Ignitor, Sparker W/Screw SVCE
   NOTE:  Use Starting with Serial #17000000 and
          Between Serial #16050607 and #16050686
          Prior to Serial #17000000 Except Between
          Serial#16050607 and #16050686 See 802449
   SRT    Use Regardless of Serial Number
   NOTE:  For 18K And 20K Ignitor See 826423