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A.O. Smith main burner for e.g. NGT 155 NN 0304239(S)

€ 68.38 incl. VAT

Original spare part A.O. Smith. Type: Burner, 0071642 0300593 0300468. Application: Hot water cylinder / NGT 115 NN. Delivery time: approx. 3–4 weeks. Supplier code: 0304239(S).

Special-order item — delivery time approx. 3–4 weeks — non-returnable

SKU: 8750343 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?
ApplicationHot water cylinder
Series / modelNGT 155 NN and 4 other models
A.O. Smith number0304239(S)
Article number8750343
Not sure? Search by article or manufacturer number or check with the manufacturer or your installer.
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. 3–4 weeks. 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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A.O. Smith main burner for e.g. NGT 155 NN 0304239(S): original A.O. Smith spare part, type: Burner. Application: Hot water cylinder (NGT 115 NN). Manufacturer number: 0304239(S); Instalpunt article number: 8750343.

According to the A.O. Smith parts lists, this part fits 5 models, including A.O. Smith NGT 115 NN, A.O. Smith NGT 155 NN and A.O. Smith PGCS 30. The full list is under “Fits”.

Special-order item (delivery time approx. 3–4 weeks): 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.

Product information: A.O. Smith main burner for e.g. NGT 155 NN 0304239(S)

BrandA.O. Smith spare parts
A.O. Smith manufacturer number0304239(S)
Instalpunt article number8750343
EAN8717449201098
Also known as0071642, 0300593, 0300468
Part typeBurner (All A.O. Smith burners · burners of all brands)
ApplicationHot water cylinder
Suitable for5 A.O. Smith models (see list)
DeliverySpecial-order item, delivery time approx. 3–4 weeks
Price€ 68,38 incl. VAT
OriginSupplied through the official technical wholesale channel, under A.O. Smith number 0304239(S)

Also known as: branderdek, voormengbrander.

Fits 5 A.O. Smith models

The part A.O. Smith main burner for e.g. NGT 155 NN 0304239(S) is in the official parts list of these A.O. Smith appliances. Click a model for the complete parts list and exploded view.

A.O. Smith Hot water cylinder (5)

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 part appears on the exploded view of 5 appliances. Open the drawing for the appliance and click the number to check that you have the right part.

For which fault is a A.O. Smith burner replaced?

According to the fault code database, these A.O. Smith 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
Explosive ignitionDe brander is vuil.
F04Three unsuccessful ignition attempts: no burner pressure
X57-XXXX(Lockout fault) Short circuit of the flame sensor: electrical connection between the flame sensor and the tank or burner.

All A.O. Smith 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.

Available: Burner for the same appliances

This part is currently out of stock. These A.O. Smith 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 A.O. Smith main burner for e.g. NGT 155 NN 0304239(S) fit my appliance?
This part is in the parts list of 5 A.O. Smith models, namely the NGT 115 NN, NGT 155 NN, PGCS 30, PGCS 40, Tune 150 - 200. 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. 3–4 weeks. 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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