ISE Service Kit Briggs & Stratton 3.5hp & 3.75hp Sprint & Classic Replaces 272235 281028 & 495770/795083 / 694394 494408 Air filter Replace Briggs & Stratton: 272235. Spark plug Replace : B&S 992300 992041 , Champion RJ19LM , NGK BR2LM Diaphragm & Gasket Set Replace Briggs & Stratton Sprint Classic 281028 & 495770 ISE Service Kit includes 1 x air filter + 1 spark plug + 1 Diaphragm Kit + 1 primer bulb