Vaillant
Vaillant O-Ring Pack of 10 981158
Vaillant 981158 O-ring supplied as a pack of 10 for use on compatible Vaillant gas boilers.
At a glance
- Also known as 1374914
Showing prices
£9.60
£8.00 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 981158 is an O-ring supplied as a pack of 10. It is a sealing component used on compatible Vaillant gas boilers, sitting in a joint or seat to prevent water or gas leakage at the connection point. The O-ring is a service item, so it is normally renewed whenever the joint it seals is disturbed.
Signs this part needs replacing
- Water weeping or a visible trace of moisture around the joint the O-ring seals
- The O-ring has hardened, flattened or lost its round profile
- Cracking, splitting or perishing visible on the ring surface
- Scale or corrosion debris sitting on the sealing face
- A joint that continues to drip after being reassembled
Before you order
- Confirm your boiler model and GC number against the manufacturer's parts list
- Check how many O-rings the job requires, as this part is supplied as a pack of 10
- Inspect the O-ring seat or groove for scoring, corrosion or damage before fitting
- Check that no other seals or gaskets on the same joint also need renewing
Compliance
| Barcode / EAN | 4024074381519 |
|---|---|
| Alternative numbers | 1374914 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT ECOmax 613 VU 126 E-C (2000-2001) | 41-044-20 | 41-044-20 | — | — |
| VAILLANT ECOmax 618 VU 196 E-C (2000-2001) | 41-044-21 | 41-044-21 | — | — |
| VAILLANT ECOmax 622 VU 246 E-C (2000-2001) | 41-044-22 | 41-044-22 | — | — |
| VAILLANT ECOmax 824 VUW 246 E-C (1999-2001) | 47-044-07 | 47-044-07 | — | — |
| VAILLANT ECOmax 828 VUW 286 E-C (1999-2001) | 47-044-08 | 47-044-08 | — | — |
| VAILLANT ECOmax VU 186E (1995-2000) | 41-044-11 | 41-044-11 | — | — |
| VAILLANT ECOmax VU 226E (1995-2000) | 41-044-12 | 41-044-12 | — | — |
| VAILLANT ECOmax VUW 236E (1995-1999) | 47-044-23 | 47-044-23 | — | — |
| VAILLANT ECOmax VUW 286E (1995-1999) | 47-044-24 | 47-044-24 | — | — |
| VAILLANT THERMOcompact VU 142/1E (1998-2000) | 41-044-16 | 41-044-16 | — | — |
Showing 10 of 93 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 — ECOmax 824 VUW 246 E-C (1999-2001) (GC 47-044-07), ECOmax 828 VUW 286 E-C (1999-2001) (GC 47-044-08), VUW 246 E-C (GC 47-044-07), VUW 286 E-C (GC 47-044-08)
manualmanualVAILLANT appliance manual — ECOmax VUW 236E (1995-1999) (GC 47-044-23), ECOmax VUW 286E (1995-1999) (GC 47-044-24), VUW 236 E (GC 47-044-23), VUW 286 E (GC 47-044-24)
manualmanualVAILLANT appliance manual — THERMOcompact VU 142/1E (1998-2000) (GC 41-044-16), THERMOcompact VU GB 142/1 E (1998-2000) (GC 41-044-16), THERMOcompact VU GB 182/1E (1998-2000) (GC 41-044-13), THERMOcompact VU GB 242/1E (1998-2000) (GC 41-044-18), THERMOcompact VU GB 282/1E (1998-2000) (GC 41-044-19), VU 142/1 E (GC 41-044-16), VU 182/1 E (GC 41-044-13), VU 242/1 E (GC 41-044-18), VU 282/1 E (GC 41-044-19)
manualmanualVAILLANT appliance manual — TURBOmax VUW 242/1E (1998-2000) (GC 47-044-02), TURBOmax VUW 282/1E (1998-2000) (GC 47-044-06), VUW 242/1 E (GC 47-044-02), VUW 282/1 E (GC 47-044-06)
manualmanualVAILLANT appliance manual — TURBOmax VUW 242E (1995-1998) (GC 47-044-25), TURBOmax VUW 282E (1995-1998) (GC 47-044-26), VUW 242 E (GC 47-044-25), VUW 282 E (GC 47-044-26)
manualmanualVAILLANT appliance manual — VU 126/2-C (GC 41-044-27), VU 186/2-C (GC 41-044-28), VU 226/2-C (GC 41-044-29), VU 356-C (GC 41-044-43), VU 356/2-C (GC 41-044-43), VUW 246/2-C (GC 47-044-12), VUW 286/2-C (GC 47-044-17), VUW 356-C (GC 47-044-27), ecoMAX 613/2E VU 126/2 C (2001-2006) (GC 41-044-27), ecoMAX 618/2E VU 186/2 C (2001-2006) (GC 41-044-28), ecoMAX 622/2E VU 226/2 C (2001-2006) (GC 41-044-29), ecoMAX 635 E VU 356-C (2004-2006) (GC 41-044-43), ecoMAX 635 VU 356/2-C (2006-2008) (GC 41-044-43), ecoMAX 824/2 E-C VUW 246/2 E-C (2001-2006) (GC 47-044-12), ecoMAX 828/2E VUW 286/2 C (2001-2006) (GC 47-044-17), ecoMAX 835E VUW 356 C (2002-2006) (GC 47-044-27)
manualmanualVAILLANT appliance manual — VU 466/4-5 (GC 41-044-58), VU 656/4-5 (GC 41-044-59), ecoTEC VU 466/4-5 (2007-2015) (GC 41-044-58), ecoTEC VU 656/4-5 (2007-2015) (GC 41-044-59)
manualmanualVAILLANT appliance manual — VU 656-7 (GC 41-044-59), ecoMAX 665 VU 656-7 (2006-2006) (GC 41-044-59)
manualmanualVAILLANT 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 — VUW 326/4-7 (GC 47-044-37), VUW 386/4-7 (GC 47-044-38), ecoTEC EXCLUSIVE 832 VUW 326/4-7 (GC 47-044-37), ecoTEC EXCLUSIVE 838 VUW 386/4-7 (GC 47-044-38)
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