Worcester Bosch
Worcester Bosch Nozzle 30 kW NG 5.47mm 8738902774
Natural gas nozzle for Worcester Bosch Greenstar 1000 Series GR1000W 30 C boilers, rated 30 kW with a 5.47 mm orifice.
At a glance
- Appliance family: Worcester Greenstar 1000 Series
- Also known as 1038499
£11.30
£9.42 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 nozzle 8738902774 is a gas metering nozzle rated at 30 kW for natural gas, with a 5.47 mm orifice. It is used on Worcester Greenstar 1000 Series GR1000W 30 C NG boilers to control the gas flow into the burner.
Signs this part needs replacing
- Boiler output falls noticeably below the expected 30 kW rating.
- Combustion analysis readings drift outside the manufacturer's tolerances.
- Difficulty establishing or maintaining a stable flame, or repeated ignition lockouts.
- A blocked or restricted nozzle orifice found during servicing.
Before you order
- Confirm the appliance model is a Worcester Greenstar GR1000W 30 C NG.
- Check the boiler is operating on natural gas, not LPG.
- Match the existing nozzle rating (30 kW) and orifice size (5.47 mm).
- Check the appliance data badge for the model and GC number where available.
Compliance
| Alternative numbers | 1038499 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 1000 SERIES GR1000W 30 C NG | 47-800-39 | 47-800-39 | — | — |
| 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.
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