Vaillant
Vaillant O-Ring 0020195504
Vaillant O-ring, part number 0020195504, for VU, VUW, HOME and Ecofit PURE gas boilers.
At a glance
- Also known as 1387936
Showing prices
£9.42
£7.85 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 0020195504 is an O-ring seal used on Vaillant gas boilers. It forms a compression seal at the joint where it is fitted, preventing leakage from that connection. It is listed for use across the VU, VUW, HOME and Ecofit PURE ranges.
Signs this part needs replacing
- Water weeping or dripping from the joint the O-ring seals
- The seal is visibly flattened, cracked or perished
- Scale, corrosion or debris deposits built up around the seal
- The joint continues to leak after the fitting has been tightened
- Damp staining or residue on components below the joint
Before you order
- Confirm the part number 0020195504 against your appliance's parts list
- Check your boiler model and GC number against the fit list above
- Establish how many seals the joint requires before starting the repair
- Inspect the mating surfaces for damage or corrosion, as a worn face will not seal with a new O-ring alone
Compliance
| Alternative numbers | 1387936 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT HOME COMBI 25 -A | 47-044-62 | 47-044-62 | — | — |
| VAILLANT HOME COMBI 30 -A | 47-044-63 | 47-044-63 | — | — |
| VAILLANT HOME COMBI 35 -A | 47-044-64 | 47-044-64 | — | — |
| VAILLANT HOME REGULAR 12 -A | 41-044-88 | 41-044-88 | — | — |
| VAILLANT HOME REGULAR 15 -A | 41-044-89 | 41-044-89 | — | — |
| VAILLANT HOME REGULAR 18 -A | 41-044-90 | 41-044-90 | — | — |
| VAILLANT HOME REGULAR 25 -A | 41-044-92 | 41-044-92 | — | — |
| VAILLANT HOME REGULAR 30 -A | 41-044-93 | 41-044-93 | — | — |
| VAILLANT HOME SYSTEM 12 -A | 41-044-94 | 41-044-94 | — | — |
| VAILLANT HOME SYSTEM 15 -A | 41-044-95 | 41-044-95 | — | — |
Showing 10 of 68 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 — HOME COMBI 25 -A (GC 47-044-62), HOME COMBI 30 -A (GC 47-044-63), HOME COMBI 35 -A (GC 47-044-64)
manualmanualVAILLANT appliance manual — HOME REGULAR 12 -A (GC 41-044-88), HOME REGULAR 15 -A (GC 41-044-89), HOME REGULAR 18 -A (GC 41-044-90), HOME REGULAR 25 -A (GC 41-044-92), HOME REGULAR 30 -A (GC 41-044-93)
manualmanualVAILLANT appliance manual — HOME SYSTEM 12 -A (GC 41-044-94), HOME SYSTEM 15 -A (GC 41-044-95), HOME SYSTEM 18 -A (GC 41-044-96), HOME SYSTEM 25 -A (GC 41-044-97)
manualmanualVAILLANT appliance manual — VU 126/6-5 OV (GC 41-044-71), VU 156/6-5 OV (GC 41-044-72), VU 186/6-5 OV (GC 41-044-73), VU 246/6-5 OV (GC 41-044-74), VU 306/6-5 OV (GC 41-044-75), ecoTEC PLUS 412 VU 126/6-5 OV (2015) (GC 41-044-71), ecoTEC PLUS 415 VU 156/6-5 OV (2015) (GC 41-044-72), ecoTEC PLUS 418 VU 186/6-5 OV (2015) (GC 41-044-73), ecoTEC PLUS 424 VU 246/6-5 OV (2015) (GC 41-044-74), ecoTEC PLUS 430 VU 306/6-5 OV (2015) (GC 41-044-75)
manualmanualVAILLANT appliance manual — VU 126/6-5 OVZ (GC 41-694-13), VU 156/6-5 OVZ (GC 41-694-14), VU 186/6-5 OVZ (GC 41-694-15), VU 246/6-5 OVZ (GC 41-694-16), VU 306/6-5 OVZ (GC 41-694-17), VU 356/6-5 OVZ (GC 41-044-76), ecoTEC PLUS 412 VU 126/6-5 OVZ (2016) (GC 41-694-13), ecoTEC PLUS 415 VU 156/6-5 OVZ (2016) (GC 41-694-14), ecoTEC PLUS 418 VU 186/6-5 OVZ (2016) (GC 41-694-15), ecoTEC PLUS 424 VU 246/6-5 OVZ (2016) (GC 41-694-16), ecoTEC PLUS 430 VU 306/6-5 OVZ (2016) (GC 41-694-17), ecoTEC PLUS 435 VU 356/6-5 OVZ (2016) (GC 41-044-76)
manualmanualVAILLANT appliance manual — VUW 246/7-2 (GC 47-044-79), VUW 286/7-2 (GC 47-044-80), VUW 346/7-2 (GC 47-044-81), ecoTEC SUSTAIN 24 VUW 246/7-2 (2017) (GC 47-044-79), ecoTEC SUSTAIN 28 VUW 286/7-2 (2017) (GC 47-044-80), ecoTEC SUSTAIN 34 VUW 346/7-2 (2017) (GC 47-044-81)
manualmanualVAILLANT appliance manual — ecoFIT PURE 412 - VU 126/6-3 OV (2016) (GC 41-694-08), ecoFIT PURE 415 - VU 156/6-3 OV (2016) (GC 41-694-09), ecoFIT PURE 418 - VU 186/6-3 OV (2016) (GC 41-694-10), ecoFIT PURE 425 - VU 256/6-3 OV (2016) (GC 41-694-11), ecoFIT PURE 430 - VU 306/6-3 OV (2016) (GC 41-694-12), ecoFIT PURE 435 - VU 356/6-3 OV (2016) (GC 41-694-19)
manualmanualVAILLANT appliance manual — ecoFIT PURE 612 - VU 126/6-3 (2016) (GC 41-694-03), ecoFIT PURE 615 - VU 156/6-3 (2016) (GC 41-694-04), ecoFIT PURE 618 - VU 186/6-3 (2016) (GC 41-694-05), ecoFIT PURE 625 - VU 256/6-3 (2016) (GC 41-694-06), ecoFIT PURE 630 - VU 306/6-3 (2016) (GC 41-694-07)
manualmanualVAILLANT appliance manual — ecoFIT PURE 825 - VUW 256/6-3 (2016) (GC 47-044-68), ecoFIT PURE 830 - VUW 306/6-3 (2016) (GC 47-044-74), ecoFIT PURE 835 - VUW 356/6-3 (2016) (GC 47-044-70)
manualmanualVAILLANT appliance manual — ecoFIT SUSTAIN 415 - VU 156/6-3 OV (2018) (GC 41-694-33), ecoFIT SUSTAIN 418 - VU 186/6-3 OV (2018) (GC 41-694-34), ecoFIT SUSTAIN 430 - VU 306/6-3 OV (2018) (GC 41-694-35)
manualmanualVAILLANT appliance manual — ecoFIT SUSTAIN 615 - VU 156/6-3 (2018) (GC 41-694-30), ecoFIT SUSTAIN 618 - VU 186/6-3 (2018) (GC 41-694-31), ecoFIT SUSTAIN 630 - VU 306/6-3 (2018) (GC 41-694-32)
manualmanualVAILLANT appliance manual — ecoFIT SUSTAIN 825 - VUW 256/6-3 (2016) (GC 47-044-71), ecoFIT SUSTAIN 830 - VUW 306/6-3 (2016) (GC 47-044-72), ecoFIT SUSTAIN 835 - VUW 356/6-3 (2016) (GC 47-044-73)
manualNo technical questions yet for this part.
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