KOMATSU PC75R-2 final drive. KOMATSU PC75R-2 final drive for the excavator (21D-60-15010). The presented final drive and travel reducer is a high-quality dedicated component for machines of the renowned KOMATSU brand. It is available, among others, under the catalog number: 21D-60-15010. It has 12 holes for mounting to the frame, 16 holes for mounting the drive wheel and a 230 mm drive wheel mounting diameter. Fits, among others, models PC75, PC97R-2 and others using the Rexroth GFT9T2 gearbox. The gearbox is prepared for installation on both the right and left side of the excavator.