We can provide power shift and non-power shift transmission for various kinds of bulldozers (including 80, 100, 130, 160, 220, 230, 320, 420, 520 hp, and etc.).

SD23 is planetary type, hydraulic gear shift, forced lubrication, 3 forward gears and 3 reverse gears, applicable to SD32 bulldozers, DG45 pipe hoist and etc.