My 348 project is a winter game, so I have lots of time to do it right. As part of doing it right I want to make sure I get value for my money when buying parts, with quality being the 1st goal. I have noticed that there are numerous suppliers of parts, all appearing to have good customer service and commerce platforms. I could order from any. My question is in regards to part manufacturers. If two suppliers are selling the same Ferrari Part Number, and claim they are authentic Ferrari parts, does that mean they are identical parts (manufacturer)? How's about #185577 (the chain oil pump chain tensioner) as an example. Its obvious when you buy 3rd party parts that you know where they are coming from (i.e. PT348 bearing kit from Hill Engineering), but what about these actual Ferrari part numbers, are they all the same or not? Any advice on parts procurement is much appreciated.