Delco distributor w/screw cap. Ignitions points for gas applications.Fits Massey Ferguson models 1100, 135, 150, 165, 175, 180, 20 Indust/Const, 2135 Indust/Const, 255, 265, 30 Indust/Const, 3165 Indust/Const, 35, 40, 50 Loader, 65Replaces 1024923M91 1750877M91