I got my pacbrake kit from snedge, it worked great, bolted up very quick
Snedge is a dealer. Apparently they're available, they're just a special order from the factory and tend to have a big handling fee. To have clearance for my twins and a quality filtration system its worth it, IMO.
I posted list.
3284170 is not available at any Cummins PDC. It lists for $387.09.
Not sure if you will be able to find one, unless a dealer somewhere has one sitting around.
please educate the uninitiated: What list did you post, where did you post it?