google shopping has plenty of black and red...... so the house colours are or were black and red but I can also see white with blue lettering also marked delphi different font -could be they are a "chinese" copy.
My new ones are in a blue box made in china,marked “ Delphi and brand of Borg Warner”. Inside the box they look like the old ones and seem to work ok. Another company subbing out or offshoring products
I have some of these and was persuaded that they were the real thing .
It occurred to me that if you were going to counterfeit a product you would not totally change it's colour and that of the packaging .
They might be in the wrong market but they are marked as Borg Warner who indeed bought Delphi technologies recently .