Sime
Sime Premix Burner 6278304
Premix burner for Sime Format and Dewy Zip gas boilers, manufacturer part number 6278304.
At a glance
- Part type: Premix burner
- Also known as 2042568
Showing prices
£62.99
£52.49 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
The Sime 6278304 is a premix burner for Sime gas boilers. It is the component where gas and air are mixed ahead of combustion at the burner surface. It is used across the Sime Format and Dewy Zip appliance families.
Signs this part needs replacing
- Boiler locks out or fails to ignite
- Unstable or rough flame at the burner
- Soot or discolouration on the burner surface
- Poor combustion readings or repeated combustion faults
- Boiler short-cycling or cutting out on demand
Before you order
- Confirm your appliance model against the fitment list above
- Check the existing burner's part number matches 6278304
- Cross-check the GC number on the boiler data badge where applicable
- If unsure, consult the manufacturer's parts list for your model
Compliance
| Alternative numbers | 2042568 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SIME DEWY ZIP BF 25 SOLAR MET - 8101215 | — | — | — | |
| SIME FORMAT DEWY ZIP 25 BF GPL - 8101201 | — | — | — | |
| SIME FORMAT DEWY ZIP 25 BF MET - 8101200 | — | — | — | |
| SIME FORMAT SYSTEM 25 HE - 8101250 | 41-719-17 | 41-719-17 | — | — |
| SIME OPEN DEWY ZIP 25 BF MET - 8104900 | — | — | — | |
| SIME OPEN DEWY ZIP 25/40 MET - 8104901 | — | — | — | |
| SIME SIME FORMAT SYSTEM 25 HE | — | — | — |
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.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.