Ideal
Ideal Diffuser Evojet 177970
Replacement diffuser for Ideal Commercial Evojet appliances, part 177970 (4038505), fitted within the combustion assembly.
At a glance
- Part type: Diffuser
- Appliance family: Ideal Commercial Evojet
£357.70
£298.08 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 Ideal 177970 diffuser is a replacement combustion component for Ideal Commercial Evojet appliances. It sits within the burner and heat exchanger assembly, where it spreads the gas and air mixture evenly across the burner surface so combustion stays stable across the full firing range. The part is listed by Ideal under the alternative number 4038505.
Signs this part needs replacing
- Visible distortion, cracking or warping of the diffuser plate
- Heavy soot or carbon build-up across the diffuser surface
- Corrosion or heat damage around the diffuser edges
- Unstable flame pattern or uneven combustion at the burner
- Repeated lockouts or combustion faults traced back to the burner assembly
Before you order
- Confirm the appliance model and serial number against the compatibility list before ordering
- Check the existing diffuser against part number 177970 and alternative number 4038505
- Inspect burner gaskets and seals while the appliance is open and renew any that are damaged
Mechanical
| Part type | Diffuser |
|---|---|
| Appliance family | Ideal Commercial Evojet |
Compliance
| Manufacturer part number (MPN) | 177970 |
|---|---|
| Commodity code | 8416 90 00 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| IDEAL COMMERCIAL EVOJET 1250 MODUATE 0 TO 10V 3PH R | — | — | — | |
| IDEAL COMMERCIAL EVOJET 1450 MODUATE READY 3PH R | — | — | — | |
| IDEAL COMMERCIAL IDEAL COMMERCIAL PARTS | — | — | — |
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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