OMC Cobra Sliding Clutch Gear | Sierra 18-2383 Clutch Gear | Sierra 18-2383 SIERRA Clutch Gear 18-2383 OMC Cobra sliding clutch gear. Fits GM 3.0L 4.3L 5.0L 5.7L and Ford 5.0L 5.8L. Replaces OMC 914716 and 915272. Clutch Gear Fits GM 3.0L 4.3L 5.0L 5.7L Fits Ford 5.0L 5.8L Replaces OMC/Johnson/Evinrude 914716, 915272