Vaillant
Vaillant Sealing Ring 0020143503
Vaillant sealing ring pack of 10, part number 0020143503, for compatible Vaillant VU, Ecotec and Arotherm VWZ MWT 150 appliances.
At a glance
- Also known as 1385950
£16.31
£13.59 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
This is a pack of 10 sealing rings, manufacturer part number 0020143503, from Vaillant. It is used to create a fluid-tight seal on compatible Vaillant VU, Ecotec and Arotherm VWZ MWT 150 appliances. The sealing ring is a service part for maintaining leak-free connections during repair or reassembly.
Signs this part needs replacing
- Visible water or weeping at the joint where the sealing ring is fitted.
- Damp patches, corrosion or limescale staining around the connection.
- The sealing ring is hardened, cracked, flattened or deformed.
- A joint that continues to leak after correct tightening.
- Repeated loss of system pressure or need to top up.
Before you order
- Confirm your appliance model is listed in the Fits section.
- Check the existing part number is 0020143503.
- Check how many sealing rings are required for the repair.
- Confirm the pack of 10 meets your quantity needs.
Compliance
| Alternative numbers | 1385950 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VU 806/5-5 R4 | 41-044-68 | 41-044-68 | — | — |
| VAILLANT VU GB 1006/5-5 R2 | 41-044-69 | 41-044-69 | — | — |
| VAILLANT VU GB 1006/5-5 R3 | 41-044-69 | 41-044-69 | — | — |
| VAILLANT VU GB 1206/5-5 R2 | 41-044-70 | 41-044-70 | — | — |
| VAILLANT VU GB 1206/5-5 R3 | 41-044-70 | 41-044-70 | — | — |
| VAILLANT VU GB 806/5-5 R2 | 41-044-68 | 41-044-68 | — | — |
| VAILLANT VU GB 806/5-5 R3 | 41-044-68 | 41-044-68 | — | — |
| VAILLANT VWZ MWT 150 | — | — | — | |
| VAILLANT aroTHERM VWZ MWT 150 | — | — | — | |
| VAILLANT aroTHERM VWZ MWT 150 (2013-2021) | — | — | — |
Showing 10 of 21 compatible appliances.
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.
VAILLANT appliance manual — VU 806/5-5 R4 (GC 41-044-68), VU GB 1006/5-5 R2 (GC 41-044-69), VU GB 1006/5-5 R3 (GC 41-044-69), VU GB 1206/5-5 R2 (GC 41-044-70), VU GB 1206/5-5 R3 (GC 41-044-70), VU GB 806/5-5 R2 (GC 41-044-68), VU GB 806/5-5 R3 (GC 41-044-68), ecoTEC VU 806/5-5 R4 (2017) (GC 41-044-68), ecoTEC VU GB 1006/5-5 R2 (2013-2014) (GC 41-044-69), ecoTEC VU GB 1006/5-5 R3 (2014) (GC 41-044-69), ecoTEC VU GB 1206/5-5 R2 (2013-2014) (GC 41-044-70), ecoTEC VU GB 1206/5-5 R3 (2014) (GC 41-044-70), ecoTEC VU GB 806/5-5 R2 (2013-2014) (GC 41-044-68), ecoTEC VU GB 806/5-5 R3 (2014) (GC 41-044-68)
manualmanualVAILLANT appliance manual — aroTHERM VWZ MWT 150 (2013-2021)
manualNo technical questions yet for this part.
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