Cavity Repl-30,Dual Fuel,SVCE,30DF,DF48,DF60,IR304
  DF304   Starting With #18115700 See 831241
          Prior to Serial #16000000 See 805797
          From #16000000 to #17116081 See 807868
          From #17116081 to #18115700 See 813298
  DF48    Starting With #18115700 See 831241
          Prior to Serial #16000000 See 805797
          From #16000000 to #17115847 See 807868
          From #17115847 to #18115700 See 813298
  DF60    Starting With #18115700 See 831241
          Prior to Serial #16000000 See 805797
          From #16000000 to #17116444 See 807868
          From #17116444 to #18115700 See 813298
  IR304   See 831241