Aftermarket replacement parts compatible with selected Viessmann boilers, matched to OEM references and verified boiler models. Trade prices after login.
These are non-original, compatible spare parts. Viessmann is a trademark of its respective owner and is used here solely to describe compatibility.
Part categories for Viessmann
- Expansion vessels compatible with Viessmann
- Pressure sensors compatible with Viessmann
- Temperature sensors (NTC) compatible with Viessmann
- Flow sensors compatible with Viessmann
- Pumps and pump parts compatible with Viessmann
- Seals, gaskets and O-rings compatible with Viessmann
- Service kits compatible with Viessmann
Browse by Viessmann boiler series
Individual Viessmann boiler series and model families will appear here as their compatible-part data reaches VERIFIED or HIGH CONFIDENCE. Programmatic series and model pages are a later milestone.
Popular Viessmann OEM references we cover
Once the first anchor products are approved, the most-covered Viessmann OEM references show up here as a quick jump-list. We never list a reference we cannot back up.
How to identify your Viessmann part
Use the boiler’s data plate (manufacturer, model code, serial). If you have the OEM number, the fastest route is the search bar at the top of any page. Not sure where to look?
- Find my part – guided wizard
- Contact our technical team with the boiler brand, model, serial and part photo
Compatible with selected Viessmann models
A searchable list of the exact Viessmann boiler models covered by our current stock. We never suggest compatibility we cannot back up.
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Frequently asked questions
Are these original Viessmann parts?
No. HeatSpares supplies non-original, compatible replacement parts. Viessmann is a trademark of its respective owner and appears here only to describe compatibility.
How do you decide a part is compatible with a Viessmann model?
Only VERIFIED or HIGH-CONFIDENCE matches are shown. Sources include official technical documentation, trusted trade data, and our own testing. Matches that need review stay internal.
Do you cover the whole Viessmann range?
No. We open with the categories and series where our stock and compatibility data are strongest, and add coverage as we verify.
Brand names, trademarks and OEM references are used solely to identify compatibility. Unless explicitly stated otherwise, compatible products are not manufactured or endorsed by the original equipment manufacturer.