Dan, it does have something engraved on the top. I tried to clean it off quickly, but I probably need to take it off to see it better. If you look at the first picture Kats attached in the post in the other thread, it looks like there is a Hitachi symbol and some writting, maybe a part number. Kats says the Hitachi part is #LT145-35. The parts catalog shows the Nissan part #23100-A4800 for the early 40A alternator. As for the oil pressure sending unit wiring minder, I checked my low mileage 72 and it also has it, so apparently it is not just an early item. It is missing from #32, however. Unfortunately, I don't think I have any spares. Keep the questions coming. I think #210 will be a good reference car, I just wish it was warmer and I had more time to spend with it. -Mike