Vaillant
Vaillant Adaptor 509683
Vaillant 509683 adaptor for VU 656-7, VU 656/4-5, Ecomax 665 and Ecotec VU 656/4-5 gas boilers.
At a glance
- Also known as 1378262
£9.60
£8.00 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 509683 is an adaptor listed in the manufacturer's gas boiler spares range. It is used on the VU 656 series of Vaillant appliances, where it forms part of the connection between boiler components. The catalogue description records it as Adapter, CPL.
Signs this part needs replacing
- Visible corrosion, scaling or pitting on the adaptor body
- Weeping or dripping at the adaptor joint
- Staining or residue around the connection point
- Difficulty achieving a sound seal when the joint is remade
- Cracking or deformation of the adaptor
Before you order
- Confirm your appliance model against the fitment list above
- Check the GC number on your boiler's data badge matches the models listed
- Inspect the existing adaptor and note its part number before removal
- Confirm how many adaptors are required for the repair
Mechanical
| Part type | ADAPTORS & CONNECTORS |
|---|
Compliance
| Manufacturer part number (MPN) | 509683 |
|---|---|
| Barcode / EAN | 4024074484067 |
| Alternative numbers | 1378262 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VU 656-7 | 41-044-59 | 41-044-59 | — | — |
| VAILLANT VU 656/4-5 | 41-044-59 | 41-044-59 | — | — |
| VAILLANT ecoMAX 665 VU 656-7 (2006-2006) | 41-044-59 | 41-044-59 | — | — |
| VAILLANT ecoTEC VU 656/4-5 (2007-2015) | 41-044-59 | 41-044-59 | — | — |
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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