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Vaillant water section for e.g. MAG 6-0/0 XI-DG Open 0020135523
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Vaillant water section for e.g. MAG 6-0/0 XI-DG Open 0020135523

€ 81.28 incl. VAT

Original spare part Vaillant. Type: Water section. Application: Water heater / MAG 6-0/0 XI Open. Supplier code: 0020135523.

SKU: 8050802 Categories: , Brand:

Price and stock checked on 20 October 2026.

✓ In stock — delivery usually within 3–5 working days
EU delivery from € 12.95 · Shipping & payment

Price incl. VAT. Any delivery costs are calculated in the basket — see shipping & delivery.

Does this fit my appliance?
ApplicationWater heater
Series / modelMAG 6-0/0 XI-DG Open and 1 other model
Vaillant number0020135523
Article number8050802
Not sure? Search by article or manufacturer number or check with the manufacturer or your installer.
All spare parts for Vaillant MAG 6-0/0 XI-DG Open →
Same part, different name. Vaillant, Bulex and Saunier Duval belong to the same manufacturer group and use the same part numbers: if your Bulex or Saunier Duval part carries number 0020135523, this is that part.
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Vaillant water section for e.g. MAG 6-0/0 XI-DG Open 0020135523: original Vaillant spare part, type: Water section. Application: Water heater (MAG 6-0/0 XI Open). Manufacturer number: 0020135523; Instalpunt article number: 8050802.

According to the Vaillant parts lists, this part fits 2 models, including Vaillant MAG 6-0/0 XI-DG Open and Vaillant MAG 6-0/0 XI Open. The full list is under “Fits”.

In stock: order before 14:00 and it ships the same working day; delivery within the EU usually takes 3–5 working days.

Check the rating plate of your appliance before ordering; if in doubt, ask the manufacturer or your installer. Work on gas-carrying parts must be carried out by a qualified gas engineer.

Product information: Vaillant water section for e.g. MAG 6-0/0 XI-DG Open 0020135523

BrandVaillant spare parts
Vaillant manufacturer number0020135523
Instalpunt article number8050802
EAN4024074617885
Part typeWater section
ApplicationWater heater
Suitable for2 Vaillant models (see list)
DeliveryIn stock, delivery in 3–5 working days
Price€ 81,28 incl. VAT
OriginSupplied through the official technical wholesale channel, under Vaillant number 0020135523

Fits 2 Vaillant models

The part Vaillant water section for e.g. MAG 6-0/0 XI-DG Open 0020135523 is in the official parts list of these Vaillant appliances. Click a model for the complete parts list.

Vaillant Water heater (2)

Check the rating plate of your appliance. Not sure whether this part fits? Check with the manufacturer or your installer; with the correct manufacturer number you can order it here directly.

Frequently asked questions about this item

Does the Vaillant water section for e.g. MAG 6-0/0 XI-DG Open 0020135523 fit my appliance?
This part is in the parts list of 2 Vaillant models, namely the MAG 6-0/0 XI-DG Open, MAG 6-0/0 XI Open. The model type is on the rating plate of your appliance. If in doubt, ask the manufacturer or your installer.
What is the delivery time for the Vaillant water section for e.g. MAG 6-0/0 XI-DG Open 0020135523?
This item is in stock. Ordered before 14:00, it ships the same working day and usually arrives within three to five working days.
Can I return this item?
Yes, unused and in the original packaging within 14 days of receipt. Unpacked or fitted items and electronics such as PCBs cannot be returned. How to register a return is explained on returns.
What does shipping cost?
Shipping costs € 12.95 to Austria, Denmark, Italy, Spain and Sweden and € 16.95 to other EU countries. In-stock items ordered before 2 pm are dispatched the same working day; delivery usually takes 3–5 working days. Details: Shipping.
I have a fault code, which part do I need?
Look up the code in the fault code finder: per brand and appliance it shows what the code means and which part goes with it. If the code is listed with this part, the part belongs to that fault.

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