Fire Ring Cummins 12V & 24V Posted on 09/19/2014 by BBDiesel BB Diesel Performance now offers installation of Fire Ring for Cummins 12V, 24V, 5.9 and 6.7 Common Rail engines. Post by BB Diesel Performance. Share With Your WorldClick to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to email this to a friend (Opens in new window)