Suit Nissan Patrol GU ZD30 Common Rail
These are new Genuine Nissan parts in Boxes.
Genuine Viscous Hubs are much more reliable than cheaper aftermarket imitations
The Viscous hub Is an oil filled Viscous Joint that connects the Fan to the Water pump.
If your car appears to be getting hot, and you can't hear the fan 'howling' then you may have a faulty viscous hub.