Will the pcv from a 09 touring bike work on a 2010 touring bike?
I know the pc site shows 2 different part numbers, the thing is I have a pro pipe ho from a 09 bike on my 2010, just used the reducers for the smaller 02 semsors

 

I am using the PC V on my 2010 FLHRC with V&H dresser duals, V&&H Fish Tail slip ons and a Screamin Eagle breather.
I had to try a few maps before I found one that worked well. I have only had this set up since Saturday and I e-mailed the PC folks in hopes they would put out a map specifically for my setup. The instructions have you unplug both O2 sensors so you can either plug the pipes with short bolts or just leave the sensors in but disconnected under your right side side panel.
To answer your question, yes you can use it. I have part No. 1020-1121 anf got it from www.morepowerracing.com out of Washington State,, good folks. this is my second PC from them. Had the PC III on my last bike,,,

Recent Socal transplant from Seattle...

 

That's what I thought! Excellent!