Vaillant
Vaillant O-Ring Pack of 10 981234
Vaillant O-ring supplied as a pack of 10, for use in Ecomax and Ecotec Exclusive gas boilers.
At a glance
- Also known as 1378758
Showing prices
£10.15
£8.46 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
Vaillant O-ring supplied as a pack of 10. It is used in Vaillant Ecomax and Ecotec Exclusive gas boilers to seal joints and connections. The part number is 981234 and it supersedes 45578.
Signs this part needs replacing
- Visible cracking, hardening or flattening of the O-ring
- Weeping or dripping at the joint or connection
- Water or gas leakage around the seal
- Persistent pressure loss in the system
- Scale or residue build-up around the O-ring
Before you order
- Confirm your appliance model is listed in the Fits section
- Check the part number 981234 matches the component you are replacing
- Note that this is a pack of 10 — check how many O-rings your repair requires
- Ensure mating surfaces are clean before fitting
Compliance
| Barcode / EAN | 4024074403761 |
|---|---|
| Alternative numbers | 1378758 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| 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 VAILLANT ECOTEC EXCLUSIVE 832 - VUW 326/4 | — | — | — | |
| VAILLANT VAILLANT ECOTEC EXCLUSIVE 838 - VUW 386/4 | — | — | — | |
| VAILLANT VU 126/2-C | 41-044-27 | 41-044-27 | — | — |
| VAILLANT VU 186 E | 41-044-11 | 41-044-11 | — | — |
| VAILLANT VU 186/2-C | 41-044-28 | 41-044-28 | — | — |
| VAILLANT VU 226 E | 41-044-12 | 41-044-12 | — | — |
Showing 10 of 24 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 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 — VU 126/2-C (GC 41-044-27), VU 186/2-C (GC 41-044-28), VU 226/2-C (GC 41-044-29), VUW 246/2-C (GC 47-044-12), VUW 286/2-C (GC 47-044-17), 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 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)
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)
manualNo technical questions yet for this part.
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