Vaillant
Vaillant Expansion Vessel Tube 0020144605
Vaillant expansion vessel tube 0020144605 for ecoTEC PLUS and PRO gas boilers, connecting the vessel to the heating circuit.
At a glance
- Also known as 1383485
Showing prices
£15.52
£12.93 ex. VAT · VAT at 20%
Available to order · 3 working days
Available to order · 3 working days
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 expansion vessel tube, part number 0020144605, is a connection tube used on Vaillant ecoTEC gas boilers. It links the expansion vessel to the boiler's heating circuit so the vessel can absorb pressure changes as the system heats and cools. It is a serviceable component within the boiler's hydraulic assembly.
Signs this part needs replacing
- Water weeping or dripping from the tube or its unions
- Visible corrosion, pitting or scale on the tube
- Unexplained pressure loss on the boiler pressure gauge
- Water staining around the expansion vessel connection
- Repeated low-pressure lockouts
Before you order
- Confirm your boiler model and GC number against the fitment list above
- Check the part number on the existing tube matches 0020144605
- Inspect the expansion vessel itself — if it has failed, it may also need replacing
- Check the condition of the tube connections before ordering
Compliance
| Barcode / EAN | 4024074660768 |
|---|---|
| Alternative numbers | 1383485 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VAILLANT ECOTEC PLUS 612 VU 126-5-5 | — | — | — | |
| VAILLANT VAILLANT ECOTEC PLUS 612 VU 126-5-5 R1 | — | — | — | |
| VAILLANT VAILLANT ECOTEC PLUS 612 VU 126-5-5 R2 | — | — | — | |
| VAILLANT VAILLANT ECOTEC PLUS 615 VU 156-5-5 | — | — | — | |
| VAILLANT VAILLANT ECOTEC PLUS 615 VU 156-5-5 R1 | — | — | — | |
| VAILLANT VAILLANT ECOTEC PLUS 615 VU 156-5-5 R2 | — | — | — | |
| VAILLANT VAILLANT ECOTEC PLUS 618 VU 186-5-5 | — | — | — | |
| VAILLANT VAILLANT ECOTEC PLUS 618 VU 186-5-5 R1 | — | — | — | |
| VAILLANT VAILLANT ECOTEC PLUS 618 VU 186-5-5 R2 | — | — | — | |
| VAILLANT VAILLANT ECOTEC PLUS 624 VU 246-5-5 | — | — | — |
Showing 10 of 247 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 126/5-5 (GC 41-044-60), VU 126/5-5 R1 (GC 41-044-60), VU 126/5-5 R2 (GC 41-044-60), VU 126/5-5 R4 (GC 41-044-60), VU 156/5-5 (GC 41-044-61), VU 156/5-5 R1 (GC 41-044-61), VU 156/5-5 R2 (GC 41-044-61), VU 156/5-5 R4 (GC 41-044-61), VU 186/5-5 (GC 41-044-62), VU 186/5-5 R1 (GC 41-044-62), VU 186/5-5 R2 (GC 41-044-62), VU 186/5-5 R4 (GC 41-044-62), VU 246/5-5 (GC 41-044-63), VU 246/5-5 R1 (GC 41-044-63), VU 246/5-5 R2 (GC 41-044-63), VU 246/5-5 R4 (GC 41-044-63), VU 306/5-5 (GC 41-044-63), VU 306/5-5 R1 (GC 41-044-64), VU 306/5-5 R2 (GC 41-044-64), VU 306/5-5 R4 (GC 41-044-64), VU 376/5-5 (GC 41-044-65), VU 376/5-5 R1 (GC 41-044-65), VU 376/5-5 R2 (GC 41-044-65), VU 376/5-5 R4 (GC 41-044-65), VUW 246/5-5 (GC 47-044-40), VUW 246/5-5 R1 (GC 47-044-40), VUW 246/5-5 R2 (GC 41-044-63), VUW 246/5-5 R4 (GC 47-044-40), VUW 316/5-5 (GC 47-044-41), VUW 316/5-5 R1 (GC 47-044-41), VUW 316/5-5 R2 (GC 47-044-41), VUW 316/5-5 R4 (GC 47-044-41), VUW 376/5-5 (GC 47-044-42), VUW 376/5-5 R1 (GC 47-044-42), VUW 376/5-5 R2 (GC 47-044-42), VUW 376/5-5 R4 (GC 47-044-42), ecoTEC PLUS 612 VU 126/5-5 (2012-2012) (GC 41-044-60), ecoTEC PLUS 612 VU 126/5-5 R1 (2012-2013) (GC 41-044-60), ecoTEC PLUS 612 VU 126/5-5 R2 (2013-2015) (GC 41-044-60), ecoTEC PLUS 612 VU 126/5-5 R4 (2015-2015) (GC 41-044-60), ecoTEC PLUS 615 VU 156/5-5 (2012-2012) (GC 41-044-61), ecoTEC PLUS 615 VU 156/5-5 R1 (2012-2013) (GC 41-044-61), ecoTEC PLUS 615 VU 156/5-5 R2 (2013-2015) (GC 41-044-61), ecoTEC PLUS 615 VU 156/5-5 R4 (2015-2015) (GC 41-044-61), ecoTEC PLUS 618 VU 186/5-5 (2012-2012) (GC 41-044-62), ecoTEC PLUS 618 VU 186/5-5 R1 (2012-2013) (GC 41-044-62), ecoTEC PLUS 618 VU 186/5-5 R2 (2013-2015) (GC 41-044-62), ecoTEC PLUS 618 VU 186/5-5 R4 (2015-2015) (GC 41-044-62), ecoTEC PLUS 624 VU 246/5-5 (2012-2012) (GC 41-044-63), ecoTEC PLUS 624 VU 246/5-5 R1 (2012-2013) (GC 41-044-63), ecoTEC PLUS 624 VU 246/5-5 R2 (2013-2015) (GC 41-044-63), ecoTEC PLUS 624 VU 246/5-5 R4 (2015-2015) (GC 41-044-63), ecoTEC PLUS 630 VU 306/5-5 (2012-2012) (GC 41-044-63), ecoTEC PLUS 630 VU 306/5-5 R1 (2012-2013) (GC 41-044-64), ecoTEC PLUS 630 VU 306/5-5 R2 (2013-2014) (GC 41-044-64), ecoTEC PLUS 630 VU 306/5-5 R4 (2015-2015) (GC 41-044-64), ecoTEC PLUS 637 VU 376/5-5 (2012-2012) (GC 41-044-65), ecoTEC PLUS 637 VU 376/5-5 R1 (2012-2013) (GC 41-044-65), ecoTEC PLUS 637 VU 376/5-5 R2 (2013-2014) (GC 41-044-65), ecoTEC PLUS 637 VU 376/5-5 R4 (2014-2015) (GC 41-044-65), ecoTEC PLUS 824 VUW 246/5-5 (2012-2012) (GC 47-044-40), ecoTEC PLUS 824 VUW 246/5-5 R1 (2012-2013) (GC 47-044-40), ecoTEC PLUS 824 VUW 246/5-5 R2 (2013-2015) (GC 41-044-63), ecoTEC PLUS 824 VUW 246/5-5 R4 (2015-2015) (GC 47-044-40), ecoTEC PLUS 831 VUW 316/5-5 (2012-2012) (GC 47-044-41), ecoTEC PLUS 831 VUW 316/5-5 R1 (2012-2013) (GC 47-044-41), 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 (2012-2012) (GC 47-044-42), ecoTEC PLUS 837 VUW 376/5-5 R1 (2012-2013) (GC 47-044-42), 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 — VU 126/5-5 A R4 (GC 41-044-78), VU 156/5-5 A R4 (GC 41-044-79), VU 186/5-5 A R4 (GC 41-044-80), VU 246/5-5 A R4 (GC 41-044-82), VU 306/5-5 A R4 (GC 41-044-83), VU 376/5-5 A R4 (GC 41-044-85), 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 612 VU 126/5-5 A R4 (2015) (GC 41-044-78), ecoTEC PLUS 615 VU 156/5-5 A R4 (2015) (GC 41-044-79), ecoTEC PLUS 618 VU 186/5-5 A R4 (2015) (GC 41-044-80), ecoTEC PLUS 624 VU 246/5-5 A R4 (2015) (GC 41-044-82), ecoTEC PLUS 630 VU 306/5-5 A R4 (2015) (GC 41-044-83), ecoTEC PLUS 637 VU 376/5-5 A R4 (2015) (GC 41-044-85), 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 — VU 126/5-5 R6 (GC 41-694-20), VU 156/5-5 R6 (GC 41-694-21), VU 186/5-5 R6 (GC 41-694-22), VU 186/5-5 R6 LPG (GC 41-694-23), VU 246/5-5 R6 (GC 41-694-24), VU 306/5-5 R6 (GC 41-694-25), VU 306/5-5 R6 LPG (GC 41-694-26), VU 386/5-5 R6 (GC 41-694-27), 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 612 VU 126/5-5 R6 (2017) (GC 41-694-20), ecoTEC PLUS 615 VU 156/5-5 R6 (2017) (GC 41-694-21), ecoTEC PLUS 618 VU 186/5-5 R6 (2017) (GC 41-694-22), ecoTEC PLUS 618 VU 186/5-5 R6 LPG (2017) (GC 41-694-23), ecoTEC PLUS 624 VU 246/5-5 R6 (2017) (GC 41-694-24), ecoTEC PLUS 630 VU 306/5-5 R6 (2017) (GC 41-694-25), ecoTEC PLUS 630 VU 306/5-5 R6 LPG (2017) (GC 41-694-26), ecoTEC PLUS 637 VU 386/5-5 R6 (2017) (GC 41-694-27), 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 — VU 256/5-7 (GC 41-694-02), ecoTEC EXCLUSIVE 627 VU 256/5-7 (2016) (GC 41-694-02)
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 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)
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