Confirm the existing expansion vessel is 18 litres and that the bracket is required
- Verify the part number 0020181040 matches the component being replaced
- If unsure, consult the manufacturer's parts list for your specific model
Compliance
| Barcode / EAN | 4024074698570 |
|---|---|
| Alternative numbers | 1379432 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VANTAGE VIH GB 180/2 S | — | — | — | |
| VAILLANT VANTAGE VIH GB 180/3 BES | — | — | — | |
| VAILLANT VANTAGE VIH GB 200/3 BES | — | — | — | |
| VAILLANT VANTAGE VIH GB 250/3 BES | — | — | — | |
| VAILLANT VANTAGE VIH GB 300/3 BES | — | — | — | |
| VAILLANT VANTAGE VIH S GB 200/3 BES | — | — | — | |
| VAILLANT VANTAGE VIH S GB 250/3 BES | — | — | — | |
| VAILLANT VANTAGE VIH S GB 300/3 BES | — | — | — | |
| VAILLANT VIH GB 180/2 S | — | — | — | |
| VAILLANT VIH GB 180/3 BES | — | — | — |
Showing 10 of 26 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.
VAILLANT appliance manual — VANTAGE VIH GB 180/3 BES, VANTAGE VIH GB 200/3 BES, VANTAGE VIH GB 250/3 BES, VANTAGE VIH GB 300/3 BES, VIH GB 180/3 BES, VIH GB 200/3 BES, VIH GB 250/3 BES, VIH GB 300/3 BES
manualmanualVAILLANT appliance manual — VANTAGE VIH S GB 200/3 BES, VANTAGE VIH S GB 250/3 BES, VANTAGE VIH S GB 300/3 BES, VIH S GB 200/3 BES, VIH S GB 250/3 BES, VIH S GB 300/3 BES
manualmanualVAILLANT appliance manual — VIH GB 180/2 S, VIH GB 210/2 S, uniSTOR VIH GB 180/2 S (2011), uniSTOR VIH GB 210/2 S (2011)
manualmanualVAILLANT appliance manual — auroSTOR VIH S GB 210/2 S (2011)
manualmanualVAILLANT appliance manual — uniSTOR VIH GB 180 S (2005-2011), uniSTOR VIH GB 210 S (2005-2011)
manualNo technical questions yet for this part.
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