Sime
Sime Expansion Vessel 1.6 Litre 5139140
Sime 1.6 litre expansion vessel with 3/8 inch male connection, part number 5139140, for Sime gas boilers.
At a glance
- Also known as EXPANSION-VESSEL-L7---38-M, 2040106
£84.66
£70.55 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 Sime 5139140 is a 1.6 litre expansion vessel with a 3/8 inch male connection. It is used in Sime gas boilers to absorb pressure changes in the sealed heating system. This component helps maintain stable system pressure as water expands and contracts.
Signs this part needs replacing
- System pressure rises quickly when the boiler is running
- Pressure relief valve discharges water
- Boiler pressure drops repeatedly and needs topping up
- Pressure gauge shows large fluctuations between cold and hot
- Visible corrosion or water at the vessel connection
Before you order
- Confirm your appliance model and GC number against the Fits list
- Check the existing vessel has a 3/8 inch male connection
- Verify the required capacity is 1.6 litre for your appliance
- Check for any system pressure issues that may indicate other faults
Compliance
| Alternative numbers | EXPANSION-VESSEL-L7---38-M, 2040106 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SIME CLIMIT GG M 23 BF MET - 8105460 | — | — | — | |
| SIME CLIMIT GG M 23 OF MET - 8105550 | — | — | — | |
| SIME CLIMIT GGF 23 OF MET - 8104605 | — | — | — | |
| SIME FORMAT 80B LPG - 8105401 | 47-283-07 | 47-283-07 | — | — |
| SIME FORMAT 80B NATURAL GAS - 8105400 | 47-283-07 | 47-283-07 | — | — |
| SIME FORMAT 80C - 8098454 | 47-719-12 | 47-719-12 | — | — |
| SIME FORMAT 80C LPG - 8098459 | 47-719-12 | 47-719-12 | — | — |
| SIME FORMAT SYSTEM 24 EI LPG - 8098476 | — | — | — | |
| SIME FORMAT SYSTEM 24 EI NATURAL GAS - 8098475 | — | — | — | |
| SIME FORMAT SYSTEM 24 LPG - 8098471 | — | — | — |
Showing 10 of 37 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.
SIME appliance manual — FORMAT 80B LPG - 8105401 (GC 47-283-07), FORMAT 80B NATURAL GAS - 8105400 (GC 47-283-07)
manualmanualSIME appliance manual — FORMAT 80C - 8098454 (GC 47-719-12), FORMAT 80C LPG - 8098459 (GC 47-719-12)
manualmanualSIME appliance manual — FORMAT SYSTEM 24 LPG - 8098471, FORMAT SYSTEM 24 NATURAL GAS - 8098470 (GC 41-719-15)
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