Worcester Bosch
Worcester Bosch Water Valve Assembly 87070026330
Water valve assembly for Worcester Bosch W3501KV1B31S0595 and W4001KV1B31S0595 boilers, part number 87070026330.
At a glance
- Also known as 1012069
- Gas appliance work should be carried out by a Gas Safe registered engineer
£347.62
£289.68 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 87070026330 is a water valve assembly for Worcester Bosch gas boilers. It sits within the diverter valve assembly and controls the movement of water between the heating circuit and the domestic hot water circuit. It is listed for use with the W3501KV1B31S0595 and W4001KV1B31S0595 models.
Signs this part needs replacing
- No hot water at the tap while the boiler continues to fire for heating
- Radiators warming up when only hot water is demanded
- Hot water running cold or fluctuating in temperature
- The valve failing to move between heating and hot water positions
- Scale, debris or visible damage around the valve body or seals
Before you order
- Confirm your boiler model matches one of the fitment listings above
- Check the part number 87070026330 against the existing component or the manufacturer's parts list
- Establish whether the full diverter valve assembly or the water valve section alone is required
- Gas appliance work should be carried out by a Gas Safe registered engineer
Compliance
| Barcode / EAN | 4010009907008 |
|---|---|
| Alternative numbers | 1012069 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER BOSCH W3501KV1B31S0595 | — | — | — | |
| WORCESTER BOSCH W4001KV1B31S0595 | — | — | — |
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.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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