Head for spin on type oil filter for AD3.152.3 A4.203 & AD4.203 use filter numbers 1447082M1 to replace cartridge type filters Used on most of the following models 135, 150, 165, 230, 231, 235, 240, 240P, 240S, 245, 250, 255 Used Prior To Engine S/N 203UA127650DL.,