Upgrading Stoker Blower Size

Scott P.

TVWBB Super Fan
I have the 5 CFM blower motor on my 8 year old Stoker. The power wires are starting to fatigue by the blower, so so I'd figure I'd upgrade the blower size to help accommodate my 22" WSM that I acquired last year. Does anyone know the part or specs for what I assume is a 10 CFM computer fan? I plan on email Rock's BBQ as well, but figured I could check here as well.