Item 70030260 has must read information.
: PER THE VENDOR THIS ITEM IS NOT AVAILABLE FOR PURCHASE ALL COMPONENTS MUST BE ORDERED INDIVIDUALLY. FOR PROER SERVICE REPLACEMENT PLEASE ORD ER THE FOLLOWING: JLG P/N 70028916 NITROGEN OXIDE SENSOR(QTY 1);JLG P/ N 70028917 TEMPERATURE SENSOR(QTY 1);JLG P/N 70028918 SENSOR BRACKET(Q TY 1);JLG P/N 70030275 SCREW(QTY 2);JLG P/N 70030276 SCREW(QTY2)