Dealer will be able to tell you the updated part numbers, they also will have how many times the part was updated on their screen. With some parts like the engine vac pump for example their are like 3-4 part numbers meaning the part was changed several times.


Personaly if it is running fine I'd just drive it. Wait for it to blow and swap in a short block. It may never blow why waste the time and money now?

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2006 CL500
2009 C300 4matic
1969 280SE
2023 Ram 1500
2007 Tiara 3200