Sime
Sime Heat Exchanger 6174223
Primary heat exchanger for Sime gas boilers, part number 6174223.
At a glance
- Also known as 2040654
Showing prices
£350.02
£291.68 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 6174223 is a primary heat exchanger for Sime gas boilers. It transfers heat from the combustion gases to the domestic water circuit. This component is used across a range of Sime boiler models.
Signs this part needs replacing
- Water leaking from the heat exchanger body or connections.
- Boiler repeatedly locking out or failing to ignite.
- Reduced hot water output or inconsistent heating.
- Visible corrosion, scale build-up, or soot on the heat exchanger surfaces.
- Overheating or kettling noises from the boiler.
Before you order
- Confirm your boiler model matches one of the fitments listed above.
- Check the existing part number on the heat exchanger.
- Verify the manufacturer reference PR24326004 if visible.
- Ensure the system is depressurised and isolated before replacement.
Compliance
| Alternative numbers | 2040654 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SIME FORMAT 30BF GPL - 8092961 | — | — | — | |
| SIME FRIENDLY FORMAT 100E - 8092962 | 47-719-09 | 47-719-09 | — | — |
| SIME OPEN 30 BF MET - 8092107 | — | — | — | |
| SIME PLANET 30BF MET - 8093555 | — | — | — | |
| SIME PLANET AQUAQUICK 30 PLUS GPL - 8102028 | — | — | — | |
| SIME PLANET AQUAQUICK 30 PLUS MET - 8102027 | — | — | — | |
| SIME PLANET AQUAQUICK 30BF GPL - 8102003 | — | — | — | |
| SIME PLANET AQUAQUICK 30TS GPL - 8102013 | — | — | — | |
| SIME SIME FRIENDLY FORMAT 100E | — | — | — | |
| SIME SIME SUPER MKII 105 | — | — | — |
Showing 10 of 11 compatible appliances.
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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