
Worcester Bosch
Worcester Bosch Adapter (Pump) 8737604396
Pump adapter 8737604396 for Worcester Bosch Greenstar 1000 and 2000 series boilers.
At a glance
- Part type: pump adapter
- Also known as 1038435
£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 Worcester Bosch 8737604396 is a pump adapter for Greenstar 1000 and Greenstar 2000 series appliances. It forms the connection between the circulating pump and the appliance's water circuit. It is supplied as an individual component for service and repair work.
Signs this part needs replacing
- Water weeping or dripping from the pump connection joint
- Visible corrosion, scale or cracking on the adapter body
- Loss of system pressure traced to the pump connection
- Pump noise or vibration after the joint has been disturbed
Before you order
- Check the appliance model and GC number on the data badge against the fit list above.
- Confirm the part number 8737604396 against the existing component or the manufacturer's parts list.
- Inspect the pump connection for separate seals or washers that may also need replacing.
Compliance
| Alternative numbers | 1038435 |
|---|
| 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 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 GR1000W 24 C NG | — | — | — | |
| WORCESTER GREENSTAR GR1000W 30 C NG | — | — | — | |
| WORCESTER GREENSTAR GR2301iW 25 C LPG COMBI | — | — | — | |
| WORCESTER GREENSTAR GR2301iW 25 C NG COMBI | — | — | — |
Showing 10 of 12 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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