Vaillant
Vaillant Draft Diverter 509591
Vaillant 509591 draft diverter rated at 165 kW for the Atmocraft VK 1654/9 appliance.
At a glance
- Part type: draft diverter
- Appliance family: Atmocraft VK 1654/9
- Also known as 1378240
£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 509591 is a draft diverter rated at 165 kW, listed by the manufacturer as a complete assembly. It is fitted to the Vaillant Atmocraft VK 1654/9 appliance, where it stabilises draught through the flue path and provides a safe route for spillage at the draught hood.
Signs this part needs replacing
- Visible corrosion, cracking or distortion of the diverter body or its joints
- Signs of flue gas spillage at the draught hood during operation
- Unstable or reversed draught readings when the appliance is tested
- Combustion readings drifting outside the manufacturer's stated range
- Repeated shutdowns or lockouts linked to flue or draught faults
Before you order
- Confirm the appliance model on the data plate matches the Vaillant Atmocraft VK 1654/9
- Check the appliance rating against the 165 kW rating of this part
- Verify part number 509591 against the manufacturer's parts list for your appliance
- Inspect adjacent flue components for damage that may also need attention
Compliance
| Barcode / EAN | 4024074485446 |
|---|---|
| Alternative numbers | 1378240 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT atmoCRAFT VK 1654/9 (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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