WTF!!! First time I have seen something new on a Dyson in ages

I presume it might be an oldie one if it's an Ametek, but that top plastic motor mount does look a bit similar to the YDK ones too
YDK Dc01's have female spade connectors and the motors have male ones, & Ametek DC01's have male spade connectors with the motor having female ports so I think that might be the easiest way to find out which kind of motor it should have if you check the connections on the motor

I also noticed that DC01's serial numbers beginning with 700 have a YDK motor in and 702 are Ametek from personal experience