Non-switchable or switchable water pump

[VesselPal]

I'm looking for a water pump & timing belt kit. I've been looking at Gates, HEPU, INA but am having trouble figuring out wether I need a switchable or non-switchable pump. All websites point to both options so my only option is to call the VW dealer and beg them for a part number.
Besides tearing down the parts is there another option or logical conclusion? My van is a late 2018 CXHA 110kW 4M. low end trim level.
Logically the switchable pumps were put into high trim levels that simple panel vans... or not?

 

[Grim Reaper]

You could try to work out which it is from here..you need chassis number for your year then engine then whichever suits your engine and gearbox.

Catalog VW

Parts For VW

www.ilcats.ru

 

[VesselPal]

Is the original water pump impeller plastic?

 

[Grim Reaper]

It would appear to be still..