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Nefit diaphragm (A)
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Nefit diaphragm (A) 87005030790

€ 45.58 incl. VAT

Original spare part Bosch. Type: Diaphragm. Application: Water heater / Kelvin WR 11H (GWH 11). Delivery time: approx. 7–10 days. Supplier code: 87005030790.

Special-order item — delivery time approx. 7–10 days — non-returnable

SKU: 8189014 Categories: , Brand:

Price and stock checked on 20 October 2026.

Made-to-order item — ordered specially for you, see delivery time below
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?
ApplicationWater heater
Series / modelF 2555HE-N and 2 other models
Bosch number87005030790
Article number8189014
Not sure? Search by article or manufacturer number or check with the manufacturer or your installer.
All spare parts for Nefit Fasto (Bosch) F 2555HE-N →
Made-to-order item — this spare part is not on our shelf and is ordered specially for you from the manufacturer or wholesaler, delivery time approx. 7–10 days. Specially ordered items cannot be returned: the manufacturer or supplier does not take them back. So check the type number of your appliance and the article number of the spare part beforehand. In doubt? Check with the manufacturer or your installer (see also returns).
9,0/10 WebwinkelKeur⚠ Made-to-order item: no returns possible iDEAL · Klarna · Bancontact 085-303 7272 ma–vr 08:00–17:00

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Nefit diaphragm (A): original Nefit spare part, type: Diaphragm. Application: Water heater (Kelvin WR 11H (GWH 11)). Manufacturer number: 87005030790; Instalpunt article number: 8189014.

According to the Nefit parts lists, this part fits 3 models, including Nefit Fasto (Bosch) F 2555HE-N, Bosch Kelvin WR 11H (GWH 11) and Bosch Kelvin WR 11P (GWH 11P). The full list is under “Fits”.

Special-order item (delivery time approx. 7–10 days): it is ordered specially for you from the manufacturer and is non-returnable.

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: Nefit diaphragm (A) 87005030790

BrandBosch spare parts
Bosch manufacturer number87005030790
Instalpunt article number8189014
EAN4010009923374
Part typeDiaphragm (All Bosch gaskets and seals · gaskets and seals of all brands)
ApplicationWater heater
Suitable for3 Bosch models (see list)
DeliverySpecial-order item, delivery time approx. 7–10 days
Price€ 45,58 incl. VAT
OriginSupplied through the official technical wholesale channel, under Bosch number 87005030790

Fits 3 Bosch models

The part Nefit diaphragm (A) 87005030790 is in the official parts list of these Bosch appliances. Click a model for the complete parts list.

Bosch Water heater (3)

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.

Available: Diaphragm for the same appliances

This part is currently out of stock. These Bosch parts of the same type are listed for at least one of the same appliance models and are available.

Before ordering, check the manufacturer number in the spare parts list or exploded view of your appliance.

Frequently asked questions about this item

Does the Nefit diaphragm (A) 87005030790 fit my appliance?
This part is in the parts list of 3 Bosch models, namely the F 2555HE-N, Kelvin WR 11H (GWH 11), Kelvin WR 11P (GWH 11P). 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 of this made-to-order item?
This is a special-order item: we order it specially for you from the wholesaler. The expected delivery time is approx. 7–10 days. You can also see the delivery time next to the stock status at the top of this page.
Can I return this made-to-order item?
A specially ordered item is not taken back by the supplier, so returns are not possible. So check the article number and the rating plate of your appliance beforehand. Is something wrong with your order? Then contact us via info@instalpunt.nl. The full terms and conditions are 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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