Stop pissing around online. Find a local Bosch distributor, and ask them
Autodoc implied something was genuine to me, but it was a cheap Chinese clone part. Thats why I know its quite hard to find an address for them, I have looked
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Now for most parts, it is at most an inconvenience and a bit of wasted cash, so does it really matter? But for a V6 crank sensor, it becomes a major inconvenience, depending where it lets you down.
Both of my "terminal" v6 crank sensor failures had different symptoms. The first one, in France, would allow me to do 2 - 4 miles before failing again, and needing to cool down. Sadly, Dijon to Brackley was too far to nurse it, so that was a major PITA to et the car repatriated. The 2nd was a complete failure at the NEC, and it just wouldn't start. Fortunately, I carried a spare after France, so quickly changed it and drove home. Had I not had one, that would have been a relay recovery.