Worcester Bosch
Worcester Bosch DHW Connection 8737603034
Worcester Bosch DHW connection, part 8737603034, for Greenstar 2000 Combi and Gr2300IW/Gr2301IW appliances.
At a glance
- Part type: DHW connection
- Appliance family: Greenstar 2000 Combi, Greenstar Gr2300IW and Gr2301IW
- Also known as 1038303
£29.60
£24.67 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 DHW connection is a Worcester Bosch component (part number 8737603034) used on Greenstar 2000 Combi and Gr2300IW/Gr2301IW appliances. It forms the domestic hot water connection point within the appliance, carrying mains-fed water through to the DHW circuit. It is a serviceable part intended for replacement when the existing connection is no longer sound.
Signs this part needs replacing
- Weeping or dripping at the DHW connection point during a hot water draw
- Water staining, scale or corrosion around the connection
- Loose or degraded connection causing pressure loss in the DHW circuit
- Visible deformation or damage to the connection body
Before you order
- Confirm the appliance model against the fit list above before ordering
- Locate the DHW connection point and check the fault is at the connection and not an adjacent joint
- Isolate the water supply and depressurise the appliance before any work
- Check the part number 8737603034 against the existing component where visible
Compliance
| Alternative numbers | 1038303 |
|---|
| 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.
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