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Vaillant gas valve (for propane)
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Vaillant gas valve (for propane) 0020135521

€ 175.28 incl. VAT

Original spare part Vaillant. Type: Gas valve. Application: Water heater / MAG 6-0/0 XI Open. Supplier code: 0020135521.

SKU: 8050806 Categories: , Brand:
⏱ Lead time — approx. 7–10 days + 3–5 working days delivery
Delivery € 9.95 (AT, DK, ES, IT, SE) / € 12.95 (other EU countries), free from € 199 · 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 number0020135521
Article number8050806
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 0020135521, this is that part.
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Vaillant gas valve (for propane): original Vaillant spare part, type: Gas valve. Application: Water heater (MAG 6-0/0 XI Open). Manufacturer number: 0020135521; Instalpunt article number: 8050806.

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”.

Available in approx. 7–10 days: this item is ordered specially for you and shipped as soon as it arrives in our warehouse; delivery within the EU then 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 gas valve (for propane) 0020135521

BrandVaillant spare parts
Vaillant manufacturer number0020135521
Instalpunt article number8050806
EAN4024074617861
Part typeGas valve (All Vaillant gas valves and gas control · gas valves and gas control of all brands)
ApplicationWater heater
Suitable for2 Vaillant models (see list)
DeliveryAvailable in approx. 7–10 days + delivery in 3–5 working days
Price€ 175.28 incl. VAT
OriginGenuine manufacturer part, under Vaillant number 0020135521

Also known as: gasklep, gasregelblok, gasventiel.

Fits 2 Vaillant models

The part Vaillant gas valve (for propane) 0020135521 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.

For which fault is a Vaillant gas valve replaced?

According to the fault code database, these Vaillant fault codes point to this type of part. Always check first that the code matches the appliance type on the rating plate.

CodeWhat is going on
F.105Gas valve offset in D.052 set incorrectly
F.25Break in the wiring harness of the burner, fan and gas valve
F.26Gas valve stepper motor current implausible
F.27Ionisation signal with gas valves closed

All Vaillant fault codes explained

Indicative: the same code can have a different cause depending on the situation. Have work on gas, flue or burner adjustment carried out by a qualified installer.

Frequently asked questions about this item

Does the Vaillant gas valve (for propane) 0020135521 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 gas valve (for propane) 0020135521?
This item is not held in stock: available in approx. 7–10 days, then delivery within the EU usually takes 3–5 working days.
Can I return this item?
Yes, as a consumer within 14 days of receipt. You may unpack and inspect the item; for items that have been installed, connected or used (such as circuit boards) we deduct the diminished value. How to register your return is explained on returns.
What does shipping cost?
Shipping costs € 9.95 to Austria, Denmark, Italy, Spain and Sweden and € 12.95 to other EU countries; free delivery from € 199. In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page). 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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