Optical Sensor Johnson Evinrude | CDI 133-6343 CDI Johnson Evinrude Optical Sensor | CDI 133-6343 Replacement optical sensor for many different Johnson/Evinrude 4 cylinder & 6 cylinder outboard engines. CDI Electronics outboard timer base optical sensor Fits Johnson Evinrude 80 Jet, 90, 105, 100, & 115 HP 60 degree optical 4 cylinder engines from 1995 to 2006 Fits Johnson Evinrude 150 and 175 HP 60 degree optical carbureted 6 cylinder engines from 1995 to 2006 CDI determines the most common causes of component failure and designs their replacements to be better than the original Replaces BRP Johnson and Evinrude 584914, 586343 and 584265 Sierra 18-5884