Worcester Bosch
Worcester Bosch nozzle 5.3 (8716117047)
Worcester Bosch burner nozzle for the 21i, 24i, 25i and 30i System ErP boilers and the ZWBE 30-3 C 23.
At a glance
- Also known as 1031221
- Combustion and burner work must only be carried out by a Gas Safe registered engineer
Showing prices
£9.84
£8.20 ex. VAT · VAT at 20%
Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
A genuine Worcester Bosch burner nozzle fitted to the 21i, 24i, 25i and 30i System ErP boilers and the ZWBE 30-3 C 23.
Signs this part needs replacing
- The burner is not firing cleanly or is producing sooting
- The nozzle is visibly worn, corroded or partially blocked
- Combustion readings are outside the manufacturer's tolerance for the appliance
- A service engineer identifies the fitted nozzle does not match the appliance's rated gas setting
Before you order
- Confirm the appliance code on the boiler's data badge matches one of the models listed above
- Combustion and burner work must only be carried out by a Gas Safe registered engineer
- Isolate the gas and electrical supply before starting any work
Compliance
| GC number | J25-236 |
|---|---|
| Barcode / EAN | 4054925284164 |
| Alternative numbers | 1031221 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 21i ErP SYSTEM NG | 41-406-29 | 41-406-29 | — | — |
| WORCESTER GREENSTAR 24i ErP SYSTEM NG | 41-406-31 | 41-406-31 | — | — |
| WORCESTER GREENSTAR 25i ErP COMBI NG | 47-406-60 | 47-406-60 | — | — |
| WORCESTER GREENSTAR 30i ErP COMBI NG | 47-406-62 | 47-406-62 | — | — |
| WORCESTER WORCESTER GREENSTAR 21i ErP SYSTEM NG | — | — | — | |
| WORCESTER WORCESTER GREENSTAR 24i ErP SYSTEM NG | — | — | — | |
| WORCESTER WORCESTER GREENSTAR 25i ErP COMBI NG | — | — | — | |
| WORCESTER WORCESTER GREENSTAR 30i ErP COMBI NG | — | — | — |
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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 technical questions yet for this part.
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