Question about a "red" fan

[jimoreno]

I got my hands on a red fan but it has a smaller fan clutch bolt pattern. The current one has both bolt patterns on it.
Curious to see if anyone know the part number for the fan clutch with the smaller bolt pattern?
https://imgur.com/gallery/VTNRLEs

[Federico]

I believe your fan goes on this style clutch:
https://www.ecstuning.com/b-genuine-bmw ... 521260459/

If the E28 clutch fits inside the fan, I'd drill the correct holes.

[jimoreno]

I already tried that but it doesn't fit inside the fan metal hub. This clutch doesn't looks like it has a nut to attach it to the water pump so it doesn't seem to work. I might have purchased a nice garage wall decoration!