Worcester Bosch
Worcester Bosch Valve (DCW) 8737604743
Domestic cold water valve (DCW) for Worcester Bosch Greenstar 1000 Series boilers.
At a glance
- Appliance family: Worcester Greenstar 1000 Series
- Also known as 1038491
£29.36
£24.47 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 VALVE (DCW) is a Worcester Bosch component listed under part number 8737604743. DCW denotes its role in the domestic cold water circuit, controlling cold water flow within the appliance. It is intended for Worcester Bosch Greenstar 1000 Series gas boilers.
Signs this part needs replacing
- Water weeping or visible drips around the cold water inlet area
- Persistent dampness or scale tracking at the valve body or its connections
- Loss of cold water flow or restricted flow into the appliance
- Whistling or vibration from the valve when the cold water supply is under pressure
Before you order
- Confirm the boiler model against the fit list above, as Gr1000W 24 C NG and Gr1000W 30 C NG variants are covered
- Check the part number on the existing valve or the appliance documentation matches 8737604743
- Inspect the surrounding pipework and connections for damage before fitting, as the fault may lie beyond the valve itself
- Isolate the cold water supply and depressurise the appliance before starting work
Compliance
| Alternative numbers | 1038491 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 1000 SERIES GR1000W 24 C NG | 47-800-38 | 47-800-38 | — | — |
| WORCESTER GREENSTAR 1000 SERIES GR1000W 30 C NG | 47-800-39 | 47-800-39 | — | — |
| WORCESTER GREENSTAR GR1000W 24 C NG | — | — | — | |
| WORCESTER GREENSTAR GR1000W 30 C NG | — | — | — |
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.
No technical questions yet for this part.
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