Fits: Jonsered models 49SP, 50, 51, 52E, 510SP, 520, 525, 535, 2045, 2050, 2141, 2145, 2150, 2152, 2245, 2250 plus other models. This bar works on Husqvarna models 45, 50, 55, 133SG, 136, 137, 140, 141, 142, 154, 234, 240, 242, 243, 246, 254, 340SE, 345, 350, 346, 350, 353, 455, 545, 550XP, 550XPG plus other models that are equipped with a. 325 pitch sprocket and use the Oregon K095 type mount.