Vaillant
Vaillant Insulation 16mm With Clips 0020143489
Vaillant 16 mm heat exchanger insulation with clips, part number 0020143489, for ecoTEC and related VU/VUW boilers.
At a glance
- Also known as 1387720
Showing prices
£49.02
£40.85 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 0020143489 is a 16 mm insulation section supplied with retaining clips, intended for the heat exchanger on Vaillant gas boilers. It sits against the heat exchanger to limit heat loss into the appliance casing. The part is listed under Vaillant casing and gas boiler spares.
Signs this part needs replacing
- Insulation torn, split or missing from the heat exchanger
- Clips broken or absent, so the insulation no longer stays in position
- Insulation compressed, hardened or discoloured through heat exposure
- Visible scorching or heat marking on the insulation surface
Before you order
- Confirm your boiler model against the fit list above
- Check the existing insulation is 16 mm thick
- Check whether the retaining clips are present on your appliance
Compliance
| Barcode / EAN | 4024074669181 |
|---|---|
| Alternative numbers | 1387720 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VU 126/5-5 A R4 | 41-044-78 | 41-044-78 | — | — |
| VAILLANT VU 126/5-5 R2 | 41-044-60 | 41-044-60 | — | — |
| VAILLANT VU 126/5-5 R4 | 41-044-60 | 41-044-60 | — | — |
| VAILLANT VU 156/5-5 A R4 | 41-044-79 | 41-044-79 | — | — |
| VAILLANT VU 156/5-5 R2 | 41-044-61 | 41-044-61 | — | — |
| VAILLANT VU 156/5-5 R4 | 41-044-61 | 41-044-61 | — | — |
| VAILLANT VU 186/5-5 A R4 | 41-044-80 | 41-044-80 | — | — |
| VAILLANT VU 186/5-5 R2 | 41-044-62 | 41-044-62 | — | — |
| VAILLANT VU 186/5-5 R4 | 41-044-62 | 41-044-62 | — | — |
| VAILLANT VU 226/5-3 A R4 - (ONLY GUERNSEY/JERSEY) | — | — | — |
Showing 10 of 130 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 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 R2 (GC 41-044-60), VU 126/5-5 R4 (GC 41-044-60), VU 156/5-5 R2 (GC 41-044-61), VU 156/5-5 R4 (GC 41-044-61), VU 186/5-5 R2 (GC 41-044-62), VU 186/5-5 R4 (GC 41-044-62), VU 246/5-5 R2 (GC 41-044-63), VU 246/5-5 R4 (GC 41-044-63), VU 306/5-5 R2 (GC 41-044-64), VU 306/5-5 R4 (GC 41-044-64), VU 376/5-5 R2 (GC 41-044-65), VU 376/5-5 R4 (GC 41-044-65), VUW 246/5-5 R2 (GC 41-044-63), 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 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 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 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 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 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 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 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 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 — 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 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 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 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 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 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 316/3-5 R5 (GC 47-044-32), ecoTEC PLUS 831 VUW 316/3-5 R5 (2013 - 2013) (GC 47-044-32)
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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