When an advert says genuine in big bold letters you shouldn't need to go looking through all the fine print to find out it's actually not. Buying items sight unseen relies a great deal on the seller been honest with the description of the goods. I've used them once but never again.
Its genuine to them who make it, doesn't state a name but it does have their logo in picture so its not misleading, like I said they do sell Delphi, read the description before you buy. Does it say Holden or Delphi No, besides that there products haven't failed me, if you look on their page they do list known brands in picture, its up to you like I say never had a issue with their OEM replacement parts. What's not to say it is genuine and they put the wrong brand in the description, if your not sure then contact them.
If you made me something then that is the genuine item is it not.
genuine meaning,
authentic, true, actual, bona fide, original, veritable, unadulterated, pure, unmixed, undisguised, unerring, official,
certified,
verified,
confirmed, whole,
accurate, proved,
tested, ascertained,
good, natural, unimpeachable, unquestionable, authenticated, substantial, unalloyed, factual, demonstrable, palpable, ...