Vaillant
Vaillant Water Valve Lower Part 115303
Lower section of the water valve assembly for Vaillant MAG and MAG Mini water heaters.
At a glance
- Also known as 1387284
£53.26
£44.38 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
The water valve lower part is a component of the water valve assembly used on Vaillant MAG and MAG Mini water heaters. It forms the lower section of the valve body, where water flow through the appliance is controlled. It is supplied under Vaillant part number 115303.
Signs this part needs replacing
- Water leaking from the lower section of the water valve body
- Reduced or inconsistent hot water flow through the heater
- Visible corrosion, scale build-up or cracking on the valve body
- Water valve failing to regulate flow correctly during draw-off
Before you order
- Confirm the appliance model matches one of the fitments listed above
- Check the existing valve section against part number 115303 before ordering
- Inspect the upper valve section and seals for wear, as these may also need attention
Compliance
| Alternative numbers | 1387284 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT MAG 14-0/0 XI (2004-2009) | — | — | — | |
| VAILLANT MAG 14-0/0 XZ (2004-2009) | — | — | — | |
| VAILLANT MAG mini 11-0/0 XI (2004) | — | — | — | |
| VAILLANT MAG mini 11-0/0 XZ (2004) | — | — | — |
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.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
No technical questions yet for this part.
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