Vaillant
Vaillant Open / Closed Bush 172970
Open/closed bush, part 172970, for Vaillant Ecotec PLUS and VU series gas boilers.
At a glance
- Also known as 1376478
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 172970 is an open/closed bush for Vaillant gas boilers. It is a small fitting used within the appliance assembly. It is listed for use across the Ecotec PLUS and VU range.
Signs this part needs replacing
- Weeping or damp staining around the bush
- Visible corrosion, scaling or thread damage
- Difficulty achieving a gas-tight or water-tight seal
- The bush is loose or has been cross-threaded during service
Before you order
- Confirm your boiler model against the fit list above
- Check the existing bush is the open/closed type
- Verify the part number 172970 matches the manufacturer's parts list for your appliance
Compliance
| Barcode / EAN | 4024074432631 |
|---|---|
| Alternative numbers | 1376478 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VAILLANT ECOTEC PLUS 415 VU GB 156-2-0H | — | — | — | |
| VAILLANT VAILLANT ECOTEC PLUS 418 VU GB 186-2-0H | — | — | — | |
| VAILLANT VAILLANT ECOTEC PLUS 428 VU GB 286-2-0H | — | — | — | |
| VAILLANT VAILLANT ECOTEC PLUS 438 VU GB 386-2-0H | — | — | — | |
| VAILLANT VU 156 | 41-044-53 | 41-044-53 | — | — |
| VAILLANT VU 186 | 41-044-54 | 41-044-54 | — | — |
| VAILLANT VU 186-O | 41-044-30 | 41-044-30 | — | — |
| VAILLANT VU 286 | 41-044-55 | 41-044-55 | — | — |
| VAILLANT VU 286-O | 41-044-31 | 41-044-31 | — | — |
| VAILLANT VU 386 | 41-044-57 | 41-044-57 | — | — |
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 — VU 156 (GC 41-044-53), VU 186 (GC 41-044-54), VU 286 (GC 41-044-55), VU 286-O (GC 41-044-31), VU 386 (GC 41-044-57), ecoTEC PLUS 415 VU 156 (2006) (GC 41-044-53), ecoTEC PLUS 418 VU 186 (2006) (GC 41-044-54), ecoTEC PLUS 428 VU 286 (2006) (GC 41-044-55), ecoTEC PLUS 438 VU 386 (2006) (GC 41-044-57)
manualmanualVAILLANT appliance manual — VU 186-O (GC 41-044-30), ecoMAX PRO 18E VU 186-0 (2003-2006) (GC 41-044-30), ecoMAX PRO 28E VU 286-0 (2003-2006) (GC 41-044-31)
manualNo technical questions yet for this part.
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