Mine looks like yours, it took me about 2 hours of pulling with my friend’s help and several tools. I did use a gas fueled lighter to help though. Just keep at it and be careful not to break the mounts.
about the puller, should I order 4inch version exaclty as u posted here?
Regarding to the puller. As other mentioned, i just ended up breaking the pulley on the board, so i will try to find some other way to get it off and replace it.
Still keeping updated.
Told you not to use a puller 
A big flat head screwdriver did the trick for me for both pulleys. Not sure heat is required at all. Just torque it enough and it’ll come off.