Engine serial number

Good afternoon everyone, just wondering if there�s any way to match my engine to its original donor vehicle VIN using the engine serial number. I called local P dealer and they told me they couldn�t. Cheers

I believe no records were kept matching engine number to VIN. Only this:

The early COA's (Certificate of Authenticity ) originally had the engine and transmission Serial Numbers in them.......I have read that COA's don't have engine Serial Numbers in them, so it may now be eliminated... Also I remember seeing engine Serial Numbers stored in the DME under " extended identifications" using PST2 and PIWIS 1 , not sure about PIWIS 3...I haven't really looked since I know my original Serial Numbers ..

The COA for the 1970 has the engine number but no trans number. The COA for the 996 has both engine and trans.

Finding out what was the factory equipped engine or trans S/N from a vehicle VIN is straightforward, but trying to find the original vehicle VIN for a given engine S/N is nearly impossible. The best you can probably do with the information available is narrow it down to a specific year and model type (C2, C4, etc). What is the engine S/N prefix (first 3 digits)?

I don't know why anyone would want to know.....Most likely came from a junk yard from a totaled front end collision car...

Thanks for all the replies very helpful as usual everybody. From my previous research of my serial number it matches my car exactly I just know in the Carfax the engine was replaced two years ago by a shop in Missouri called the shop and they have no record of where it came from only that Day installed it.I was only trying to figure out how many miles it may have had on it when it was installed into my 911.

Hi SoCal, I am guessing that COA came with the vehicle. You maybe had it from new? Unfortunately, I do not have one do you know if its possible to get a replacement from Porsche? Thanks

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I got it 5 years ago from Suncoast for $10.00 I used the (now dead) link in this thread. You could contact Suncoast to see if they still offer the service. https://rennlist.com/forums/996-foru...l#post17404902

Porsche discontinued the COA in 2022 and replaced it with the Porsche Classic Technical Certificate (PCTC). There were people filing off engine numbers and using the COA number to create a numbers matching car. Now that isn't possible. To get a PCTC, you have to take it to one of the 17 Classic dealers and leave the car overnight. They examine the whole car and give you a 6 page report that tells if the numbers match and a whole lot more. It's like a PPI only they don't bore scope the engine. I just had it done at Paul Miller Porsche. Wish I had done it sooner. No mechanic ever told me I was missing a rear wheel liner and I wish they had because without it, a bunch a debris and water build up at a point by the transverse strut and rusts it out. Ug. The dealer won't tell you what engine number corresponds to your VIN because of what happened above. I

^^^ Hey @996-CAB , what did the PCTC cost (if you don’t mind me asking)? PM is fine if you’d rather not share in the open. Thanks!

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It cost $1300. It is clearly out of the realm of the casual owner, but I got some very useful info out of it like I would in a PPI which I did not do before I bought the car, and I needed numbers matching documentation to enter a particular national Concours, which I would not have won without it, As an aside, they washed the car for me and it revealed that the rear drains (it's a cab) were completely clogged. I thought they had been cleaned, but they were jammed full of crap, so, yeah that wasn't cheap fix but it saved my *** later. All in all, the PCTC and the process helped me quite a bit.