... cleanerdry,horizontal type with air cleanertransmission torque converter3-element,1-stage,1-phasecooling methodwater-cooledpower-shift planetary gear transmissionplanetary gear, ... track rollers--7(each side)NO. Of idler--1(each side)Track shoeassembled type--single toothpitch--228. ... kinds of parts and components for the following models available:1) KOMATSU excavator series: PC60, PC70, PC90, PC130, ...