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Bosch reducer W135
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Bosch reducer W135 87033050010

€ 21.77 incl. VAT

Original spare part Bosch. Type: Reducer, W135. Application: Water heater / W 125 butaan. Delivery time: approx. 7–10 days. Supplier code: 87033050010.

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

SKU: 8184061 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 / modelW 135 aardgas and 7 other models
Bosch number87033050010
Article number8184061
Not sure? Search by article or manufacturer number or check with the manufacturer or your installer.
All spare parts for Bosch W 135 aardgas →
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).
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Bosch reducer W135: original Bosch spare part, type: Reducer, W135. Application: Water heater (W 125 butaan). Manufacturer number: 87033050010; Instalpunt article number: 8184061.

According to the Bosch parts lists, this part fits 8 models, including Bosch W 125 butaan, Junkers (Bosch) W 125 butaan and Bosch W 125 K TZ ZT1. 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: Bosch reducer W135 87033050010

BrandBosch spare parts
Bosch manufacturer number87033050010
Instalpunt article number8184061
EAN4010009399223
Part typeReducer (All Bosch pipes, tubes and hoses · pipes, tubes and hoses of all brands)
ApplicationWater heater
Suitable for8 Bosch models (see list)
DeliverySpecial-order item, delivery time approx. 7–10 days
Price€ 21,77 incl. VAT
OriginSupplied through the official technical wholesale channel, under Bosch number 87033050010

Fits 8 Bosch models

The part Bosch reducer W135 87033050010 is in the official parts list of these Bosch appliances. Click a model for the complete parts list.

Bosch Water heater (8)

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.

Does this fit my appliance?

Enter your appliance type, for example as shown on the rating plate. You will see straight away whether the Bosch reducer W135 87033050010 is in the parts list of that model.

Not found? Check the rating plate of your appliance or search by article number. If in doubt, just email info@instalpunt.nl.

Available: Reducer 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 Bosch reducer W135 87033050010 fit my appliance?
This part is in the parts list of 4 Bosch models, namely the W 125 butaan, W 125 K TZ ZT1, W 135 aardgas, W 135 K TZ ZT1. 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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