For a VW bosch alternator.
Borrow, Buy(if cheap) or I'll bring the alternator and pulley to you.
Thanks Nige
CO2 more slippery than prison soap!
I am guessing its a clutch type pulley, so these are threaded on.
They do come in various sizes and the tools are in a kit.
Best option is to try a local repair shop, if the alternator is off the vehicle they take just minutes to fit