DOP20BPX078GJO Loop-Saw Chain. 20 Series MicroChisel® .325 Pitch, .050 Gauge, 78 Drive Links. Fits Jonsered model 2014, 2016, 2035, 2036, 2036 Turbo, 2040, 2040 Turbo, 2041, 2045, 2050, 2050 Turbo, 2054, 2141, 2145, 2149, 2149 Turbo, 2150, 370, 410, 420, 425, 435, 45, 450, 451, 455, 49, 50, 51, 510, 52, 521, 535, CS 2135, CS 2137, CS 2138, CS 2141, CS 2145, CS 2150, CS 2152, CS 2152W Chain saws. Replaces 33SL078G.