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Vaillant plate heat exchanger 20 plates VHR/3/3-5
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Vaillant plate heat exchanger 20 plates VHR/3/3-5 178973

€ 176.48 incl. VAT

Original spare part Vaillant. Type: Plate heat exchanger. Application: Boiler / hrSOLIDE plus VHR 18-22/3-5. Supplier code: 178973.

SKU: 8058963 Categories: , Brand:

Price and stock checked on 20 October 2026.

✓ In stock — delivery usually within 3–5 working days
EU delivery from € 17.95 · Shipping & payment

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

Does this fit my appliance?
ApplicationBoiler
Series / modelhrSOLIDE plus VHR 24-28/3-5 R3 and 5 other models
Vaillant number178973
Article number8058963
Not sure? Search by article or manufacturer number or check with the manufacturer or your installer.
All spare parts for Vaillant hrSOLIDE plus VHR 24-28/3-5 R3 →
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Vaillant plate heat exchanger 20 plates VHR/3/3-5: original Vaillant spare part, type: Plate heat exchanger. Application: Boiler (hrSOLIDE plus VHR 18-22/3-5). Manufacturer number: 178973; Instalpunt article number: 8058963.

According to the Vaillant parts lists, this part fits 6 models, including Vaillant hrSOLIDE/3 VHR 18-22/3 C, Vaillant hrSOLIDE/3 VHR 24-28/3 C and Vaillant hrSOLIDE plus VHR 18-22/3-5. 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 plate heat exchanger 20 plates VHR/3/3-5 178973

BrandVaillant spare parts
Vaillant manufacturer number178973
Instalpunt article number8058963
EAN4024074477540
Part typePlate heat exchanger (All Vaillant heat exchangers · heat exchangers of all brands)
ApplicationBoiler
Suitable for6 Vaillant models (see list)
DeliveryIn stock, delivery in 3–5 working days
Price€ 176,48 incl. VAT
OriginSupplied through the official technical wholesale channel, under Vaillant number 178973

Also known as: platenwarmtewisselaar, tapwaterwisselaar.

Fits 6 Vaillant models

The part Vaillant plate heat exchanger 20 plates VHR/3/3-5 178973 is in the official parts list of these Vaillant appliances. Click a model for the complete parts list and exploded view.

Vaillant Boiler (6)

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.

Position on the parts diagram

This spare part is shown as position 06 on the parts drawing. Open the drawing for the appliance and click the number to check that you have the right spare part.

For which fault is a Vaillant plate heat exchanger 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.042Break in the heat exchanger wiring harness

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 plate heat exchanger 20 plates VHR/3/3-5 178973 fit my appliance?
This part is in the parts list of 6 Vaillant models, namely the hrSOLIDE/3 VHR 18-22/3 C, hrSOLIDE/3 VHR 24-28/3 C, hrSOLIDE plus VHR 18-22/3-5, hrSOLIDE plus VHR 18-22/3-5 R3, hrSOLIDE plus VHR 24-28/3-5, hrSOLIDE plus VHR 24-28/3-5 R3. 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 plate heat exchanger 20 plates VHR/3/3-5 178973?
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 € 17.95 to Austria, Denmark, Italy, Spain and Sweden and € 24.95 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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