Worcester Bosch
Worcester Bosch Expansion Vessel With Washers 87161425070
Worcester Bosch expansion vessel, part 87161425070, supplied with washers for Greenstar Camray and Heatslave external oil-fired models.
At a glance
- Part type: Expansion vessel
- Also known as 1018313
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£145.57
£121.31 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 expansion vessel, part 87161425070, is a diaphragm-type pressure vessel fitted within the heating circuit of Worcester Bosch oil-fired condensing appliances. Its internal diaphragm separates a pre-charged air chamber from the system water, absorbing the volume increase as the water heats and holding system pressure within its working range. This version is supplied with washers for the connection.
Signs this part needs replacing
- System pressure falls repeatedly and the filling loop has to be used often
- Pressure climbs quickly when the appliance is hot and drops again once it cools
- Water discharging from the pressure relief valve
- Corrosion, water staining or damp patches around the vessel body or its connection
- Water present at the vessel valve when the air charge is checked
Before you order
- Check the GC number and the appliance data plate to confirm the vessel matches the model being worked on.
- Older documentation may list this vessel under the previous number SPK0115.
- Washers are supplied with the vessel; check whether any further seals are needed at the connection point.
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Expansion Vessels, Tanks & Cylinders |
|---|
Compliance
| Manufacturer part number (MPN) | 87161425070 |
|---|---|
| GC number | 299-341 |
| Barcode / EAN | 4010009727934 |
| Commodity code | 8403 90 90 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | SPK0115, 1018313 |
| Previous numbers | SPK0115 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR CAMRAY SYSTEM EXTERNAL 12/18 | — | — | — | |
| WORCESTER GREENSTAR CAMRAY SYSTEM EXTERNAL 18/25 | — | — | — | |
| WORCESTER GREENSTAR CAMRAY SYSTEM EXTERNAL 25/32 | — | — | — | |
| WORCESTER GREENSTAR HEATSLAVE EXTERNAL 12/18 | — | — | — | |
| WORCESTER GREENSTAR HEATSLAVE EXTERNAL 18/25 | — | — | — | |
| WORCESTER GREENSTAR HEATSLAVE EXTERNAL 25/32 | — | — | — | |
| WORCESTER HIGHFLOW 400 BF COMBI LPG | 47-311-22 | 47-311-22 | — | — |
| WORCESTER HIGHFLOW 400 BF COMBI NG | 47-311-19 | 47-311-19 | — | — |
| WORCESTER HIGHFLOW 400 ELECTRONIC BF NG | 47-311-62 | 47-311-62 | — | — |
| WORCESTER HIGHFLOW 400 ELECTRONIC FSN NG | 47-311-61 | 47-311-61 | — | — |
Showing 10 of 30 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 — GREENSTAR CAMRAY SYSTEM EXTERNAL 12/18, GREENSTAR CAMRAY SYSTEM EXTERNAL 18/25, GREENSTAR CAMRAY SYSTEM EXTERNAL 25/32
manualmanualWORCESTER appliance manual — GREENSTAR HEATSLAVE EXTERNAL 12/18, GREENSTAR HEATSLAVE EXTERNAL 18/25, GREENSTAR HEATSLAVE EXTERNAL 25/32
manualmanualWORCESTER appliance manual — HIGHFLOW 400 BF COMBI LPG (GC 47-311-22), HIGHFLOW 400 BF COMBI NG (GC 47-311-19)
manualmanualWORCESTER appliance manual — HIGHFLOW 400 ELECTRONIC BF NG (GC 47-311-62), HIGHFLOW 400 ELECTRONIC FSP NG (GC 47-311-64), HIGHFLOW 400 ELECTRONIC OF NG (GC 47-311-63), HIGHFLOW 400 OF COMBI LPG (GC 47-311-23), HIGHFLOW 400 OF COMBI NG (GC 47-311-20)
manualmanualWORCESTER appliance manual — HIGHFLOW 400 ELECTRONIC FSN NG (GC 47-311-61)
manualmanualWORCESTER appliance manual — HIGHFLOW 400 RSF COMBI LPG (GC 47-311-21), HIGHFLOW 400 RSF COMBI NG (GC 47-311-18)
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