
Worcester Bosch
Worcester Bosch Isolating Valve Cold Mains 8737603031
Cold mains isolating valve, part 8737603031, for Worcester Bosch Greenstar 2000 Combi and Greenstar combi appliances.
At a glance
- Part type: isolating valve, cold mains
- Also known as 1038299
£59.06
£49.22 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 isolating valve cold mains is a service valve used on the cold mains inlet to the appliance. It is manufactured by Worcester Bosch and fits the Greenstar 2000 Combi range and related Greenstar combi models listed below. Its function is to allow the cold water supply to the appliance to be shut off for servicing or repair.
Signs this part needs replacing
- Water weeping from the valve body or spindle
- The valve will not fully shut off the cold mains feed to the appliance
- Stiff, seized or rounded operating screw that cannot be turned
- Inlet supply cannot be isolated for servicing work
Before you order
- Confirm the appliance model matches one of the fit lines above
- Check the LPG or NG variant of the appliance against the model listing
- Verify the existing valve part number 8737603031 before ordering
- Isolate the water supply before removing or fitting the valve
Compliance
| Alternative numbers | 1038299 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 2000 COMBI GR2300iW 25 C LPG | 47-800-27 | 47-800-27 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2300iW 25 C NG | 47-800-26 | 47-800-26 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2300iW 30 C LPG | 47-800-29 | 47-800-29 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2300iW 30 C NG | 47-800-28 | 47-800-28 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 25 C LPG | 47-800-35 | 47-800-35 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 25 C NG | 47-800-34 | 47-800-34 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 30 C LPG | 47-800-37 | 47-800-37 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 30 C NG | 47-800-36 | 47-800-36 | — | — |
| WORCESTER GREENSTAR GR2300iW 25 C LPG COMBI | 47-800-27 | 47-800-27 | — | — |
| WORCESTER GREENSTAR GR2300iW 25 C NG COMBI | 47-800-26 | 47-800-26 | — | — |
Showing 10 of 16 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.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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