Vaillant
Vaillant Connection Composite 0020140559
Composite connection for Vaillant ecoTEC Pro and ecoTEC Plus VUW and VUI boilers, part number 0020140559.
At a glance
- Also known as 1383557, N7308
Showing prices
£35.47
£29.56 ex. VAT · VAT at 20%
In stock
Cut-off passed — dispatches next working day
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 Vaillant 0020140559 is a composite connection used in the ecoTEC Pro and ecoTEC Plus VUW and VUI boiler families. It forms part of the appliance's internal connection assembly and is supplied as a single composite moulding. The part sits within the gas boiler spares range for these ecoTEC models.
Signs this part needs replacing
- Weeping or dripping at the connection joint
- Visible cracks, crazing or deformation in the composite body
- Damp staining or limescale trails around the connection
- Repeated pressure loss on the boiler requiring frequent top-ups
- Discolouration or brittleness consistent with long-term heat exposure
Before you order
- Confirm your appliance model and GC number against the fitment list above
- Check the part number on the existing component or in the manufacturer's parts list
- Note the revision suffix (R1, R2, R4, R6) as fitment varies between revisions
- Verify the connection is the correct item for your appliance before removing the old part
Compliance
| Barcode / EAN | 4024074626191 |
|---|---|
| Alternative numbers | 1383557, N7308 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VAILLANT ECOTEC PLUS 824 - VUW 246/5-5 R2 | — | — | — | |
| VAILLANT VAILLANT ECOTEC PLUS 831 - VUW 316/5-5 R2 | — | — | — | |
| VAILLANT VAILLANT ECOTEC PLUS 837 - VUW 376/5-5 R2 | — | — | — | |
| VAILLANT VAILLANT ECOTEC PLUS 937 VUI 376/5-5 R2 | — | — | — | |
| VAILLANT VAILLANT ECOTEC PRO 24 - VUW 246/3-3 R2 | — | — | — | |
| VAILLANT VAILLANT ECOTEC PRO 24 - VUW 246/5-3 | — | — | — | |
| VAILLANT VAILLANT ECOTEC PRO 24 - VUW 246/5-3 R1 | — | — | — | |
| VAILLANT VAILLANT ECOTEC PRO 24 - VUW 246/5-3 R2 | — | — | — | |
| VAILLANT VAILLANT ECOTEC PRO 28 - VUW 286/3-3 R2 | — | — | — | |
| VAILLANT VAILLANT ECOTEC PRO 28 - VUW 286/5-3 | — | — | — |
Showing 10 of 104 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.
manual
VAILLANT appliance manual — VU 256/5-7 (GC 41-694-02), ecoTEC EXCLUSIVE 627 VU 256/5-7 (2016) (GC 41-694-02)
manualmanualVAILLANT appliance manual — VUW 196/5-5 R6 (GC 47-044-83), VUW 246/5-5 R6 (GC 47-044-84), VUW 246/5-5 R6 LPG (GC 47-044-85), VUW 286/5-5 R6 (GC 47-044-86), VUW 306/5-5 R6 (GC 47-044-82), ecoTEC PLUS 825 VUW 196/5-5 R6 (2017) (GC 47-044-83), ecoTEC PLUS 832 VUW 246/5-5 R6 (2017) (GC 47-044-84), ecoTEC PLUS 832 VUW 246/5-5 R6 LPG (2017) (GC 47-044-85), ecoTEC PLUS 835 VUW 306/5-5 R6 (2017) (GC 47-044-82), ecoTEC PLUS 838 VUW 286/5-5 R6 (2017) (GC 47-044-86)
manualmanualVAILLANT appliance manual — VUW 246/5-3 (GC 47-044-44), VUW 246/5-3 R1 (GC 47-044-44), VUW 246/5-3 R2 (GC 47-044-44), VUW 246/5-3 R4 (GC 47-044-44), VUW 286/5-3 (GC 47-044-45), VUW 286/5-3 R1 (GC 47-044-45), VUW 286/5-3 R2 (GC 47-044-45), VUW 286/5-3 R4 (GC 47-044-45), ecoTEC PRO 24 VUW 246/5-3 (2012-2012) (GC 47-044-44), ecoTEC PRO 24 VUW 246/5-3 R1 (2012-2013) (GC 47-044-44), ecoTEC PRO 24 VUW 246/5-3 R2 (2013-2015) (GC 47-044-44), ecoTEC PRO 24 VUW 246/5-3 R4 (2015-2015) (GC 47-044-44), ecoTEC PRO 28 VUW 286/5-3 (2012-2012) (GC 47-044-45), ecoTEC PRO 28 VUW 286/5-3 R1 (2012-2013) (GC 47-044-45), ecoTEC PRO 28 VUW 286/5-3 R2 (2013-2015) (GC 47-044-45), ecoTEC PRO 28 VUW 286/5-3 R4 (2015-2015) (GC 47-044-45)
manualmanualVAILLANT appliance manual — VUW 246/5-3 A R4 (GC 47-044-54), VUW 286/5-3 A R4 (GC 47-044-55), VUW 306/5-3 R4 (GC 47-044-52), ecoTEC PRO 24 VUW 246/5-3 A R4 (2015-2017) (GC 47-044-54), ecoTEC PRO 28 VUW 286/5-3 A R4 (2015-2017) (GC 47-044-55), ecoTEC PRO 30 VUW 306/5-3 R4 (2015) (GC 47-044-52)
manualmanualVAILLANT appliance manual — VUW 246/5-3 R6 (GC 47-044-88), VUW 286/5-3 R6 (GC 47-044-89), VUW 286/5-3 R6 LPG (GC 47-044-90), ecoTEC PRO 24 VUW 246/5-3 R6 (2017) (GC 47-044-88), ecoTEC PRO 28 VUW 286/5-3 R6 (2017) (GC 47-044-89), ecoTEC PRO 28 VUW 286/5-3 R6 LPG (2017) (GC 47-044-90)
manualmanualVAILLANT appliance manual — VUW 246/5-5 R4 (GC 47-044-40), VUW 316/5-5 R2 (GC 47-044-41), VUW 316/5-5 R4 (GC 47-044-41), VUW 376/5-5 R2 (GC 47-044-42), VUW 376/5-5 R4 (GC 47-044-42), ecoTEC PLUS 824 VUW 246/5-5 R4 (2015-2015) (GC 47-044-40), ecoTEC PLUS 831 VUW 316/5-5 R2 (2013-2015) (GC 47-044-41), ecoTEC PLUS 831 VUW 316/5-5 R4 (2015-2015) (GC 47-044-41), ecoTEC PLUS 837 VUW 376/5-5 R2 (2013-2014) (GC 47-044-42), ecoTEC PLUS 837 VUW 376/5-5 R4 (2015-2015) (GC 47-044-42)
manualmanualVAILLANT appliance manual — VUW 256/5-5 R4 (GC 47-044-57), VUW 326/5-5 R4 (GC 47-044-58), VUW 356/5-5 R4 (GC 47-044-53), VUW 386/5-5 R4 (GC 47-044-60), ecoTEC PLUS 825 VUW 256/5-5 R4 (2015) (GC 47-044-57), ecoTEC PLUS 832 VUW 326/5-5 R4 (2015) (GC 47-044-58), ecoTEC PLUS 835 VUW 356/5-5 R4 (2015) (GC 47-044-53), ecoTEC PLUS 838 VUW 386/5-5 R4 (2015) (GC 47-044-60)
manualmanualVAILLANT appliance manual — VUW 356/5-7 (GC 47-044-66), VUW 436/5-7 (GC 47-044-67), ecoTEC EXCLUSIVE 835 VUW 356/5-7 (2016) (GC 47-044-66), ecoTEC EXCLUSIVE 843 VUW 436/5-7 (2016) (GC 47-044-67)
manualNo technical questions yet for this part.
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