Worcester Bosch
Worcester Bosch Expansion Vessel 10L 87161425040
Worcester Bosch 87161425040 10 litre expansion vessel for Danesmoor oil system boilers, absorbing pressure changes in the heating circuit.
At a glance
- Part type: Expansion vessel
- Also known as 1018307
£137.57
£114.64 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 Worcester Bosch 87161425040 is a 10 litre expansion vessel used in Worcester oil-fired appliances. It sits on the heating circuit and absorbs the volume change of the system water as it heats and cools, holding the pressure steady and protecting other components from unnecessary strain. This is the vessel specified for a range of Danesmoor oil system boilers.
Signs this part needs replacing
- System pressure rises quickly when the boiler heats up and falls again once it cools
- The pressure relief valve discharges during normal running
- Water is heard or seen escaping from the Schrader valve on the vessel
- The vessel feels heavy or waterlogged when the valve is depressed
- Frequent topping up of system pressure is needed to keep the boiler running
Before you order
- Confirm the GC number and appliance model against the compatibility list before ordering
- Check the vessel's physical size and connection against the one being removed, as space in the casing is tight
- Note the previous part number ZMMIS082 when matching against older documentation
- Work on the appliance should be carried out by a competent engineer, with the system drained and isolated first
Mechanical
| Part type | Expansion Vessels, Tanks & Cylinders |
|---|---|
| Length | 0.1mm |
| Width | 0.1mm |
| Depth | 0.1mm |
Compliance
| Manufacturer part number (MPN) | 87161425040 |
|---|---|
| GC number | 378-027 |
| Barcode / EAN | 4010009950851 |
| Commodity code | 7310 29 00 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | ZMMIS082, 1018307 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER DANESMOOR 12-25 OOO 1995-1998 | — | — | — | |
| WORCESTER DANESMOOR 12/14-OSO-GB OIL SYS (DEC 2001) | — | — | — | |
| WORCESTER DANESMOOR 12/14-OSO-GB OIL SYS (FEB 1998) | — | — | — | |
| WORCESTER DANESMOOR 12/14-RSO-GB OIL SYS (FEB 1998) | — | — | — | |
| WORCESTER DANESMOOR 12/14-RSO-GB OIL SYS (OCT 2001) | — | — | — | |
| WORCESTER DANESMOOR 15/19-OSO-GB OIL SYS | — | — | — | |
| WORCESTER DANESMOOR 15/19-RSO-GB OIL SYS | — | — | — | |
| WORCESTER DANESMOOR 20/25 RSO-GB OIL SYSTEM | — | — | — | |
| WORCESTER DANESMOOR 20/25-OSO-GB OIL SYS (FEB 1998) | — | — | — | |
| WORCESTER DANESMOOR 20/25-OSO-GB OIL SYS (SEPT 2001) | — | — | — |
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.
WORCESTER appliance manual — DANESMOOR 12-25 OOO 1995-1998, DANESMOOR 20/25 RSO-GB OIL SYSTEM
manualmanualWORCESTER appliance manual — DANESMOOR 12/14-OSO-GB OIL SYS (DEC 2001), DANESMOOR 12/14-OSO-GB OIL SYS (FEB 1998), DANESMOOR 12/14-RSO-GB OIL SYS (FEB 1998), DANESMOOR 12/14-RSO-GB OIL SYS (OCT 2001), DANESMOOR 15/19-OSO-GB OIL SYS, DANESMOOR 15/19-RSO-GB OIL SYS, DANESMOOR 20/25-OSO-GB OIL SYS (FEB 1998), DANESMOOR 20/25-OSO-GB OIL SYS (SEPT 2001), DANESMOOR 20/25-RSO-GB OIL SYS
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