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Penta MD2030,exhaust elbow replacement

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Rapita:
I am about to replace the elbow (corroded)with a stainles.steel unit,prices vary from 120£ to £300 approx.Does anyone have experience of purchasing these?The pictures often look generic,I dont want to buy a faulty one! Thank you in anticipation.

marioxp:
I bought it from aliexpress, the cheapest at the time, about 190 euros.  I have no complaints, but I have been using it for a short time, about 1 month.

Yngmar:
I bought from parts4engines, who have a good reputation with such things. It was for an MD22 in my case, so just the small injector piece that always rots away on that engine instead of the whole elbow. Wasn't magnetic at least! :)

Rapita:
Thank you for your replies,my main concern is that I dont get any galvanic corrosion  on the heat exchanger  body, also that the construction of the casting is correct so that the cooling water does nt back feed towards the exhaust port.I think I will buy the non volvo part and save a lot of money.

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