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Atag maintenance set OSS1 with ignition electrode
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Atag maintenance set OSS1 with ignition electrode S4785500

€ 139.79 incl. VAT

Original spare part Atag. Type: Maintenance kit, OSS1, With electrode. Application: Boiler / Blauwe Engel SHR 15. Supplier code: S4785500.

SKU: 8139602 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 / modelOSS 1 (15 en 24kW) and 8 other models
Atag numberS4785500
Article number8139602
Not sure? Search by article or manufacturer number or check with the manufacturer or your installer.
All spare parts for Atag OSS 1 (15 en 24kW) →
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Atag maintenance set OSS1 with ignition electrode: original Atag spare part, type: Maintenance kit, OSS1, With electrode. Application: Boiler (Blauwe Engel SHR 15). Manufacturer number: S4785500; Instalpunt article number: 8139602.

According to the Atag parts lists, this part fits 9 models, including Atag Blauwe Engel SHR 15, Atag Blauwe Engel SHR 24 and Atag Blauwe Engel SHR 24 T. 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: Atag maintenance set OSS1 with ignition electrode S4785500

BrandAtag spare parts
Atag manufacturer numberS4785500
Instalpunt article number8139602
EAN8719638554299
Part typeMaintenance kit (All Atag maintenance and service kits · maintenance and service kits of all brands)
ApplicationBoiler
Suitable for9 Atag models (see list)
DeliveryIn stock, delivery in 3–5 working days
Price€ 139,79 incl. VAT
OriginSupplied through the official technical wholesale channel, under Atag number S4785500

Fits 9 Atag models

The part Atag maintenance set OSS1 with ignition electrode S4785500 is in the official parts list of these Atag appliances. Click a model for the complete parts list and exploded view.

Atag Boiler (8)

Atag Warmtewisselaar (1)

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.

More spare parts for this appliance

Does this fit my appliance?

Enter your appliance type, for example as shown on the rating plate. You will see straight away whether the Atag maintenance set OSS1 with ignition electrode S4785500 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.

Frequently asked questions about this item

Does the Atag maintenance set OSS1 with ignition electrode S47855 fit my appliance?
This part is in the parts list of 9 Atag models, including the Blauwe Engel SHR 15, Blauwe Engel SHR 24, Blauwe Engel SHR 24 T, BR 24C. The model type is on the rating plate of your appliance. Use the “Does this fit my appliance?” search box on this page to check your model. If in doubt, ask the manufacturer or your installer.
What is the delivery time for the Atag maintenance set OSS1 with ignition electrode S47855?
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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