thx guys,
... so the info about beefier crank bearings and larger cooling fins was incorrect.
> Higher oil capacity, thanks to the larger oil filter.
I assume the larger oil filter has the same base and threads?
> High-efficiency cooling fan and screen.
Can this be easily swapped between std & pro?
> PTO sleeve bearing, useful in applications with higher side loads.
Same question
Also, any idea on the exhaust question from my other post?
https://www.onlycubcadets.net/forum/...ad.php?t=63194
both are CH640s, but quite a large difference in pipe size. 2013 'Std' has the large pipe and the 2011 'pro' has the small pipe.
Also noticed the hinges for the engine cover are modified on the one with the large pipe (2013)