Vaillant
Vaillant Draft Diverter 509590
Draft diverter rated at 150 kW for the Vaillant Atmocraft VK 1504/9 gas boiler.
At a glance
- Part type: draft diverter
- Also known as 1378238
£257.11
£214.26 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 Vaillant 509590 is a draft diverter rated at 150 kW, fitted to the Atmocraft VK 1504/9 gas boiler. It sits in the flue path and stabilises the draught across the appliance so that combustion products are drawn away consistently as chimney conditions change.
Signs this part needs replacing
- Visible corrosion, cracking or distortion of the diverter body
- Flue gases spilling or unstable draught at the draught hood
- Soot deposits or other signs of poor combustion around the flue connection
- Boiler lockouts or flame failure linked to flue performance
- Rattling or movement of the diverter within its mounting
Before you order
- Confirm the appliance model and serial details from the data plate
- Check part number 509590 against the manufacturer's parts list for your appliance
- Confirm the 150 kW rating matches your boiler
- Inspect the flue and mounting for damage that may also need attention
Compliance
| Barcode / EAN | 4024074485439 |
|---|---|
| Alternative numbers | 1378238 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT atmoCRAFT VK 1504/9 (2004-2013) | — | — | — |
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.
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